What has royal purple done to my engine? (Part 1)

How important is high grade performance fluids in your vehicle? Is it worth the extra cash to upgrade? I found out the importance by experimenting with a better oil for my engine. Will I be able to replicate the outcome? We will see in 500 miles.
Check out my other Royal Purple videos
Part 2:
• 500 mile break-in and ...
Part 3:
• Did Royal Purple ruin ...
Part 4:
• 1,300 miles with Royal...
Part 5:
• Do I still recommend r...
Help support the content you see by shopping using the affiliate links down below, which helps funding for future projects through commissions. Also consider donating to PATREON for early ad free access to unpublished videos. thanks for your support! videos. / overview
Follow us on instagram:
/ tenza_motorsports
NEW Merchandise now available!
my-store-11736...
O'Reilly Website:
www.oreillyaut...
Royal Purple:
click.linksyne...
ECS Tuning:
click.linksyne...
Amazon:
amzn.to/3utW16B
____________________________________________________
Production gear:
Camera used (Sony): amzn.to/3sNdS2l
Card: amzn.to/388tkhO
Audio: amzn.to/3qcXhU8
Tripod: amzn.to/3sR1Qoy
Intro song:
Track: JPB - All Stops Now (feat. Soundr) [NCS Release]
Music provided by NoCopyrightSounds.
Watch: • JPB - All Stops Now (f...
Free Download / Stream: ncs.io/AllStops...
Main song:
Track: JPB - All Stops Now (feat. Soundr) [NCS Release]
Music provided by NoCopyrightSounds.
Watch: • JPB - All Stops Now (f...
Free Download / Stream: ncs.io/AllStops...
#tenza #tenzamotorsports #royalpurple

[@TenzaMotorsports]

Thanks for watching! Check out part 2 kzbin.info/www/bejne/d37FlX2EjdqIbJI and part 3 kzbin.info/www/bejne/n6WyYXmEl7Z2es0

[@endowg]

Did u used 5w30?

[@ThePandasian34]

Honestly i just do what you do as well go with manufacturers specifications, my BMW uses LL-04 spec so i use the pennzoil Euro L 5w-30. But for my 22 year old nissan pathfinder i use the old-school trick of half a quart of ATF with a MOBIL-1 full synthetic every 3000 and adding the ATF every 2nd oil change

[@chief1972]

Rick Moises Do not put ATF in your engine!No manufacturer recommends this.It is not made to go in your engine.

[@timothymcinvale1174]

@@chief1972 it helps I have done this on two different vehicles over the past 20 years if you change your oil about 3 weeks after running Atf it will help with several different components in your engine but hey every body has different opinions on this matter so I say do what makes you happy

[@ThePandasian34]

Chief 1 you need to calm down because you are acting like i put 5 quarts of ATF into my engine. my engine oil is 3.8 qts of mobil-1 5w-30 and 0.5 qts of ATF every other oil change. My lifters in my pathfinder has been ticking for a year and my oil changes has always been at 2500-3000 miles with mobil-1 extended high mileage. Plus my pathfinder is 22 years old and barely about to pass 185k miles. As a former engine technician at a Chevy dealer i don’t think 0.5 quarts is going to be an issue as long as the viscosity isn’t altered severly

[@TheMoezilla]

What I learned from the comments...every motor oil on the market is the best motor oil ever.

[@gallopingalumphus5390]

Agreed, with one disclaimer that: "Even if you DO use the exact same oil as me . . . MY oil is still better than YOUR oil."

[@ghost-4230]

Gallopin' Galumphus no MY oil is better than YOURS

[@garymckee8857]

I just keep my oil changed with whatever name brand but I have an old Car

[@Dtt4]

O. It's a Snake oil.

[@rodneybrand8521]

@@Dtt4 my snake needs oil...lol..

[@gtg289b]

Royal Purple really is that good. I'm an automotive engineer and I was once responsible for getting a 300hp, 6.7L diesel engine to survive when it was cranked up to 550hp. We needed to do a lot of performance tuning but the problem was we couldn't get an engine to last long enough to get any really good data. We could only get an engine to last about 7 minutes at full power before it would throw a rod. Literally the only thing I did was swap out our stock (Valvoline) mineral-based oil with Royal Purple full synthetic. With that change alone I could get the engine to last over 500hrs at full power! Once we got the tuning dialed in it was my job to make all the necessary mechanical changes to get the engine to survive on "stock" oil. Those changes included changing the piston crown geometry, injector spray angles, piston cooling chamber geography, piston cooling nozzle targeting, oil cooler construction, redoing the oil filter lines, changing to a ceramic coating on the piston top ring, adding a phosphate coating to the piston skirts, and improving engine cooling, among other things. All to get the engine to survive on stock oil when Royal Purple was good enough by itself without those changes! That stuff is crazy good!!

[@flexjay87]

Did you try other synthetic oils as a comparison to RP ? If not, you have no idea if RP is the best or not.

[@__flocka__9176]

What did you go to school for?

[@jamalfranklin8700]

I 100% dont believe any of this. Try any other syn oils? Full of it.

[@biggopppp4xkashvillekris]

But can u use it in an older vehicle like an old skool car

[@brvfd822]

My two cents on Royal purple.... I run Royal Purple in my TDI diesel, that I purchased with 163000 miles on the odometer. Just from looking in the valve cover, I could see that the top end was black and had some noticeable carbon buildup on the head and between the cam lobes. The original owner had always used Castrol gtx on 3000 mile change intervals. I changed the oil just a couple days after getting the car home, switching to Royal Purple HPS, basically for its increased detergent and lubricant properties. I planned to extend my change intervals to counter the increased cost of the oil. After two changes, and sending a used oil sample in for analysis each time, I have noticed that the inside of the valve cover on my engine is now virtually spotless, along with the cam lobes. Also, the lab that analyzed my oil has said that the oil is capable of safely going over 15000 miles without any negative effects on its lubrication properties. Analysis has proven that my filter also is working well at 15000. So after doing this research on my own, I feel that Royal Purple is proving to be well worth the money. Also, the 3000 mile oil change doesn’t apply to today’s high quality oils. This is my experience... I suggest everyone use your own judgment in your situation.

[@gutierrezc8709]

What oil filter brand did you use?

[@jims.3987]

Removing carbon on a high mileage engine isn't always a good thing. Especially on a vw. Carbon might be the only thing holding that shit together. 😂

[@michealmerritt8306]

I’ve been using Royal purple for the longest time and I’ve notice and improvement with them the first month. My engine was running smoother and it just seems healthier then I ever was.

[@jayandrusiak]

This can happen if you’re over due for an oil change

[@bassin_the_mitten5477]

I recommend not using royal purple for extended periods of time. It is good to run it every now and then. Although the detergents are very harsh and can deteriorate your seals.

[@markgreen1215]

@@bassin_the_mitten5477 WRONG

[@markgreen1215]

@@bassin_the_mitten5477 That’s all I’ve used for years and it cleaned the top of my motor and made my vehicles run smoother I will never use anything but RP again

[@punker4Real]

@@bassin_the_mitten5477 you mean sludge sand blasting the seals .. if it starts leaking then it was the sludge keeping it sealed

[@rickcrusenberry7027]

I’ve run it in my Astro van for a long time. I change it once in spring after the cold weather has come and gone and once in the fall after the hot weather has gone. It has 245,000 miles on it. No issues whatsoever.

[@oldgreen100]

The cleanest engine I have ever had the valve cover off of was my Dad'a 3FE in his '90 Toyota LandCruiser. He is religious about changing the oil with Castrol 10w30 synthetic blend every 6 mo or 3000mi. His valvetrain was spotless. I dont think it's the oil brand so much as the maintenance routine.

[@TenzaMotorsports]

I've heard a lot of great things from that brand. I keep buying my cars used. So for the 10 years of use before me, i have no idea how they were maintained. I find myself playing catch up and doing reactive maintenance.

[@oldgreen100]

@@TenzaMotorsports Yeah me too. I dont think I would buy new because of the depreciation. Have had so many heaps over the years man and had to do catch up maintenance and expensive repairs when i needed cash the most. I think I finally have a good method of picking used cars - that is never more than 100k mi and try to look at as many as possible. If you read online, you can find some info on film strength and additive packages and etc that may be useful to you. I found out about Driven oil for my flat tappet Ford that way.

[@demonxslayer5]

I had a buddy who built high performance cars/engines. He ran royal purple through one and has never looked back. He said when he tore the engine down it looked brand new. Swears by it.

[@ragingmcqueen]

Maintenance is one thing quality oil is another. Castrol is great for common cars. Royal purple is a great cleaner on top of high quality oil. Great oil to put into an old vehicle to clean the valve train.

[@ZeroFX32]

You hit the nail in the head, change oil and filter every 3000 miles and even with the cheapest synthetic oil you will get perfect results

[@hewlett260]

My 4.0 Jeep ran great on Royal Purple. It had 130k when I got the Jeep. When I traded it in it had over 240k on the odometer. The Engine was pristine and after numerous cross country trips and off-road adventures the only I never had issue with was the engine. After the first oil change to Royal Purple, my fuel economy was 19 or higher. My Jeep was lifted and had 33's.

[@jaymanuelraida29]

What year was your jeep

[@aceforever001]

​@@jaymanuelraida29The 4.0 i-6 was used from 1987 through 2006. I believe it was in the Cherokee, Grand Cherokee, Comanche, Wrangler and the Wagoneer.

[@Iwillnotbepushed]

@@aceforever001 19mpg from a 4.0 is not too bad. Those are great engines but not known for their mpg.

[@miguelpaul1164]

Smoothed out the idle on my 1997 Lexus es300. Used fuel injector cleaner then got an oil change.

[@Autovisions]

I always use royal purple I found it made my engine run smoother

[@ArekThorne]

If you own a BMW, the only oil brands you should be using are Mobil 1, Royal Purple, Liquid Molly. I switched from Liquid Molly to Royal Purple about a year ago and everything seems to be running great.

[@TenzaMotorsports]

The car originally called for castrol. That’s what i used on it until Royal Purple. From my experiences so far I don’t think I’m changing from RP

[@ikeudechukwu5018]

I have used this oil for 15 years, and revved the heck out of my engine. The engine has 200,000 miles. Recently, the engine was being rebuilt to change internal components for higher performance. When the heads and timing chains were taken off, a 200,000 mile internals looked like the engine had no more than 120,000 miles. The engine was so clean internally that it was unbelievable what we were seeing. The cross-hatches that the engine came with from factory were still very visible after 200,000 miles. This is the level of protection Royal Purple provided while cleaning the internals of the engine.

[@Technie87]

Hmmmmm this needs to be tested by project farm someway. “Which engine oil has the best sludge cleaning properties” this way we know whos truly the best for the price.

[@constitutionalrepublican1611]

Ill put it in a 1943 farmall bn and ill let you know by next season if you comment back on here. Its a rough use tractor, used for logging and such it surely gets used.

[@FredTheLutinoCocatiel]

I'm sure they already tested Royal Purple go there look

[@deadly134]

It has been tested by him and it’s been proven that Mobil 1 has the best properties and royal purple is mediocre at best

[@chaseb7147]

He's got one

[@ElectroFret21]

AMSOIL stomped every other brand in the end.

[@jakethesnake1503]

I used RP in 3 engines and loved it. Ran DRIVEN DI oil in my WRX and kinda thought even higher of it

[@boostedmaniac]

A true reading of an oil’s performance is a used oil analysis.

[@stevienico452]

Spot on, analysis is cheap and accurate, full chemical breakdown of all metals and substances at particulate count and size provided.

[@BMW323ciDriver]

@@stevienico452 how does that work, and where you buy the oil report?

[@td6608]

Actually the only real true reading is how long the engine lasts...

[@tropicalco2339]

True but if the first couple of oil changes may not be an inaccurate indication due to it cleaning the old sludge out.

[@Blown460]

@@BMW323ciDriver Send it to the DNC, they're great at creating reports. Lol

[@dameagerbeaver7703]

I’ve ran Royal Purple in my VW 1.8T, for 230k now (14 years). It’s had a very strenuous life and still seems to perform as well as day one. I recommend ordering it in 5 gallon containers if you have a place to store it. ( pay closer to $5.35 a quart vs. $8.99+).

[@TenzaMotorsports]

Thanks for the comment!

[@jerryjohnson6093]

Hell yeah!!!! Just watched the verdict video too! Glad to see it helped and you will continue to use it!. I switched over after I flattened the cam in my 70s small block Chevy due to low zinc in other oils that's when I learned royal purple has the highest zinc count and I loved it! Glad to be of assistance! Btw this is the Jerry from the video haha!

[@TenzaMotorsports]

Glad you enjoyed the content. I really appreciate your knowledge on engines, this has been a huge game changer in my car hobby. Thanks for the comment!

[@jerryjohnson6093]

@@TenzaMotorsports any time man! Keep me updated on the projects!

[@TenzaMotorsports]

For sure man, see you around!

[@MrTheHillfolk]

Yea I use the hps in my ol vw diesel. New oil sucks for older cars because of what you said about the zinc and all that.

[@Bloodbain88]

You can buy small bottles of zinc additive, just dump one in every oil change. That's what I've done on all my older engines. Modern oil still doesn't contain the same amount of zinc as the old stuff did. Or else it would wreak havoc on modern emissions systems. (Edit) The bottles of zinc additive is only for pre 1989 engines with no catalytic converters. Keeps those flat tappet cams from self destructing. Royal purple is good stuff though!

[@terrytdriver]

Idk if its still around but i used to use this stuff called power punch. I did a set of head gaskets on an old v6 s10 pickup. I used this stuff as kinda an assembly lube on the valve train and dumped the rest in the engine. When i went back to retorque the head bolts after 500 miles . The rockers and push rods looked like new. I ran that stuff in every engine i had until i stoped seeing it on the shelves. Never had an engine failure with that stuff in it.

[@terrytdriver]

Also the good ole boys used to tell me if you have valve noise run 25% transmission fluid in your oil next time you change your oil. The high detergent trans fluid will clean and free sticking hydraulic lifters. But everything is over head cam now might clean some but not fix

[@88ranchok]

Royal Purple is great oil I used to use it in my racing vehicles two wheels or four wheels I believe it's what separates the difference between winning and losing

[@rottenapple8333]

👑 AMSOIL SIGNATURE SERIES 5W30 👑

[@naptownsfinest2345]

Hard to beat that stuff

[@rottenapple8333]

naptownsfinest2345 - WIX XP OIL FILTER & AMSOIL ALL DAY, EVERYDAY ON MY 07 CIVIC SI (206,664) MILES AND COUNTING ‼️🌴🇵🇷🌴😎👍🏽

[@SirCavemaninthewest]

I had drove over 1,000 miles from NM and when I touched down in IA I realize I went thru there driving another 300 miles remaining. with a blown head gasket. Supertech held well with all those amounts of abusive temperatures! My temperature gauge was a hair off the Red zone.

[@SilentPaul]

Been using royal purple for years. 0 issues.

[@toledojeeper2932]

Been using conventional Valvoline oil for years..0 issues

[@anonymike8280]

I've been using whatever for 50 years and I've never had a an oil-related failure. Recently, I realized, after all the to-do, I could have used 10W-30 in every vehicle I have ever owned with no consequences. My next oil change, I'm going to use no-name oil from the dollar store at 50 cents a pint (it does have the API seal) and an orange-can-of-death filter just to show everybody.

[@jonasthemovie]

Sludge is not doing any damage sitting on surfaces. But it does damage in the strainer, oil pump and filter. Switching to a cleaning oil dislodging alot of sludge might clog up the system fast starving the engine for oil.

[@AntonioClaudioMichael]

I been using royal purple for the last 8 years in my 2005 Ford excursion with the v10 had been working amazing no problems I do agree after the first 5 or 6 uses your oil will stop getting dirty so fast

[@supramkiv1330]

My 94 Supra n/a with 291,446 miles I use 4 quarts of full synthetic 5w-30 (whatever on sale) And 1 bottle of “LUCAS Full Synthetic Oil” its an oil additive (extremely thick synthetic oil almost like honey) $18 bottle. supposedly improves the compression in valves. Been using Lucas for past 8 yrs. To date ive had zero repairs or mods on the motor it’s original as the day I purchased it w/12k miles 1997 and 22yrs later 291,446 miles 2019. And it still kick butt !!

[@banburylitho4068]

3 of the mechanics I’ve spoken to on this topic have all independently said.. never use flushing oils or any detergent oils, flushes out crap into the guts of your engine..just change your oil regularly

[@robbinperers8526]

Change the setup! Today's modern engine technology has the engine actually seated level under the hood. A core problem with 305, 327, 340, 350, 351 and 360 engine setups in the 60's and 70's were the angle at which they sat in the frame. The rear oil ports in the heads and block always clogged because they drained most of the hot oil back to the oil pan as the engine cools from sitting. That is also the reason the rear crank rod bearings, push rods, and rear engine seals sludge up. The seated angle of the engine was notorious for clogging/gumming/glazing in those ports and contacts well before 100,000 miles. Take one of those setups from earlier years and see if rp/amsoil or any high detergent synthetic solves that problem and can keep it that way...clean and cooler. There has to be a way to keep the "winter coat" sludge build-up approach off of these internal parts. engines are not setup like they are today, today its easier. Even today those are still common engines.

[@zash008]

My dad used Royal Purple in his Harley Davidson Heritage Classic. Engine always had a slight rattle. Engine was taken down 3 times by dealer with no better result. He rebuilt it himself with same result. He then switched to Mobil1 and the engine purred smooth.

[@BillerBeemstar]

It’s was probably cleaning out all the carbon that was making the engine run normal. It’s like changing transmission oil of old cars. It just got used to running like that

[@forreststump11]

even clean engines burn valves and have ring wear. check the cylinders with a bore gauge.

[@robertmaybeth3434]

I had a 1988 Nissan Pickup with Z28 4 cylinder. I got it at 88,000 miles, changed the oil every 2500 miles without fail and drove it gently with a 4 speed manual trans. I used mostly penzoil, sometimes castrol and valvoline, sometimes synthetic but never exceeded the mileage. Did a valve job at about 140k when it burned an exhaust valve alright. Second valve job at 250K when i screwed up changing the timing chain, which didn't need it (the tensioner was worn to a rubber nub though) and bent a valve. I decided to do an in car overhaul because of the mileage (again, didn't need it but i only found that out after the parts were out). The timing chain, like new with no bow. Reused the pistons and the rod bearings since they were fine too. Changed the rings, since they were out (I didn't bother miking the rings but there was nothing wrong with them either, no oil eating, blowing or noise). I bought a ridge reamer but didn't need that either, there was no ridge at the top of the cylinders - at all. I honed the cylinders of course. Then put it all back together with great care, cranked it but wouldn't start!!! Instead of panicking, i thought for a minute, realized the distributor was installed backwards (shaft), fixed it, car started instantly. I drove the truck for another 50K, At almost 300K miles, and driving this truck into the ground really, it wouldn't idle so couldn't pass the GOT-DAMN SMOG... the guy looked at the smog numbers, which were just marginal for anal Caliornia smog checks, and told me to give up. Drove the truck away determined to fix it, but I got angry and revved the engine and the Got-damn distributor shaft broke...that was the end. I sold the truck to a pick a part. The guy driving the tow truck told me i ought to keep it! Told him I couldn't deal with it anymore and I already had a 2002 Camry to drive so, it really was the end. The yearly smog PITA was what killed this truck, NOT wear and tear.

[@GPSPORT71]

Robert Maybeth all that and broke distributor shaft? 🙄 Those don’t “break”., guessing other things ended that one.

[@rudolphguarnacci197]

@@robertmaybeth3434 Man that's a great story. I have a '95 Toyota T100 and finally changed the original clutch with 219000 miles all new York City driving.

[@thegatesofsleep]

I haven’t torn the engine apart on my bike (06 Kawasaki ZX10R) but I ran Royal purple in it this last season. Bagged the piss out of the bike, did a very long distance ride with it as well and when I went to change my oil it did come out dirtier than it should have in my opinion. I wouldn’t be surprised if it cleaned it out a bit. I usually run Amsoil.

[@85Stang331]

I always ran this oil in my race engine and I have to say motor was always clean.

[@robmartinez9900]

Royal purple is a really great product its kept my chevy 350 engine really clean with no issue whats so ever on my 1990 chevy stepside truck

[@Flyinghook]

Ive used a lot of different oils in my engine and have noticed some things. Castrol/ store brands are garbage for tight tolerance, highly tuned engines. My engine started running rough after about 3k miles. On store brand full synthetic, and the Jetta 2.5 I owned set a check engine light on Castrol full synthetic, which Volkswagen recommended. Mobil 1 and pennzoil platinum are both good and last the duration of the olm without rough running, and amzoil has the best noack volitility for direct injected engines to prevent carbon buildup and lasts the olm dostance. Royal purple may be good at cleaning out engines (mine was new when I tried it), but it doesn't last but 4 or 5k miles.

[@christopherwilson6527]

Adam Lesandrini oil wont bring on a check engine light or make it run rough. Unless your using a completely incorrect viscosity or more likely the engines got bigger issues

[@ldennis5153]

Royal purple is the only oil I use. I switched to it several years ago. I like the results. I use all the Royal Purple products that are available, transmission fluid, gear lube and so on. I have used others before. I have done my homework about this and im sold on it. I have been a mechanic for a long time

[@d.phillipsracing4981]

Purple power all the way. Years back i got my 5.0 up to 285 degrees. Replace the radiator it fire up no problem and still ran strong. Royal purple saved that motor.

[@gonad84]

Project farm did a really cool synthetic oil comparison. Amsoil won it and Pennzoil ultra platinum was a close 2nd.

[@chriscee546]

@bodd boward same

[@pablochavez9087]

Testing was unfair in a way. He matched up Amsoil's best oil up against Royal Purples lowest tier oil.

[@rhyno514]

@@pablochavez9087 yea I was saying the same thing , what if pennzoil went up against amsoil first and RP was on the other side of the playoff bracket then RP would've finished 2nd

[@bradleehill9662]

So full synthetic oils have detergents in them. This will break down this sludge and oil deposits. It isn't a good thing if you have a ton of milage and its a known fact that highmilage oils have all detergents removed to prevent the break up of the sludge so it doesn't plug sensors and oil galleys so please keep this in mind and be careful

[@curtism-w6b]

Synthetic oil is oil. Change it like you're supposed to and you'll be fine.

[@nawzy202]

That's like saying tires are tires they all the same

[@fizaraja2205]

curtis m well Said 👌

[@jimbuddabing557]

All I use in eng. Rear end.trans is royal purple and zddp additive,and we drive my 6 cylinder turbo car to and from the track , click off 9's and never ever left stranded.

[@conservativeamerica9655]

Well, I've used Pennzoil for 39 years and never had a problem with sludge!

[@SladesVWBeetle]

Conservative America That’s what I have used forever and I’m not young! Never an issue

[@130hengineer]

That's a dam lie.

[@jasonsimmons6684]

A lot of it depends on whether it's a detergent or paraffin based oil. Changing oil on time is important as well. I personally like royal purple and mobile 1.

[@TenzaMotorsports]

Mobil 1 testing coming soon

[@alejandroo260]

Best oil is pretty much Full synthetics brand thats up to the consumer...

[@ezrawaters6653]

100% synthetic is way better than Full synthetic. Examples of 100% synthetic oils are Amsoil and Redline. 100% synthetic oils can be almost double the price though

[@CplHicks-ob2hj]

Bone stock 01 Camaro SS 24'000 miles. Switched to Royal Purple in engine. tranny and rear end. on DYNO 10 more HP and 13 FT lbs TRQ to the wheels Difference. Make the Switch !!

[@BC08]

Royal Purple rebuilt my engine from the ground up. Amazing

[@TenzaMotorsports]

I wish that happened to me!

[@hamtalker2007]

Mobil 1 extended performance will clean your engine also, I have been using it for the last 2 oil changes, top end of engine looked like that oil gets dirty quickly still so it cleans as well

[@rajgill7576]

My old auto teacher told me 2 weeks before your oil change take a quart oil and replace it with ATF. Way more detergents and additives. Drain and do a regular oil change after and the results are similar

[@user-fn4co4cw1q]

I worked at advance next to shells testing facility. The guy who ran everything bought all his testing oils from my store. Theyre all good but have major differences. Qstate hands down best detergent. Synthetics are amazing oroblem os the zinc builds sludge after 3k. So people using synthetics past 3k negates benefits. Oil doesnt break down but dont gover 3k for optimal performance. Qstate hands down choice to run for cleaning up a neglected motor. Amsoil for wet clutches changed my bike dramatically.

[@LRSS2455]

I would like to see the results of this. I’ve ran royal purple in my truck since it was new. I have 235,000 miles on it now. The only thing I have is front and rear seal leaks. If I get the time to pull the motor and change the seals I will make a video. The motor has never given me any problems and the leaks are only minor.

[@TenzaMotorsports]

There is a part 2 and 3 to this royal purple series! Absolutely you should document your experiences. I would love to see what you find out.

[@nuyabiss]

Amsoil is probably the best oil, project farm does testing. Poyal purple is more economical. I use royal purple, noticed the first change after using it alot of gunk in it when I swapped it out for more royal purple. Well see how this next one goes.

[@alabaster4263]

Well?

[@TranTek]

Amsoil Euro is what i love and been using made a big different putting a lot of mileage on per change. Especially winter we get up in Canada Project did a great test, in deep cold here, it made a different

[@markkus1134]

Just add a quart of marvel mystery oil instead of a Quart of oil That will clean out your motor

[@TutorialPanda]

Any oil will be good asking as you change it when its at or before it's life. Ive only ever ran Valvoline in mine, buddy of mine swears by Mobile1 and another swears by Castrol. Side by side can't really tell the difference. Like another says, do a used oil analysis it will give you the best results. Clean oil, filled to the proper specs will always give you the best results.

[@mndlessdrwer]

Royal Purple kept my VW engine alive despite it being over a quart low due to a broken dipstick tube. If you're just taking possession of an older car or you want to keep your freshly rebuilt engine in like-new condition for as long as possible, I wouldn't recommend anything else. Would it be worth the significant premium for a standard road car? Probably not. Full synthetic oils are fine for most engines and even conventional oils will work just fine for low-power naturally aspirated engines. But if you really want the best, Royal Purple is my recommendation. The challenge for most people is that there are essentially zero chains of shops that will offer to use Royal Purple for your oil change, so you'll have to do it yourself or find a shop with an attached store that you can buy it from and have them use it for the oil change. So, is it worth it? Maybe. Depends on how hard a life you're engine has had or will have. For turbo engines making a lot of power for their displacement? Yes. For Rotary engines? No. For high-compression naturally aspirated engines? Yes. For ultra-high-mileage engines? Yes. For a leased runabout? No. It's entirely up to you as the end user, though, and if it's worth your time and money to find a way to get it in your car.

[@rebeloneal4592]

RP is an motor Oil that stands alone as the best motor oil I've ever used to clean an gasoline engine. Over my 40+ years I've never had an oil as good as RP halvine, valvline, is a awesome full synthetic that's better than any other oils on the market but RP is a huge higher step up...

[@concernedpatriot9314]

1,500 miles ? I have walked that far to get in my car. Do a video when you put 150,000 miles your already used car !

[@TenzaMotorsports]

What do you expect to see at 150k? if the oil cleans it in a few thousand miles after that it won’t look any better.

[@regal105]

Z-max cleans well too I did an oil change on a sbc with high miles and a lot of sludge and after a week I had to change the oil again because it cut all the sludge and was plugging up the filter

[@carlm2590]

I use QSUD and it does the same thing. Quiet smooth running engine.

[@ezrawaters6653]

Made by Pennzoil, so it’s great quality

[@hujimwa]

Best oil...the age old questions.... To be honest in use castrol in the cars and Fuchs in the bikes. Preference. If you change it every 2k miles you don't really need a high end brand. Fully synth is normally better bar motorbikes. All depends on useages but best thing to do is service it regularly..

[@mikemittens6492]

Royal purple is all I use. Got my hd2500 at 162000 first thing I did was change out to rp at 290 and all is good

[@bigdogstreetperformance6761]

Use the Royal Purple XPR... that is the best of the best!

[@TenzaMotorsports]

That is what I run now!

[@leethatsme1988]

But what happens with all the crud. It must run through the oil pump and get caught up by the oil retainer mesh ect. But these are great results. I might give it a try myself.

[@johnnyjj2009]

Cleans so well I needed new valve cover gaskets and a crank position sensor changed... Haha

[@josephamstutz9118]

Royal purple is a superior oil. But it is designed more for racing than everyday use. Meaning, you have to change it more often

[@shadyganley8877]

Only if your flooring it to work and back everyday

[@misanthrope4483]

I've watched full Dyno results with royal purple....it works

[@krzysiekv12]

Ive put motul xcess into my van (140k miles) and I think the same has happened as it developed an oil cooler leak after about 3k miles, I think it cleaned the gunk that had clogged the leak

[@mrburgermaster]

There are a number of quality synthetic oils out there. Just don't buy the crappiest conventional and you should generally be good.

[@Desertduleler_88]

I might try this oil just to remove the oil varnish from lack of oil changes from previous owners.

[@ronniebenoit7699]

The best way to flush an engine..... drain oil and filter, fill with diesel and new filter....run till it clatters... repeat one time and then add new preferred oil and filter... engine flushed!!!!

[@joshuahaynes2573]

@@ronniebenoit7699 hmm just bought a old 91 1500 Sierra v8 extended cab to fix up and rebuild. Is a manual transmission . I might try that .

[@gtibruce]

But if an engine is put back into service like the engine shown without any real sludge build up but more like the valve cover has been left off any new oil is going to wash the dirt deposits away into the sump and hopefully into the oil filter?

[@kinglangren]

I use whatever is on special. Never had an engine go out

[@wayneholder139]

I have used it on all my vehicle! Cleaned the lt1 in trans am and tpi in Chevy truck enough to blow out the head gaskets.. pretty sure they was about to go anyways and used it in countless other motor 4.0 ford and jeep also 3.0 Toyota several different gen 350ci Chevy best oil on the market

[@andgate2000]

Its got detergents in it. Just like many diesel oils.

[@janjoson3843]

Dude I use the "Purple" in my cars, which is my standard. Performance also increase, also I use premium KnN oile filter.

[@tedhernandez2394]

Hey Tenza Motorsports...Have you ever tried using VP? It's a gas treatment that once you put it in your tank and then fill up? It cleans for about 5,000 miles. A friend of mine turned me on to this stuff. He and his dad are long time dragster motor builders, and they use the stuff on their motors. I've also heard good things about this VP stuff when I researched the manufacturer of this product. Ever hear of the Englishtown Raceway Park, New Jersey back in the day? I was an avid visitor all the time. Anyway I'd like your feedback if you will. I've used a bottle of the stuff twice so far. I do feel the difference in the performance of my car. 2004 Nissan Maxima 3.5 motor....Excellent engine. And well taken care of. Thanks in advance for your info.

[@sachafernando3298]

You REAAAALLLYY want royal purple to be good at cleaning

[@TenzaMotorsports]

I REAAAALLLYY don’t care what oil it is that cleans engines out, I just happen to choose Royal Purple for my testing. You can clearly see the difference. If that’s not clear enough might wanna take a look at part 3. kzbin.info/www/bejne/n6WyYXmEl7Z2es0

[@MrSpaz12]

If it cleans like that then I'd be worried about continued use. Maybe use it every 10k miles? That's just my guess. I honestly have no idea, but like I said, I'd be concerned that it's cleaning so good that it could damage it.

[@craigerickson1910]

What happens with an engine that's "too clean" as you suggest? Would you not want a surgeon's hands to be "too clean" when they operate on you? Your logic escapes me...

[@MrSpaz12]

@@craigerickson1910 If it's cleaning that good then it would appear to have a lot of detergents. I can't imagine those detergents being good for the main bearings. But I could most certainly be wrong. I have the S54 which is already tough on the mains so I'm hesitant to use the RP. I wish someone with throw away money would run this long term in the E46 M

[@reactiontube7286]

All the debris coming off, would it clog the oil pump? And is it why your oil pump broke? There is also a screen on the oil pan pick up tube, which could get clogged.

[@TenzaMotorsports]

No, The larger pieces would either stay in the pan or get caught in the filter. When I pulled mine apart, everything in was in the pan was liquidized. No chunks. my oil pump didn’t fail.

[@jedadiahtucker2132]

I put nothing but RP in my 02 wrx from day one. Ran the crap out of that car for 160k. Body was falling off when I sold it but it ran as hard as it did new. RP gets it's rep for a reason

[@redfirefox3568]

Royal Purple use to be good till after 2012 when some Chinese company bought it and watered down the oil.

[@johnoneil6206]

Any oil is Good Oil as long as there is some in the engine... told to me by Federal Mogul chief design engineer for engine bearings . THIS is an absolute fact

[@TenzaMotorsports]

Thanks for the comment!

[@EthanCommins888]

I use RP HPS 5w30 in my N54. No issues and clean. I'm going to use 10w40 HPS for my Beetle turbo S.

[@TenzaMotorsports]

Thanks for the comment we like Royal Purple a lot.

[@EthanCommins888]

@@TenzaMotorsports I'd recommend you switch to Royal purple HPS for the better Zinc and phosphorus additives included. Although you can only find HPS online.

[@TenzaMotorsports]

Thats the plan!

[@melvinsprewel8287]

I use what my Favorite Nascar driver uses.. currently in the market because Jr Retired.

[@TenzaMotorsports]

What oil do you use?

[@andrewhanko2118]

I wouldn't use royal purple long term. It is a race oil. The ability to retain its viscosity over time sucks. I had bearing problems on a Honda engine at 75k because of royal purple.

[@JubeeHS13]

I personally use Brad Penn but I think any of your synethic oils will do the same thing as royal purple. Amsoil, mobil1 etc..

[@richardbrowne1217]

"KEEP USING ROYAL PURPLE!" "It has the same ingredients as Mobil1. I change my oil every 8-10,000 miles with Royal Purple. Back in 1986, the inventer and owner of Royal Purple had a 1986 Toyota HiLux Pickup Truck and he experimented with the oil and never changed the oil because it was synthetic oil. The only thing he did was change the oil filter every 5-10,000 miles and topped off the oil level. Just be careful having it in your engine in tempurtures 30 degrees and lower. The oil thickens up. Below 0 degrees it will turn close to molasses. Well use too. The oil has changed over the years and has improved for winter weather. I had a 2013 Dodge Dart and the Manufacturer says to use Pennzoil. I used Pennzoil in my 1988 Toyota P/U and it ran like it was going to seize up! My Dart did too! Pennzoil is the number#1 selling synthitic oil, but Royal Purple is the number#1 most durable oil sold in America. 5 more horse power using Royal Purple!

[@TheBuba1212]

My vette has 130,000 miles on it have used manufacture recommended mobile 1 and still runs like new

[@angelbaracuda1727]

Yeah usually does the job give or take 5 quarts up the can no lube required within 5mins I’m ready to go.

[@ricktaylor3748]

Yeah, I always put purple dye in my engine. Royal Purple will make a big block Chevy start using oil.

[@w-dad4040]

0:29 Lost Foam Casting process for the block. Cool! Or at least the head

[@donaldfee9101]

use a liter of xylene in gas tank for 2-3 tanks cleans every thing even erg valve ,best burnt carbon cleaner

[@rogerdavis9060]

I wonder if you’re using a custom engine design that the rest have yet to understand? Let me know in the comments below if you’re into custom engines that are yet to be fully in-production.

[@WADENSWAY]

I’ve always heard once you use royal purple to never switch back. I’ve never gotten a reason why though

[@youandiryan]

In my opinion I think the best oils are Royal Purple, Pennzoil Ultra Platinum, and liqui moly. I won't use anything else.

[@paveldalesssandro6920]

I use Mobil one on my classic did the oil change like couple of month and the oil is so clean never use purple before I always use the one lol

[@nextlevelgamez9243]

Penzoil Platinum High Mileage Full Synthetic in all 4 my GM vehicles from 1994 and 1995. They all are still running and have good oil pressure.

[@Mrrnobody]

"Royal purple is the best" amsoil walks up.."let me introduce myself my name is amsoil" #proventhebest

[@stewpidaso26]

you mean scamsoil

[@anthonyazais3541]

Junk oil . Horrible cold flow properties

[@ianjones1498]

@@anthonyazais3541 only when it is brand new, once you run it and it gets warm, it is much better. Watch the project farms KZbin video testing over it! Very informative, and a cool dude!

[@Mrrnobody]

@@anthonyazais3541 you are 100% wrong

[@NormanBoulder]

MOTUL enters the chat: Hi, we hear you want some actual hi-performance oil?

[@edwinlomonaco6754]

I think you need to apply the same test parameters but use different brands and kinds of oils. You could potentially see the same results by just using regular conventional oil. And changing the oil sooner.

[@TenzaMotorsports]

It’s really not meant to be a “this oil is better than that” video. It’s just my experience with RP. I agree that there are other oils that would do the same.

[@frankcobra6890]

I put RP in my 5.0 NEVER had a problem with the any moter oil till I used RP, one my lifter on the passengers side wouldn't pump up after putting in RP,I pulled it out put other oil in and no problems, 2 months go by and I put RP back in to see and it happened again ,RP is crap,never had a problem for 20 years of oil changes. IN TILL I PUT ROYAL PURPLE IN MY MOTER💩

[@Mallel92]

Royal purple killed my catalytic converters! Too much zinc in it that kills your cats. Got off it and just go to your local dealer for oil it’s cheaper too and a lot better than purple. I pay like $50 bucks for oils and filter.

[@Madds5150]

Shaffer's Oil, check it out! Great stuff!

[@Musica2013ful]

Maddison agree 👍🏽

[@brianorella6086]

royal purple will turn your motor purple. Chop/// Chop !

[@raulg705]

If I can afford it and it’s my car and it’s giving the results I’ll use it it’s worth it it’ll last longer but if you can afford it go for it it ain’t cheap

[@tigris4149a2]

I’ll never use RP. It breaks down fast. It is literally for use only for a session at the track and then meant to be changed right after. I’ll just stick to Mobile 1

[@scottsmith6571]

I got abt 5 more psi per first 500 miles vs Mobil 1 full synthetic . An the Mobil 1 rattled at cold starts rp doesn’t no matter how long I wait between start ups been a yr or longer before. Did this on 87 grand nationals an 89 turbo trans and an my 99 ss camaro that has 23 k miles now. An all have wix oil filters the best

[@docdildonica7515]

You don’t need to change your oil then drain it and change it again. Just switch.

[@TenzaMotorsports]

If your engine is dirty / full of build up, and you change to a high detergent oil. You’ll need to replace the oil based on color not mileage or time. This means you could be replacing the oil after just a few thousand miles.

[@docdildonica7515]

@@TenzaMotorsports that’s a misconception based on what sounds good versus what is actually necessary.