THIS Is The TRUTH About Diesel Additives...

[@RepairGeek]

Products featured in this video: Opti Lube XPD: amzn.to/40h1Q57 Archoil AR6500: amzn.to/4guOGqG PowerService Kleen + Cetane Boost: amzn.to/41TVpWE Hot Shot Secret EDT: amzn.to/4gTv935 Stanadyne Performance Formula: amzn.to/4gBLycB My Amazon Store: www.amazon.com/shop/repairgeek Help support the channel, buy using my Amazon links As an Amazon Associate I earn from qualifying purchases and your cost is exactly the same.

[@thorwaldjohanson2526]

@RepairGeek Thank you so much for this testing. Please do more popular additives in the future, especially the ones that are widely accessible. It would also be great if the detergent / deposit control performance. Anti gel performance you guys could probably test yourself "project farm" style. I will help and send a couple of bucks your way if you do. I wouldn't mind a crowd fund either for more testing, where every dollar spend gives you a vote of what product to test next. Have the consumers unite. This info is so hard to get.

[@RepairGeek]

@@thorwaldjohanson2526 I've thought about starting up channel memberships, Patreon, and Paypal. My problem with it is, it feels like I'm just asking for money... I was raised with the mentality, if you want something, go bust your *ss for it. The larger the channel gets I'm starting to consider it more because INDUSTRY STANDARD testing is stupid expensive and I want to do more of it but, it doesn't sit well with me.

[@dang495]

I would like to know how fuel stabilizers perform. It's a big ask expecting you to store fuel with various stabilizers for 1+ years. But I bet there is an interest.

[@thorwaldjohanson2526]

@@RepairGeek You could do a collaborative crowd fund together with other automotive youtubers for that specific project. Depending on how much money it raises, you can test more or less products. There is no proper comparison for multiple products since the 2007 study and now this video. I guarantee there is significant interest in this!

[@CuriousEnigma-d5r]

Opti Lube XPD is incredible. Used for years. Totally worth it. Best on the market. Thanks for sharing your results. Awesome work guys!

[@outwestjim]

Great video, gentlemen! As the original founder and chief formulator of Opti-Lube XPD (in collaboration with Lubrizol), I’d like to share a bit of history. When we developed XPD during the early years of the ultra-low sulfur fuel mandate, our goal was a truly multi-functional additive-enhancing lubricity, boosting cetane, cleaning injectors, preventing gelling, and mitigating water contamination. It’s great to see it remain top-tier nearly 20 years later, the current owners of the company are obviously doing a great job. Interestingly, many users reported improved fuel economy with both XPD and the Summer Blend, a benefit also noted by Diesel Power Magazine in ~2008. This offsets some of the cost of the product. Perhaps future tests could explore these advantages further. Thanks for the excellent content-yours and Lake’s videos are always a pleasure to watch!

[@tonymolinaro2678]

I have been using both of your products for awhile now. My milege is higher with the summer blend.

[@RepairGeek]

Thanks for providing some of the backstory on Opti Lube. I live in Ohio, where the temperature can swing by 50 degrees in 3 days time. That makes it hard to get repeatable results doing an MPG test. You need an extraordinarily large sample size to get good data, typically months to account for the weather and traffic. Now multiply that time by 5 additives and a control with no additives and you're talking literal years of work and documentation for somebody like me with without a dyno cell where I could run an engine at a fixed load for a set amount of time. I'm sure with a dyno you could get a result in a few hours for each product. Yes things like gelling, detergents, and water contamination could have also been tested, the issue is really financial. What was done for 1 product would have to be done for the other 4 and a control. So adding all those tests would have this video COMPLETELY upside down financially for all involved. I'm sure you're aware of what testing like this costs. I would have liked to have done more but, we simply don't have the resources. Thanks for the kick ass product that helps keep our stuff alive!

[@outwestjim]

​@@RepairGeek Totally understand about the rabbit hole of testing! You're right about the challenges of fuel economy testing, so many variables. My thought is if a fuel additive offers at least some improvement in MPG, it would help offset some of the investment in a premium product. Thanks again for providing such great content!

[@pbalerig]

@@outwestjim awesome to share all that thank you

[@RepairGeek]

Completely agree. Even just a reduction in regens would have a tangible effect on fuel costs even if the engines "functional" MPG remained the same.

[@herrprepper2070]

When I bought my first new diesel… 1984 GMC K2500 6.2L…. A really good diesel mechanic advised me… “Use the proper oil and filters… change oil and filter at 5k… never put it in gear until it’s warmed up… use Power Service in every tank of fuel.” I followed that advice and 40 years and 350,000 miles later, that truck is still my livestock water hauler.

[@fsjeepin4644]

Finally, the video I’ve been wanting and waiting for! Awesome to see the collab between two of the most informative channels in the KZbin automotive universe.

[@zubrickadvisors6742]

I have been driving Archoil in my 2003 7.3 for 200K miles, and I have now 343K miles. It purrs. I start without block heaters at 9 degrees with no problems. I swear by it, I would use nothing else. I have owned that truck for 21 years, people. I wish you my kind of success.

[@jeremeoosterman545]

I use the archoil winter blend at -15 not a problem I won't use anything thing else for now on truck runs better with the archoil products.

[@ericbergeron7658]

Same here! Archoil in my 02 7.3! Starts at - 20c, coughs and whines at me for a second then it revs up without hickups and within minutes exhaust comes out clear. Maybe other engines prefer other things, but 7.3s do love the Archoil.

[@brucefrederick7764]

It is called Viscosity

[@FriendlyPhoton]

When I drove a diesel, I bought a case of long-neck glass bottles (hot sauce bottles) that were about the size of the treat rate for a regular fill-up, and I kept those pre-filled with fuel treatment in the trunk. So when I got to the fuel pump, I just opened one of those bottles, dumped its content into the tank, and then filled up with diesel. I had 24 of those bottles, which was good for almost 6 months. Much less messy than trying to deal with those giant bottles, and much cheaper than buying smaller bottles of fuel treatment

[@AquaticLogic]

Cummins owner here. You are a genius. Thanks for the tip!

[@rsuninv]

I’ve been doing this for about a year. I use chemical lab grade plastic bottles. Super convenient. I also use lid wrap so the lids don’t accidentally walk off. Love it. I have a 7.3 Powerstroke with 350,000 miles.

[@RustedReality]

I tried this method too. I forgot that it was fuel treatment and used the “sauce” on my sandwich and I too got three more miles to the gallon and my insides were never cleaner.

[@bradn1559]

Hot Shot EDT has a squeeze bottle just like some 2 stroke bottles. Squeeze to fill cap, poor into fuel tank and put EDT bottle back in tool box. Very Easy and prob the biggest reason I started using EDT compared to others. Forget all that measuring and filling up other containers. These treatments STINK and are the last thing you want on your clothes or truck interior!

[@tomcunning4473]

I got the sta-bil 32oz squeeze bottle. Dumped that out and i am able to refill the bottle with my perferred additive to measure for fuel fillups. Super easy

[@guywhite1004]

Thanks to Bill Hewitt I started using Archoil in my RV which has the 3.0 liter turbo diesel Mercedes engine. It had 38k miles on it when I bought it. The first tankful (26 gallon fuel tank) or so the engine smoothed out and quieted down. Mileage improved about 1 mpg. I have been using it now for over 7000 miles and have had zero problems with operation and plan to continue using it and the fuel system cleaner ( every 5 k miles). I also change my oil, Mercedes recommended Mobil 1 5w-30 ESP every 5000 miles (Mercedes recommends every 20k miles, but that’s insane). It’s the little engine that could now hauling an 11000 lb. RV towing a 3000 lb. car.

[@olddirtyburt7522]

Got a 3.0 liter TDI and they recommend 10k on the oil changes. Nope. Liqui-Moly top tech 4200 every 5k.

[@happysawfish]

Got an 09 E320 CDI with same engine, just doesn't take DEF. Drove it from Chattanooga TB to Athens GA and back yesterday and the thing records 37 mpg. With 185k on it. I've had it since 2013.

[@kirkcardoso6137]

Get rid of that rv. That 3.0 is a major piece of shit.

[@karenb321]

Bill Hewitt was a great guy with fun and useful content.

[@ColumbusDixon]

Love someone who when they talk about their “ subject” admits what they don’t know about certain related subjects. Nerds. In the bestest way, it always makes people real to me on t’internet. 🙂

[@deant876]

I have been using and recommending the Opti- Lube XPD for several years. They show test results. But I was a little skeptical. Now I see that they are telling the truth. Thank you, guys, for doing the tests.

[@willb7975]

Echoing others - "FINALLY" an updated HFRR test with common additives available today. Coincidently just filled my "17 F350's 48 gal tank 24 hrs ago, adding too - Stanadyne PF and their Lubricity formula mix to my fill-up. Have to reconsider shifting to potentially Opti-lube or Archoil. Mostly concerned with lubricity and water demulsifier, along with cetane improvements - since the 6.7L has been on a Crossfit workout program for a few years. Can't say enough, for the time, monetary, and effort you and Lake put towards this testing for the population of diesel owners. Thanks again.

[@mikewalther73]

I use a different additive that wasn't tested,but firmly believe in additive. I fix gas stations for a living and people have no idea how poor the diesel fuel is at the majority of sites. Im in nj and we service over 300 fueling sites. Atleast 90 percent of the sites we service with diesel have serious fuel quality issues . I did a cold weather test for gelling and found polar power was the best and the cenpeco super diesel kleenz that i use was a close second. Temperature was very cold I believe 25 below zero and i left treated samples outside overnight. Thanks guys for testing.

[@ynotjf]

I was a fleet manager in California in the mid 90’s when they mandated low sulphur CARB diesel. Out of 50 delivery and line diesel trucks of varying age, we lost 20 fuel pumps due to the low sulphur lack of lubrication within the first year. Modern fuel pumps are designed to properly lubricate with less sulphur but those older trucks took a real beating. Of course, California air resource board denied any wrongdoing even though it cost California based operators millions of dollars. Based on that experience, I’ve use Diesel Kleen in my personal Duramax 2500HD just to be safe.

[@xsleptx554]

Fleet mechanic here. 75 peterbilt 379 tractors, 30+ dodge 3500-5500 trucks. I swear by power service products. I have been using them for 15+ years. Year round i use the white bottles. All of our trucks get this treatment. Most of our trucks go over 300k without too much issue. The tractors go much longer before and major service. These products work and are absolutely worth it. Even if using the less expensive versions it is extremely beneficial long term.

[@samfonov]

My dad swears by the grey bottle, My uncle uses some Canadian fuel additive you have to smuggle into USA I have experimented a few over 300k miles in last 3 years I have felt a difference in fuel economy and downshifting less with grey power service, and fppf lubricity plus fuel power Instead of making 4.5 mpg loaded at 100k+ pounds I have seen like 4.7-4.9mpg with those 2 additives Didn't see or feel improvement from hotshots(many 300 gallon test runs) Cat c15 engine.

[@kctrknman]

Do the Pete's have Paccar engines? I drive a T680 with a Paccar, its was in for injector cleaning about every month. A year ago KW put new injectors, fuel pump & rail in, it was good until a month ago. Any suggestions for a Paccar engine?

[@DCigar]

Of those 75 379 Pete’s… how many n14 red tops? Anywhere else to find info from your experience/shop?

[@redmesa2975]

379’s are almost 20 years old at the newest.

[@xsleptx554]

@ im sorry 389. Cummins X15 motors. A few cat 3406e in our roll back trucks.

[@arustydodge2111]

Thank you for this video. Started in 2001 with Cummins 6.0 used stanadyne. In 2007 power stroke 6.0 Hot shot secrets. Then 2015 power stroke 6.7 still my daily driver, and still Hot shot Secret, practically all of their products. Think after your research and video, gonna switch to the Archoil. Really don’t want a new truck. In my 60’s now and plan on this being my last and want it to last.THANK YOU👍👍⭐️⭐️⭐️⭐️⭐️

[@josephsouza9951]

I'll second the great video response. Being a diesel mechanic/tech for over 50yrs, now retired but quite active in the diesel community I was appalled to find put that Stanadyne Performance additive is nothing better than a glorified Snake Oil with anti Gell additives.I start using it in the early 80s when fuel transitioned to Low Sulfur and many mechanical injection systems were having issues.I personal been using it since 84 in my Powerstroke diesels, was personally thinking to switch to Archol but going to XPD which is the clear winner! I just subscribed, keep up the good work!

[@l.p.5259]

You ever tried trans fluid ?

[@MatthewC137]

I've been using Archoil for the last 7 years in my 2006 F250 6.0 diesel because it instantly cured injector stiction the first time I used it (among other things). Excellent stuff.

[@TheShalomstead]

I bought my first diesel engine back in April 2024, my Kubota L4060, and then ended up trading my ‘14 Expedition for an ‘04 Excursion with a 6.0 Powerstroke in October. I had done about a years worth of research before I was in the position to actually pull the trigger on my tractor purchase. All the Kubota forums recommended HSS EDT and I have been running it from day 1 when I dumped it on top of the full tank on the day of delivery. I don’t know if it’s made much of a difference but so far I’m impressed with the fuel efficiency and finally have gone through my first regen at 46 hours. Same story for my truck, since the day it hit my driveway I’ve been using HSS. The XDP stuff sounds pretty impressive! If it was cheaper I’d be all over it. My truck doesn’t have a CP4 pump or a DPF so it seems like it would mostly be money down the drain on that vehicle for me. Considering my HEUI injectors it would probably benefit me more to put that extra money into quality oil changes more frequently. I might consider it for my tractor because it doesn’t use up that much fuel and a single jug of that would last me a pretty long time! Thanks for the video and the useful information brother!

[@the__tinkerer]

I have run Optilube XPD with every fill up in my 2012 GMC LML since I bought it new. It has 175k miles and the original CP4 pump. My plan is to drive it another 10years.

[@samuelhatch8470]

Good luck. Cp4😂

[@singlsrvngfrnd]

@@samuelhatch8470 317,960 miles on my CP4. No luck needed, just lubricity.

[@all4freedom100]

I have used nothing and run off road diesel. 2017 power stroke, 313k miles…..no problems!

[@asjackman]

I have a 2013 LML with 168K miles, started using EDT around the 120K mark, may switch to XPD, but it's now sold-out everywhere!!!!!

[@singlsrvngfrnd]

@all4freedom100 running off road diesel is irrelevant. The only difference is the color.

[@sHoRtBuSseR]

I found an old independent study of diesel fuel additives in the depths of the internet some years back. It had XPD listed on there, and they had similar results to what you've found. I can send it to you if you want. That study is what got me to purchase XPD, and then your video backs it up as being true to helping with lubrication. I've been using it for about 4 years now.

[@bradical7772]

Please share

[@sHoRtBuSseR]

@bradical7772 I can't link it in the description, but I can tell you exactly what to Google. It's called diesel fuel additives lubricity results pdf and the website is jatonka

[@juliorox123]

@@bradical7772Just go to google and type in “diesel additive study 2007” and you’ll find it. That’s how I started using OptiLube XPD and it’s amazing.

[@Dark_Knight_USA]

Greetings: Is Howes in that test? How does it compare?

[@michaelwaldner8848]

⁠@@Dark_Knight_USAHowes is trash

[@TejanoLove88]

Thank you so much for this info! Been waiting for this for a while! 🙌🏽🙌🏽🙌🏽

[@RepairGeek]

Thank you very much!

[@johnsmircic6650]

Don’t know about all those additives, but, I had an old heavy equipment mechanic tell me years ago, “add some marvel mystery oil to every tank of fuel” bought a new 2002 f-350 with a 7.3 L, been doing just that,( and regular oil changes)428,000 miles later, she’s still rolling and I drive her every day……….👍👍🇨🇱🇨🇱

[@rhythminblues8]

I think it would be a cool test o see them anylize the results of the Ol snake oil additives, 2 Stroke oil TCW3, marvel (atf + I forget what additive) etc, etc…

[@infinityphotorob]

@@rhythminblues8 exactly. I am sure some stuff not good for stuff that regens. But for pre emissions engines does it add lubricity? 2 stroke, marvel, howes?

[@charliecharlie9787]

My dad had 25 bottles of mystery oil in the garage when I got his truck. I use power kleen

[@johnneil6653]

You can buy good motor oil on clearance for $2 a quart. In a pre emissions truck, which do you think adds more lubricity: a quart of oil or a few tablespoons of mystery additive?

[@nono-fn3zc]

A great follow up would be to test the XPD SUMMER formula. It is dirt cheap and scored fantastically in the old study that was published in the diesel place forum back 15+ years ago! I’ve used it since then and my balance rates and injectors are happy. It could be the bargain recommendation that people need.

[@Blitzkriegssii]

I started running Opti-Lube back in 2006 for my 02 dodge. It is still running the original VP-44 pump with 230,000+ miles with it tuned to 560HP.

[@3jeepfan]

FYI, Power Service has a winter additive to prevent gelling. Gray bottle is for summer, white bottle is for winter.

[@luminousveiws]

From the label they used the summer type. That's the biggest weakness of this video, they didn't control for hell additive.

[@vhp454]

Power service has a red bottle, 911, to help dissolve jelled fuel

[@davepetrakos475]

Thanks a million to both of you for the collaboration.

[@charlesr.aliffjr.4050]

The manufacturers of the various diesel fuel additives are not going to give consumers the unbiased chemical analysis truth…this is a certainty. Thanks to you and Lake for making the unbiased chemistry available to the public so an informed decision based on fact can be made.

[@AquaticLogic]

I had a Ford 6.0 diesel that started to develop sticktion issues and really hard starts one winter. I was a broke university student at the time. I added Archoil AR9100 to a synthetic oil change and it literally made my truck run like it was brand new. Saved my ass, and I will forever be thankful to them for making a product that actually works. Now that I have money and wisdom I drive a deleted 6.7 Cummins and life is really good 👍🏻

[@Markb8608]

I have been using archoil for the last 300k miles so i can speak from experience. I have a 2006 vw jetta diesel that has 425k miles. My engine and injectors are all orginal. At about the 175k mile mark, i started getting white smoke at startup and rough idling at traffic light. I used a gallon of lucas injector religiously for 2 years. I was driving 60k miles per year. It did nothing. Within 6 mos of using archoil. My injectors were completely clean. I have never looked back at the archoil products. All the other stuff is snake oil. I still have original cat and muffler!. Bill Hewitt at powerstrokehelp was the guy who turned me onto it. God rest his sole. Archoil was developed by general electric quite a few years ago for use in their standby generators. Support the vets at bill hewitt youtube channel.

[@RepairGeek]

I really miss watching Bill.

[@Markb8608]

Yup

[@aaron___6014]

But they all smell and look the same. Where did you hear that GE developed archoil?

[@AquaticLogic]

I had no idea Bill passed away. I owe so much to that guy. I had a clapped out 6.0 in university and with this help that truck got me through until I graduated.

[@RepairGeek]

​@AquaticLogic Oct of 23 he passed.

[@ericjiran1411]

I've been using Opti-Lube additives (XL & Boost) in my 03 Duramax (280K miles) for the past several years, ever since biodiesel was no longer available in my area. An online diesel forum commissioned a study similar to yours about 18 years ago, and came up with the same conclusion about XPD. Excellent video! Thanks for validating my choice in fuel additive products!

[@jamesleeson6680]

I started using XPD after reading probably the same article. It was done independently and even included 2 strike oil. Now XPD is about to get real expensive for us after this

[@anotherdumbwelder6219]

400+ on an 04 never ran anything just double filtered.

[@robertjohnson8572]

Very good video. Love Lake’s informative videos. He is a genuinely good dude for doing the work he does for people on the internet.

[@JosephRushing-z3v]

Thank You! I'm a new diesel owner of a 2019 6.7L Power Stroke. This information is invaluable.

[@DozerDaveD6T]

I have a 1990 Dodge Cummins and a 1997 Dodge Cummins both trucks have a 105 gallon transfer tanks, It was recommended by a pump re-builder to use Stanadyne, I could not find it at retail outlets, then I saw the big "C" on the Power Service Product I have been using it for about 4 years now. Living in Cali-fornication my Dodge's always lagged in power. My 1997 woke up the first time I used PSP, my 1990 the injector pump had been re-built and tuned -up before, no difference in the power, but no more black smoke on either truck, I always fill the transfer tank and add the 32 oz bottle. I find that PSP is readily available as well and being approved by Cummins, About $17.00 for the 32 oz bottle. Thanks for the great video.

[@johncu7007]

EXCELLENT 🥳 Video!! 🤯 I too used the Stanadyne, and was SHOCKED😱⚡️by the difference (in quality/performance) - as compared to the XPD, of course. So I too will be switching to the XPD. THANKS (again) to both you guys (Geeks 😉) for all your Great 👍 Work! (Keep it up👏🙌🤝👍)

[@Bottomfeeder94]

I would love to see a follow up video done on archoil AR6500 with a new batch. Also, it would be cool to see XPD summer blend tested. Thanks for what you guys have done for the diesel community.

[@sean5467]

Great video ! I have a 2002 7.3, and I've used opti lube for the last 10 years xpd and the summer blend. I definitely recommend both. No fuel system issues so far.

[@ColumbusDixon]

Thanks

[@RepairGeek]

Greatly appreciated! Thanks.

[@MisterRisk]

Thank you for doing this. Our daily drivers are common rail diesels and we intend to keep them on the road for as long as possible. They both have "disaster prevention" kits on them to protect the rest of the system from damage but we want to keep the pumps from failing if we can. I have been putting Archoil in these for as long as it has been on the market. The previous owner of one of the vehicles ran optilube exclusively. So I am feeling good about what we've been doing.

[@sesolar5854]

Thanks!

[@RepairGeek]

Thank you for the support!

[@OkinSold]

The EXACT video I’ve been waiting for.

[@BenjaminMedlock]

I couldn't agree more!

[@bduncan9724]

I use the Power service brand in my 2021 Ram Cummins. It does for sure add power. Only issue I have with this brand is that the lid to the bottles never seal. If the bottle tips over it will always leak and get all over the bed of your truck no matter how tight the cap is.

[@mikz86ta1]

Guy from Howes told me at a RV show, that's what they are Limited to doing. They can't use a good resealing cap. EPA shit regulations.

[@dieseldrax]

Over the years I've used all 3 of the middle products (Hot Shot's EDT, PS Diesel Kleen, Archoil AR6500), currently I'm running PS Diesel Kleen (1000:1 in the Archoil bottle for easy dosing). Keeping things clean and well-lubricated is the top priority but a lot of folks don't realize how important having sufficient cetane is. These HPCR diesels should be nice and quiet, if they sound like an old MB 240D when you start from a stop then you really need to start using a fuel additive to boost cetane because that is NOT good for the engine. The Duramax engines (2.8 and 6.6) have been suffering from cracked pistons for many years and I've speculated for some time that, aside from a bad aftermarket tune, these failures are due to low cetane knock over time causing fatigue and eventual fracturing of one or more pistons. Here's why I think that. The Duramax (and likely other) pistons are oil-cooled via an oil squirter that shoots oil into a hole on the bottom side of the piston and then the oil comes out the other side. The oil gallery runs parallel to the wrist pin between the piston bowl/face and the wrist pin. The piston face is thinnest at the bottom of the bowl right above the oil gallery and this is where every. single. piston. fractures, most times leaving a jagged hole where the thin piece of piston cracked and caused the engine failure. Upon removing the head it's not uncommon to see cracks forming in other pistons as well. A lot of folks as well as dealer techs, without any testing, claimed "injector failure" caused the holes but that's not the case. That was a false assumption due to laziness/lack of proper RCA. Which brings us back to cetane. If you're running a low-cetane fuel and hearing injection knock (and thinking that's what a diesel is supposed to sound like) then you're not doing your engine any favors, that knock/rattle is hammering your pistons. If you own a Duramax like I do then you should be running a quality fuel additive every fill-up. Not only will your HPFP thank you but you could very well end up preventing engine failure due to cracked pistons.

[@theoriginalrjt21]

Ran XPD in my 2020 Ram for 2 years due to the CP4 (CP3 installed June 22) and switched to Archoil just last year. No regrets making the switch.

[@mr2autoxr]

I've been using XPD for about 10 years in my '06 2500HD. Glad I made a good choice and stuck with it!! I buy it by the 5 gallon pail and that usually lasts me about 1.5 years. I don't drive a ton as it's not my primary vehicle.

[@kevinmatney2218]

I have a 2021 Ram with 3.0 ED. I use Hot Shot 8oz per tank full of 33 gallons, and have been very happy

[@timford5390]

Based on cost/benefit, I’ll be sticking with Archoil

[@Utah_Trail_Rider]

Buy Opti-Lube "Summer" It lacks the Anti-Gel but is Much Much cheaper to get the Lubrication and Cetane

[@jamescain9256]

@@Utah_Trail_Rider cheapest place to buy it?

[@rhythminblues8]

Thats actually a good suggestion, the winter blend fuel generally in most of the US solves the need for an antigel.

[@Utah_Trail_Rider]

@@jamescain9256 I buy a gallon of each ( XPD and Summer) about once every two years, Usually right from Opti-Lube's website.

[@jeffworsham8240]

@@jamescain9256 i buy it over the counter, straight from Opti Lube in Orem UT

[@ScaldedDawg]

Amazing data collection! Thanks for the work to help all of us! Can't wait to see more collabs between these two channels.

[@phillmckrakin2518]

Thank you for taking the time to do this. I have used power service for decades, might give XPD a try.

[@2bz2ranch45]

I'm an old "gear head" but my knowledge of diesel engines was very limited. Squeeze-bang was about it. What I so thoroughly enjoyed about your and Lake's exploration was I understood the whole process! THANK YOU from the bottom of my heart. I am the owner of a 2021 K3500 Duramax, my first ever diesel, and this video was superb! I have subscribed to both of your and Lake's channels.

[@PROFITDYNE]

Thank you, Andrew, like you, I just switched from Stanadyne Performance Formula to Opti Lube XPD. A real eye-opener!

[@rossbowman202]

I been using that for years in my TDI. I just ordered some more right before Christmas. It makes a noticeable difference. I used Power Service for awhile we I got my TDI. Runs much better on XPD. Thanks for the confirmation. Thank you both.

[@hdz12ez]

Good video, good channel! Not sure if you're familiar with Daves Auto Center KZbin channel, but he just had a customer with a 6.7 Powerstroke that had 900K on it before a lifer failed and wiped out the camshaft. There are actually two videos that he put out on it, one showing the original CP4 pump with virtually zero wear and the second showed the engine being torn down and inspected, also showing virtually zero wear. The customer was religious on maintenance and fuel additives, he also used an oil filtering system (can't remember the brand) and the results are amazing. It's all about the maintenance with engines, diesel or gas.

[@mattburnett7347]

The brand was an insane diesel oil bypass filter. 1 micron

[@gordonborsboom7460]

They did not say what the fuel additive was, although they mentioned a few times that one was used.

[@GhostSniper67]

Dave's Auto Center has become a commercial and advertising platform. Selling everything from flashlights, to additives, to manuals or anything else they can make a dollar on.

[@tmurph247]

​@@gordonborsboom7460 was probably Dave's secret sauce. They've been peddling it for the last 2 months. 😂 I'll stick with Archoil or Hotshot Secret EDT.

[@pbalerig]

Daves is silencing that guy from saying what it is. They don't want the real name of the fuel additive to get out

[@cowelk]

By the way, I liked and subscribed and used your link to purchase a gallon of XPD. I had been using Hotshot EDT for the last year in my 4 year old Wrangler. The fuel pump was replaced on a recall last year and I thought I should try to make the new one last. I did not have any trouble with the original CP4 pump in over 30,000 miles of use. I saw a video on KZbin where a CP4 lasted 900,000 miles on a guys long haul truck and he used an additive plus he changed his fuel filter at every 10,000 mile oil change. The engine was being rebuilt so they tore the CP4 apart to look at wear. The other reason I decided to buy the additive was fuel economy. I could tell a slight difference of maybe 1 to 2 mpg on my 3.0 L EcoDiesel. I am getting 23 mpg over the course of a year with 14,000 miles highway, city and off road driving. It will be interesting to see if an increase in cetane with XPD vs Hotshot will improve my fuel economy another 1 or 2 mpg in 2025. The gallon of XPD should last me almost the entire year. So, $100 for a year isn't too bad. Thank you for this information.

[@PowerStrokeTechTalkwARod]

Great video fellas!

[@jayrad017]

Arod Sup brother man!!!

[@jeffbonifield8981]

Thanks for proving that science wins again! I just ran out of Stanadyne and was about to buy more...time for a change! You are in good company there!

[@polskiogorki7019]

Whoch one you going with?

[@Dan-xk3de]

Outstanding job!! I have recently found both of you guys. Love Lake’s deep dives on stuff. I was a powerstroke tech for about 16 yrs and now work on industrial power sets. I’ve always either used powerstroke additive or power service in my 7.3 powerstroke. I’m going to the XPD now. Excellent info guys two thumbs up!!

[@LarryPritchett]

I bought a used 2022 GMC Sierra Denali Duramax in mid-2024. Aftermarket wheels and tires, Cognito leveling kit, and S&B Cold air. Otherwise stock, as far as I can tell. My first Diesel since a 52 hp VW Rabbit in the late ‘80s. Fuel mileage was surprisingly bad - below 14 mpg in 2/3-highway 1/3 city average driving. Based on a this video, I ordered a case of 24 - 4 oz. bottles of XPD All-In-One direct from Opti-Lube. Apparently many others had done the exact same thing, as I got nice informative emails that my order would take a little time, but my product still arrived more quickly than expected. That’s excellent service number one. Opti-Lube both 1) kept me informed; and 2) delivered exactly what they said they would, or better. The product itself, however, performed beyond all possible expectations! The video documented reduced wear characteristics. What surprised me was the increased fuel mileage. Almost 2 mpg average fuel mileage improvement. This stuff is fantastic! Calculating the extra miles vs. the extra cost of the additive, the XPD Red has reduced my direct fuel cost by 8%. That’s excellent service number two. This product works! This product works beyond all expectation! It would be hard to over-compliment XPD. I cannot remember being this impressed with a technical product. I am extremely satisfied.

[@eat_the_octopus]

I've got a CP4 pump in my 200k mile TDI from a 2012. I've been running standyne lubricity formula since 80k miles. Changed to 2 micron CAT fuel filter. The thing still runs like a top. I constantly check that little screen on the cp4 to see if I see any glitter so far nothing.

[@mrigger2500]

Project farm just did a good comparison and I'm switching to hotshot

[@farmingnodak]

​​@@mrigger2500 but that was mainly looking at antigel and if they had lubricity properties. Stanadyne has a separate formula for strict lubricity without antigel.

[@leathertech7893]

I have a 6.7 and literally visited the headquarters of XPD in Utah. Been using it for about 2 years now. Truck runs good. 👍🏻

[@mightymikee]

When I pump diesel into my truck, I use those metering bottle, pour the content into the pump nozzle opening then fuel up. No drip. You know it is mixed well all said and done.

[@NoblesTx]

So you pour the additive INTO the fuel nozzle 🤔 wat

[@mightymikee]

@@NoblesTx Yes, into the nozzle then into the tank. You must have old diesel tank. New trucks come with discriminator at the opening that plastic spout would not be able to push it open.

[@all4freedom100]

What the fu*$ are you saying?

[@larrycarroll3602]

I’ve been a Stanadyne user for many years. I’ve seen first hand it quiet an old tractor that had dropped a cylinder when LSD came out simply by adding it to the tank and driving less than 100 yards. Completely sold me. Also ran off the Schaffers salesman when it came to its anti-jell performance. This video has me second guessing my favorite. What we need now is the anti-jell test. This is the reason that forces us to buy additives certain times of the year, not just want to. Thanks guys.

[@TheRuralWorld24]

👍Great video! A ton of valuable knowledge. I have been using Power Service Kleen in farm equipment, heavy equipment, as well as trucks for years. Always felt like it made a difference but never was 100% sure. After watching this, I feel better about all the money I spent on it over the years. However, I am going to try some Opti Lube. It's more money, but if it protects an expensive engine, and keeps it going, then it's a no brainer. As you pointed out, it's money well spent. A guy can buy a lot of Opti Lube for a fraction of the price of a new injection pump, or worse, a new engine. I still have a few bottles of Power Service Kleen. I wouldn't want to take a chance and mix the two products, probably best to use them separately. Thank You!👍

[@PeterGoodman-nq7zy]

Hi, I am based in UK, common diesel problems here are frequent interrupted dpf regen cycles, diluted oil as a consequence, long oil service intervals which maybe responsible for worn out cam chains. Archoil, oilsyn and other additives addressed this for me by eliminating dpf regen cycles and saving my oil. The soot reduction and side effective of improved mpg is the main effect of the additive. I have also used the archoil catalyst additive to similar effect. I love you oil videos which align with my experience. A high reving track engine that killed Mobil 1 led me to think pao based oils that resulted in the engine revving more sweetly and negligible wear. I had similar experience with a two stroke kart engine. I have also used synthetic two stroke oil, designed for fresh water boat two strokes as a diesel Lubricant additive. It burns completely and smokelessly and hopefully help lubricate the fuel system.

[@Lukeaaaa]

I'm in UK and started using Oilsyn stuff and I'm amazed. DPF regens have extended which means the engine is making less soot saving all intake components including egr

[@MrCroky123]

I also use Oilsyn and I swear by it. I go for increased mpg and use Hybrogen. That stuff is incredible. You can actually tell the difference in idle engine with and without it. It also increases engine power due to a better burn and it's great for the DPF. Less regens. It actually is a fuel conditioner rather than an additive. Means much less deposit over time.

[@andrewfunk9167]

Would love to see Amsoil 4in1’s results!

[@RepairGeek]

Thank you for the support!

[@williamfrost9313]

Yes I’ve been using Amsoil injector clean and cutaneous boost for around 10 years. How does it compare. I’ve over 500,000 miles on it and no fuel problems, VW 3 liter, several Cummins and Duramax engines, also 3 eco diesel 3 liters.

[@williamfrost9313]

Cetane not whatever Siri wrote!

[@rsbreeze]

I've ran Opti-Lube XPD and mostly XL in a 2015 2500HD Duramax for 11.5 years and 100k miles. My boy has driven it the last couple years. Still runs great and never had injectors out of balance or spec. I run a lift pump too with +8 at the test port. I had to replace a DEF temp sensor, 9th injector, and nox sensor, which is common in those rigs. Would have liked to seen the Opti-Lube XL which is primarily for lubrication and why I use it to protect the CP4. Cost is not a factor to me cause I'm not a high mileage user.

[@bdubs6205]

This is perfect!!! I just bought a 2025 Silverado with the LZ0 and I’ve been looking into fuel additives. Was already subscribed due to the surface shield videos you made. Keep up the great content!

[@johnfenn3166]

Very thankful for this video. Ive been learning lots the past two years about being a diesel owner, and how to maintain/prevent substantial repairs.

[@scotttan6377]

Great episode ! Didn't realize how some specific diesel additives adds to longer life on parts. It's NOT snake oil . You need to see if OptiLube will sponsor your KZbin episodes

[@leevanruler119]

My brother advised me to use Power Serve (I have a RAM w/6.7L) and he was getting about .5 gpm better than previously with his semi tractor. I followed his advice and gained more than 1 gpm on my truck with a 5th wheel camper. Thanks for the discussion - it was very informative! Keep it going!

[@leevanruler119]

Power Serve also makes a winter blend for anti-gel.

[@lukevillareal6243]

I went to Amazon to look at XPD and they actually have results of the HFFR test. They show XPD to have a wear scar of 250 which is pretty close to what you guys found. They also have an XL product and claim that wear scar is 217. Would love to see that one and Amsoil tested. Thanks for the info! Love Lake Speed’s videos. I’ve been recommending his videos to all my car buddies.

[@txfieros]

Ditto in wanting to see AMSOIL tested. I used their oils for 20 years in everything and wanted to use their Diesel all in one additive after finishing some local stuff I bought (none of the ones tested). I’ve ordered XPD for now. Can’t go wrong I’m sure.

[@lukevillareal6243]

@@txfieros I have used Hot Shot’s Secret in my truck since I got it, but I’ve used Amsoil a couple of times. I keep track of my fuel economy religiously and it’s always better with Amsoil than Hot Shot’s so I’m curious to see how much better it is and how well it compares to the others, it’s just a lot more expensive.

[@txfieros]

@@lukevillareal6243 fyi. I did check Amsoil’s data sheet and the wear test shows 350ish on all their diesel additive products.

[@12974andrew]

yes test amsoil I want to know also since I burn thier oil so to speak. but otherwise opti-lube is my direction.

[@rhythminblues8]

Did you see the treatment dose on the Amsoil? 12 OZ for 30 GAL! I think thats roughly $9 per tank full, at least on my 16 Ram it is.

[@dannebrbrother8609]

Thanks for your transparency with Lake and yourself!

[@MrSkyentist]

I've been using archoil for around 60k miles I think? I run the heavier cleaner every 3rd oil change or so. Injection pump is quite a bit calmer with it vs without, and my mpg is solid, but not a signifier since my truck is very bad aerodynamically. Regens are still exactly in spec with over 100k miles on it too. Best thing about archoil is buying with a discount code, and in bulk. Costs around 7c per gallon doing that. Got a free small bottle I gave to my dad for his riding mower and tractor and those machines run way better with it. I know it's off topic but for any of you guys running diesel trucks/suv's/cars with emissions on them, get an amsoil bypass oil filter kit for it. It's expensive and will sometimes not have a vehicle specific kit for it, but it filters down to 2 microns. On my small diesel I can run their 90 series for 2 oil changes (draining it each change). Oil is still ink black but I still have almost no blowby compared to the vast majority of owners since it helps prevent carbon seizing of the rings. Other benefit is less significant wear particles circulating in the engine meaning your bearings and cam's won't gunk up if you stay on top of your oil changes.

[@richardhauserman5481]

I have been using Archoil for about 45000 miles. I have noticed about 4 to 7 mpg better than prior use. As winter hits, I use the winter treatment, which has anti-gel additves and have not had any negative issues. I drive a 2021 6.7 powerstroke. Very happy with my truck and its performance.

[@theglitch99]

I use transmission fluid in my old skewl 5.9... she loves it...

[@PabloGonzalez-ii4no]

I have an F550 to tow and RV, 122k and CP4 failed, I’m super gentle, never skip an oil change or fuel filters. I am converting to DCR pump and from now on never skip a good additive. Thank you for the video!

[@pbalerig]

Daves Auto is silencing that guy with the high mileage diesel CP4 for what brand fuel additive he was using.

[@franklogan494]

I noticed that too.

[@supersportimpalass]

Because he’s been pushing his own fuel treatment on his channel and he knows it will cut into his sales.

[@ubergreenguru5704]

I watched the video before it seems Dave's edited that part out... the Gentleman with the 900k CP4 pump mentioned that he was running the diesel additive from Doc's Diesel. Hard to catch in the Dave's video, but he mentioned "Doc's" when speaking about his additives.

[@franklogan494]

@@ubergreenguru5704 Good catch, I missed it.

[@pbalerig]

@@supersportimpalass if he realy was for the customer "change your oil im busy" moto he would be open and clear full transparency about him saying "i want full transparency and I want to be open and clear with the customers"...

[@MarAgt]

Question: The Hot Shots has 2 treatment options: 1:25gals & 2:25gals. Which would take it up to $.10 per gal. How would that 2:25gal dosing be expected to improve Cetane & lubricity? I ask because I bought some before seeing this video and don’t see as though I should waste it to buy one of the other products.

[@jacobgrube6467]

This is me too, just bought a new bottle of EDT and I will be using the performance rate until it's gone, then I'll switch to the XPD.

[@livinnash7693]

I have been using Hot Shots for 15 years in the same truck. Just use it and make the switch when you’re empty. You will be fine😏

[@brandonnorris3370]

This was my thought as well, because it would put Hot Shots in line with Archoil in overall cost

[@kgsstudiosfineart]

I bought my 2019 F250 in 2022. It was hitting regen at 325 miles. Now after a couple of years with Archoil, I'm going over 450 miles between regens. I'd like to know the minimum effective dosage as I hear you that more is not better. Thank you both for a great review.

[@DJFunGuy1]

He mentioned doing the minimum dosage rate that the Bottle states

[@vunetrixmonitoring333]

Thanks for your time to undertake this testing and sharing it with us.

[@Stevemax07]

You've done a great service to the diesel world. Thanks for your huge contribution to our society!!!

[@firemanbeebe]

This was a great video I just bought Hot Shot's Secret EDT at Walmart then came home and ordered Archoil and now thanks to you I just ordered XPD cuz I like the results so I'm telling my wife it's all your fault 😂 you both did an excellent job on this, I liked yours and his channel 👍

[@pollogarciaduran13]

So hot shots is bad? That's what I'm using

[@aaronfrench8322]

Amazing work from the both of you! Thank you so much and keep up the great work!

[@majordanggle]

Fuel Ox is by far the best fuel additive I have used on my 5th gen dually. I change my oil every 5k to 10k miles and fuel filters every time I change the oil. 94k miles emissions Intac and virtually no issues. Abuse and improper maintenance will ultimately shorten the life of your engine regardless of make and model of your vehicle. Great video by the way!

[@CitarNosis317]

I mean in Europe, if you have a modern-ish diesel (with DPF), you NEED premium or you NEED additives. The regular diesel will gunk up everything. Been there. Premium diesel is also better in lower temps, it won't jelly up as soon as regular diesel. - It messes up the fuel system and you will have some intermittent loss of power. - It messes with the DPF/regen, it clogged up my fifth injector multiple times. - It left us stranded before. - Managed to clog up a new TDCi DPF filter under 7k miles. I was using premium when I bought my car (used). No issues, it worked like a dream. At some point I figured I won't waste money on it and swapped to regular. It caused me months of headache, because I would never think it was the fuel. Once I went back to premium again, 0 issues. What's my takeaway? - Buying a modern diesel is just headache. Let's not even get into DEF fluid, even the DPF is horrible. Why did I buy it then? Because they said my car is "compliant". Well, it was, for like 2 weeks. Then they decided Euro 6 is the new requirement. Then they decided its like Euro 6 and whatever. - If I could go back, I'd just buy a pre-DPF car and just use regular diesel. No need to worry about anything, just drive. Maybe swap injectors every 200k miles and that's it.

[@V8Lenny]

Where in Europe you can buy regular and premium ?

[@CitarNosis317]

@@V8Lenny Germany, Austria, France, etc. It's either marked as Premium, or it has its own name like "Shell V-Power Diesel". It's "just" higher cetane than regular. But modern diesel needs it. Or you can go the additive way, both works. I find it easier to just fuel premium so I don't have to worry if we get a very cold morning or whatever. As I mentioned, we got stuck once before due to fuel. Thankfully the weather got warmed and we managed to put some premium on top but even then we needed dealer tools to clear codes. It sucked.

[@PonderingOne]

In most European countries, the diesel quality is far superior to that in the US. They have higher cetane and lubricity requirements.

[@V8Lenny]

@@CitarNosis317 I think in Finland we have only premium because there is no problems with fuel. Cetane does not help with gelling. We have that synthetic diesel from Neste but thats very expensive.

[@riotwarrior]

In my old 90 F350 7.3 i used Stanadyne exclusively. Now i have a Nissan Titan XD with Cummins 5.0 on a diet..have about a 122000 km on it here in BC Canada. I have used Howes and Another but cannot recall name. Bought a case of tin canned Amsoil diesel fuel additive and its my current additive. Would love to see Amsoil additives tested, heck ild send a can of this old stuff if u like. Bottom lone ill run what i have but once out, im XPD all the way. Really appreciate your collaboration with Lake. Thanks for a tremendously informative unbiased video.

[@agentstevehaines9164]

The stars have clearly aligned on this subject, as Project Farm just did a video on Diesel additives as well. (Pretty sure i requested that vid a year ago when i bought my Duramax) ((your welcome 😜)) Hot Shots Secret pretty much dominates and his lubricity test is a MUCH better score than what is shown here. Curious of the discrepancy 🤔

[@RepairGeek]

We did industry tests and actually diluted the additive with fuel. He did none of those things when looking at lubricty. Just because you get A result doesn't mean the result is relevant. Nobody runs their truck on 100% additive, so why test that way? I speculate his lubricty "test" didn't show any changes with the additive diluted in fuel so he used JUST additive to try to show SOMETHING...

[@smiley3303]

@@RepairGeekgo watch it. He added it to the diesel and a lot of the numbers are very similar. His was more focused on winter versions though. So I suspect that was the difference.

[@RepairGeek]

@@smiley3303 look closely: kzbin.info/www/bejne/gGq7dGd3f5djiKcsi=Cd7OK2s370FRSTT4&t=113 What you're saying is fuel + additive is suddenly brown. Road diesel usually has a yellow/green color. At the Lucas treat rate of 600:1, you're saying Todd added .067 ml to that 40 ml test cup to make the correct ratio. The color of the product in the tester is the exact same color as the product poured out of the bottle. This is true for every product he tested lubricity on.

[@smiley3303]

@@RepairGeek I see what you mean. He did add to the diesel for the freeze test I didn’t realize he didn’t for the west test. I don’t think that would matter being that diesel by itself isn’t good for the wear test but as always hard to account for a variable without a test. Thanks.

[@RepairGeek]

​@smiley3303 exactly, i don't doubt the gelling or "rescue" results very much at all. I would have snuck up on -38 and found out at which temperature each product gelled at so you could say lucas gelled at -10 rather than just saying it was frozen solid at -38. Nothing he did in the gelling test was seriously wrong. I just would have dont it differently. Nobody is perfect, myself included.

[@Bajatrvlr]

Like some of the others commenting, I too have been waiting to stumble across just this topic… Good job guys. I’ve also been having trouble finding straight diesel and not bio-diesel… VW tells me not to run bio-diesel that’s greater than 5%, everywhere here in Southern California is 20%. Velero is one of the few places I can get straight diesel. I’ve been using DieselClean for years now and I’m glad to know it hasn’t been in vain. I buy it by the case of gallons and put it in smaller bottles to dump in at fueling times. This is the first time I’ve watched you guys, it won’t be the last.

[@MikeyAlbertin]

Repair Geek and The Motor Oil Geek, thanks for the video and information. 👍

[@perrytilton5221]

I bought my '89 F250 with the 7.3 IDI. It was rough-ish, but I knew it wasn't going to be terrible to repair/replace myself. I ran some Hot Shots in my fuel and it boosted the injector flow and spray pattern, but removed all of the soot holding 3 of the injectors that weren't propperly sealed, and caused rough running. Replaced the injectors and the truck runs nicely. I still run additives because the pumps and injectors were designed for something with far more phosphorus.

[@andrewfunk9167]

Appreciate this effort! Would love to see Amsoil 4in1 in this comparison!

[@landscapingspecialist]

Perfect timing on the XPD. As the cold weather is here and getting colder. My hot shots does not have the anti-gel which I had ASSUMED it had 🤦🏻‍♂️so glad I saw this. Perfect timing. Thanks again 🙌🏻

[@ironmike7339]

Hot Shots makes edt with winter formula.

[@goducgo]

Been using Diesel Kleen in my 2013 6.7 Ram recommended by Cummins for years. This was recommended to me from an operator in Oregon that has 50 trucks in his fleet. 143k mileage and purrs like a kitten.

[@rbshort151]

Diesel kleen . Better mpg and alot more responsive.

[@scottbreckenridge6509]

I have been working with Lake for several years. Enough Said. I just ordered a bottle of XPD for my truck & Mahindra tractor. Thanks for the info.

[@V8Lenny]

Iron is diesel catalyst. Like Eolys used in PSA diesels to keep DPF clean.

[@TheBfor86]

Opti-lube puts the HFRR right on their product listings. Ive always questioned the number's validity, but this testing matches within margin of error. The interesting thing to note is that the Opti-lube summer+ blend is similar to Archoil in lubricity, but is closer to the cost of HSS, if you live in a warm area or want to save money in the warm months the summer+ seem like a good option as well.

[@johnnyturbo8460]

Here is another question. Do you think running diesel additives will effect or "clog" the adjusting turbo fins in a diesel truck with a variable adjusting turbo blade turbo like the Rams Cummins 6.7? I ask that because those turbos i mentioned do have issues with the fins getting stuck and killing the turbo actuator. Costing big money.

[@OtisFlint]

It's the opposite. More cetane = less soot and therefore less clogs. I do a LOT of towing with a deleted truck, adding an additive really reduces the soot on the back of the truck. Untreated diesel produces a haze out the exhaust pulling up mountain passes, treated diesel has nothing visible out the exhaust.

[@johnnyturbo8460]

@OtisFlint Thanks so much for the reply. The vains on my 6.7 Cummins got stuck and killed the actuator. I was wondering if it had anything to do with me running the Amsoil Diesel additive. Guess not. Back to using additives in my Diesel after watching this and reading your comment!

[@mountainsintomemories]

I have a tremendous amount of respect for Lake. He definitely knows his stuff. I don’t have a diesel truck, but I’d love to see a similar test on gasoline additives and some information on whether they’re worth using.

[@523maine]

Great video! Scary to hear about low sulfur diesel issues! I know you can test all the fuel additive out there, but I am surprised to didn't test the Lucas fuel treatment which seems to be one of the most widely used fuel additive and is relatively inexpensive! I've used Lucas in my 2.8 Duramax is it any good?

[@binghamgate]

Good video. Archoil is the best performance of severals types I've ran in my trucks. but I never heard any mention about Archoil winter blend. AR6500 is the summer blend and AR6300 is winter blend 1.5 oz per 10 gal and 3 oz good for minus 44. With Archoil I went from roughly 400 miles on a Regen up to 2000 miles using the Archoil and and increase of fuel mileage .

[@rowancockburn6156]

I add 1/4 litre of cheap, low ash 2 stroke mineral oil (not synthetic) for air cooled 2 strokes to every 3rd fill up, never had an injector or fuel pump issue. I have 500,000 kms on a 08 lexus 2.2 diesel, also my emmissions (c02 and particulates) are very low. I reckon it's good for the piston rings too.

[@SpezWend]

@rowancockburn6156 I added every fill up. I drove 150 000km with low smoke 2 stroke oil with 0 issues with engine or DPF. Dilution ratio 200:1. When I sold the w204, it was driven 300 000km. Highly recommend it.

[@zr1vetteman09]

Great job coordinating this collab with Lake. Keep up the good content and useful information. I’ve been using Hotshot (performance dose) for several years on my trucks and have noted smoother running trucks with notable improvement to fuel mileage and reduced regenerations on the DPF. The dosage per the amount of fuel it treats definitely has an impact on the numbers your independent testing identified. I image the hotshot EDT would’ve performed a lot better with the performance dose considering how concentrated it is. I’m not claiming it’s superior to the others, but it’s worth noting that 2oz of EDT goes a lot farther to improving fuel quality vs the others. It’s cool to see proof behind some of these claims these products advertise. Seems like the lubricity improvement per dose of treatment goes to the Archoil. I just can’t see myself buying the high dose treatment stuff and having to constantly dump +8oz of treatment each fill up. The concentrated doses like hotshot or Archoil are way more convenient. Maybe the performance does of EDT would’ve gotten close to matching Archoil even? Who knows, either way, thank you!