Will Thin Motor Oil Cause Engine Damage? Let's Settle This!

Many modern cars require very thin (low viscosity) motor oil to operate more efficiently. Newer engines typically have tighter tolerances between engine parts. Let’s see if lower viscosity motor oil offers the same level of protection against engine wear. We’ll also see of the thinner oil experiences greater thermal breakdown and evaporation.
I always buy all of the products tested to ensure unbiased reviews. So, thank you for supporting the channel.
Oil analysis reports: / 88760493
➡ Thank you for supporting the channel through memberships:
/ @projectfarm
➡ Thank you very much for supporting the channel through Patreon: / projectfarm
➡ An easy way to find past videos along with products tested: bit.ly/2FCrBpk A big thanks to Jim for putting this together.
➡ Merch: project-farm.com
➡ Click here if you'd like to subscribe: / @projectfarm
➡ As an Amazon Associate I earn from qualifying purchases.
➡ Products Tested In This Video (in no particular order):
Pennzoil 0W-16: amzn.to/3Bea68x
Pennzoil 0W-20: amzn.to/42kB8XI
Pennzoil 5W-20: amzn.to/41qbW0A
Pennzoil 5W-30: amzn.to/3MelNCl
Videography Equipment:
Sony DSC-RX10 III Cyber-shot Digital Still Camera: amzn.to/2YdXvPw
Canon 70D Camera: amzn.to/31b5Gy0
Azden Microphone: amzn.to/34d3DLE
Go Pro Bundle: amzn.to/3Ca0ZVN
This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results. Project Farm LLC

[@olliejohnson725]

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This channel is certainly useful and APPRECIATED!

[@leifnilsen6107]

Agree

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This channel deserves more subscribers.

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Mundane? These products are very interesting

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[@apuuvah]

True. And he does NOT waste our time. Dang! Condensed hard valuable info.

[@ProjectFarm]

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[@jcaleca60]

This man is phenomenal great job

[@animejanai4657]

@@ProjectFarm If you do another motor oil viscosity vs wear comparison, please consider making an equal parts mixture of 5W-20 synthetic and 5W-30 synthetic oils. If the wear scar decreases from that of the 5W-20 oil, but is also greater than the wear scar of the 5W-30 oil, then this empirically verifies that the wear rate of 5W-30 is not a fluke and that the wear rate is definitely better. Thank you.

[@evanderchan8475]

@@ProjectFarm keep up your great service... from Asia

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What I love about this channel is he gets right to the point and no cringe intro and long explanations that are superfluous, it’s quick, coherent and easily understandable throughout the entire video and you never skip a part because it’s everything you need to know in every second. Not to mention there aren’t any cringe sponsors and what not.

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i just wish he wouldn’t speak so fast and loud that’s just me tho

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No "Hey, KZbin!" No "Click like, subscribe, and ring that bell so you don't miss any of my awesome content!" So refreshing, he lets his excellent content speak for itself.

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I love how nonchalant this man is. He has possibly the most positive comment section in the entirety of KZbin in all of his videos and he always answers with a: Thanks! Never change 🗣️

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Thanks!

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That is a bot response.

[@dejandezman6139]

​@@matriximaster😂😂😂

[@thevalorousdong7675]

​@@matriximaster Stop leaving botted replies

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@@thevalorousdong7675 aint botted if you go down the section you'll find many different responses

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Nothing but content. No wasted words. No dead spots. And you sure can talk fast!! Don't stop doing what you're doing!!

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One of my top reasons why I love this channel so much. Time wasted = 0!

[@theamerican7080]

Good editing helps too.

[@ProjectFarm]

Thanks!

[@drippingwax]

When I saw that Jimmy Buffett passed away, I had my phone play "Margaritaville" while I got ready. I was in the shower when I heard some idiot talking, poked out my head, and it was an ad--after a 3-minute video, which had an ad before it. It was some young and fit guy telling me that I could answer a couple quick questions, learn my body type, and learn how to best lose weight. I answered some questions and he claimed that he just had a quick video to solve all of my problems--and talked for perhaps 30 minute. I got dressed, did 30 push-ups, and drove at least 20 minutes before the guy finally finished talking. 1. Carb cycling 2. Eat healthy fats 3. Do HIIT 3 times a week for 15 minutes 4. Pay him hundreds of dollars.

[@jimmio3727]

@@drippingwax How much wax are you dripping, my guy? This isn't related to the video at all...

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I love that you are straight to the point , no fluff. No sponsors. Just raw information quick as not to lose anyone’s attention span. You’ve built a great channel.

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He's like Consumer Reports for KZbin.

[@Techprep23]

​@@turn-n-burn1421and the best part is when you've already bought something and then he does a comparison video it's nice to get confirmation after the fact you bought a decent product

[@tommylitchfield3450]

@@turn-n-burn1421 Honestly, I trust Project Farm even more than Consumer Reports. You can tell a lot more about one man's integrity than you can about a company with lots of people. You never know when someone's biases might sway a Consumer Report article, or any other article, for that matter. You can see and hear an honest appraisal when you watch these videos. Just fantastic information!

[@tommylitchfield3450]

​@@Techprep23That's a very good point! I know that it sure works like that for me! I feel a little bummed out on occasion when I made the "wrong choice" because I didn't know as much when I bought whatever than after watching these great videos. And I feel all smart and stuff when I found out that my pre-purchase research and purchase choice turned out to be the best one that I could have made, or at least the best one that I could afford to buy. This channel is the bomb!

[@ProjectFarm]

Thanks!

[@comentariopolitico1014]

I just LOVE all the efforts and details taken to make all your tests. Kudos and keep them coming.

[@ProjectFarm]

Thanks, will do!

[@crazysunshyne]

Yes! I requested this topic. Thanks so much for testing this.

[@AlaskanFalcon]

As an Alaskan, I'd love to see the -40 oil put into the wear tester to see how they perform when put to work in extreme cold. If nothing else it'd be a great video to show the importance of winterizing your vehicle (Transmission heat pad, Oil pan heat pad, Block heat plug to heat coolant, Trickle charger/battery blanket). We tend to run thin oils here cause the winters are so cold. Fairbanks Area.

[@ProjectFarm]

Thank you for the video idea!

[@David-jt9nt]

im still waiting to see the power steering video. I live in the Montana mountains, and -30 isn't uncommon; then add on I have a leak, and I want to see how different power steering fluids handle sadly I don't have the money or power outlets so I can winterize my truck in any helpful way bc I cant go out and start it up every day due to gas prices

[@crandonborth]

Yikes I can imagine how cold it gets up In Alaska… I’m from the upper Midwest and luckily it still 95° here. 😅

[@Nevir202]

An interesting thought, but I think it would make essentially no difference. Ya it'll start out at -40, but the friction will heat it up FAST. It's not like you wreck your engine with a cold/dry start one time, it's doing it hundreds, or thousands of times that gives you issues. I guess you could swap the wear part to a softer metal and perform a shorter test, to try and compensate?

[@redsquarejay]

How do you survive up there? As a Canadian, I can get used to -30⁰C

[@grizz1108]

This fella puts a ton of time and effort into each of his videos. Very impressive. Possibly the best test shop in the world.

[@ProjectFarm]

Thanks!

[@R5555.]

@@ProjectFarm hey can you test the best product for stopping rust on the cars underside? Love your videos!!

[@richardmann3396]

And he doesn't even use a stunt double.

[@richardgordon245]

And his pouring is top notch .

[@1999Dorito]

@@R5555.would be a good video but it would need to be long term at least a year to re evaluate

[@dodgecummins6181]

I’ve set it before and I’ll say it again. Hands down best KZbin channel I’ve found. No long intros, no selling merch, just straight to the point in under 10 min.

[@ProjectFarm]

Thanks!

[@johnosczakiewicz9740]

Im looking at P.F. video's , on a Sunday morning !! Love the Oil-impics

[@PJ16pt]

Sure seems like the oil manufacturer added more additives to the 0w-16 to try and offset the increased wear of such a thin oil. Thank you for another informative test.

[@PetrolHeadBrasil]

Exactly!

[@michaelbassett5105]

That’s what Toyota uses and they are known for reliability and longevity

[@larrybe2900]

Unless the heavier rated oils stick to metal surfaces the heavier oil has a disadvantage when cold. With most wear taking place upon start-up the 0-16 has an advantage in this respect.

[@oneninerniner3427]

​@@michaelbassett5105 Honda uses 0W16 on some models I think I heard as well.

[@wobblysauce]

Efficiency is good when you own it, longevity is better for the next owner

[@coryernewein]

Friction reduction has seemingly lost to fuel efficiency when it comes to the purpose of oils. I still run "thick" oil in the summer and lighter oil in the winter, glad to know that lessons from Papa still hold up🤙

[@ProjectFarm]

Thanks for sharing.

[@shootermcgavin2819]

I lived in Ohio. I had an 85 Ford F250 with the 6.9 IDI diesel engine. Ran 20w50 in the summer and 10w40 in the winter. No blow by 👌🏻

[@coryernewein]

That logic checks out, I would be concerned about sludge buildup if you aren't really getting the engine up to operating temp for a sustained period of time. All oils do it, synthetic or conventional but synthetic seems to degrade worse in subpar conditions from what I've seen. Be well and make sure to keep your oil changes often and frequent...oil is cheap-ish while engines and repair bills are anything but🤙

[@keithwiebe1787]

I don't think "friction" as he tests it here really is how the engine sees friction. One thing he hasn't tested is "pumpability" when cold or hot. Probably way exceeds his method of testing for friction.

[@coryernewein]

I could be wrong but I believe he has created a "backyard" version of the actual tests conducted industry wide🤷 With that said, the ability to pump the goo around at various viscosity levels is planned out heavily by manufacturers...unless you have minus 50°c for a month and freeze your coolant all should be fine under your hood👍

[@muhammadnasir3347]

The best automotive channel for me, straight to the point, no click bait, no gimmick, no weird music 😎

[@ProjectFarm]

Thanks!

[@zenriderx]

6:25 yes! Thanks for letting people know this. Also the "S" that they have dropped off the end (10w30s) stood for Summer. Before multi viscosity oils folks would change viscosities for hot and cold seasons.

[@xXYannuschXx]

I remember my previous car (a 04 Seat Leon Cupra R) having such a note in its manual. It had the old oils in it you needed to change between summer and winter and the newer multi viscosity ones.

[@craigclu]

I'm retired but worked for a company that developed the micro-finishing film that most engine manufacturers adapted. There was extreme focus on the micro-scratch surface left by the finishing materials and very distinct to the design of a particular engine. There was much more engineering and research on this aspect than one might assume. When the manufacturer recommends a specific oil type and viscosity range, they have some well researched reasons for their recommendations. Modern, low-friction piston ring design also factors into what the manufacturer tells us we should be using.

[@ProjectFarm]

Thanks for the feedback.

[@masynvalentine29]

You said what I came to say.

[@DISOPtv]

EPA probably is the most reason for the low vis oil and high mile oil change intervals.

[@The-t3z]

@@DISOPtvexactly. Thinner oil gives better gas mileage. You’re trading off longevity for efficiency. The engineers only job is to build an engine that is more efficient than previous generations. That’s all they care about. They only need it to outlast the warranty.

[@802Garage]

@@screaminlead I was just going to recommend the Total Seal videos on engine surface finishes as well.

[@Sphendrana]

I love how clearly you speak, how little time you waste (see example: none) in getting the information down, and honestly, I can tell you really enjoy cracking these questions open. One of the best channels on KZbin period, not just by genre, but entirely. Keep having fun, I'll keep watching!

[@ProjectFarm]

Thanks so much!

[@FrankenDoctor]

I have to disagree. As someone with hearing impairment, his rapid speech is hard to follow. If I use the subtitles, then I'm forced to maintain a focus on the subtitles and lose most of the video. But I still love the channel. @@ProjectFarm

[@benjamincresswell3713]

Ever think about watching twice? I'm dyslexic, low IQ, ADD, hearing impaired & have poor eyesight so l replay stop and make notes so l can get the message. This is one of if not the best channels for information.

[@bechtoea]

@@FrankenDoctor With all due respect, I have hearing impairment as well, with my midrange that is human voice basically causing it to sound muffled. Mr. Project Farm's voice seems to work just fine for me and I have no issue understanding him. I know it sounds like Mr. Obvious but I try to keep videos at a higher than normal volume level as it does help with the comprehension. You can also find a playback device that allows you to play with the equalization.

[@mediocreman2]

​@@FrankenDoctorTry playing the videos at .75x speed.

[@waterboxer87]

We get the Reader's Digest version--informative, to the point, important facts, and a clear presentation. Well done. Three million subscribers and continuing to climb.

[@ProjectFarm]

Thanks!

[@justinsevier5558]

You're favorite and most trusted reviewer on youtube. I always start my shopping by seeing if it's something you've compared. How about doing TPMS sensors? How do aftermarket compare to OEM? Battery life? Accuracy? etc. Thanks for all that you do!

[@ProjectFarm]

Thanks! Thanks for the suggestion.

[@ABoojumSnark]

When you do oil tests it might be interesting to include the all-time best and worst performers on the charts at the end of each test (maybe give them a faded out color to set them apart). This would give some overall context to the small selection being tested.

[@ProjectFarm]

Thanks for the suggestion.

[@minotaurbison]

@@ProjectFarm I'll +1 this one, sometimes I would love to know what the all time best in category is so I can go buy the best.

[@gallimead]

Don't think anyone has ever commented on this, but the tight vocal editing, is always a plus point, and I appreciate it. Your videos are concise, informative, and still yet through.

[@ProjectFarm]

Thanks so much!

[@alexcarbone1222]

I never heard of 0W-16 oil before this video. But these tests and this whole channel are amazing.

[@tahsin28]

Well new yaris used 0w-8, you are just behind the times a bit.

[@waynetec13]

This is hands down the #1 most useful channel on KZbin. I've learned so much from you.

[@ProjectFarm]

Thanks so much!

[@StephenDeTomasi]

I'd argue it's the most useful for analysing oil and tools etc... But that's it. I'd give Kurzgesagt the prize for most useful overall

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@@StephenDeTomasi Kurzgesagt is extremely educational, but 99% of what they teach is not actionable. This channel gives education that makes an impact on my daily life.

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Your dedication to these tests are incredible! thanks for all you do.

[@ProjectFarm]

Thanks and you are welcome!

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Thank you and KZbin! Loved the video and all the information.

[@ProjectFarm]

Thanks! Glad to hear!

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I just wanted to take a moment to thank you so much for all you do for us. What a fantastic service you provide for us and I, for one, am eternally greatful!

[@ProjectFarm]

Thanks so much!

[@chubbyjohnson5480]

You're the absolute best at independent product testing. I work in quality assurance, and I find your DOE to be top notch. Thank you!

[@ProjectFarm]

Thanks!

[@died4us590]

Always a good show, and thanks for all the time, effort, and personal money used to do these tests. G-d bless everyone.

[@ProjectFarm]

Thanks!

[@LarryLaird-if6sc]

Your videos are amazing and like another viewer said all the time and effort you put into your videos is hard work. Thanks for comparing these products because they definitely save me a lot of money 😊

[@ProjectFarm]

Thanks and you are welcome!

[@markwatkins6882]

Great job, as usual !!! Always check out your channel for valuable info !!! Only run Pennzoil Ultra Platinum 0W-40 in my 2015 Volvo V60 T5 after watching your oil comparison and it runs like a champ !!! Thanks !!!

[@ProjectFarm]

You're welcome!

[@johng.4959]

Awesome test as usual! I still believe the CAFE requirements have a lot to do with manufacturer selection. Obviously, I would want a "thinner oil" in a very cold climate during start-up. However.... my 22-yr. old Buick calls for 10w-30 and I don't have any inclination to use anything else! Thanks for the tests!

[@Itrieditathome889]

I use 0w-40 even at -15°F, no problem whatsoever.

[@ohioplayer-bl9em]

I use 15-40 in the summer and 5-30 in the winter, both full synthetic. 320,000 miles and not a tick from the lifters and it doesn’t burn a drop. Leaks a bit but not enough to get worked up about. I have to top it off maybe 1 or 2 times between changes and I do 10k plus changes. And top it off means IT’s just touching the low line and I like it at the maximum mark. More oil equals better cooling from it.

[@RK-kn1ud]

I have used conventional/semi-synthetic 10w-30 in every vehicle I've owned in the last 21 years and have never owned a vehicle that didn't last 400,000 miles or more. I have done this regardless of the manufacturers specification. All of these vehicles succumbed to rust or driver-induced failure...no engine failed because of my choice of oil. That said, I changed my oil religiously at 3k or 5k miles (3k for conventional and 5k for synthetic). I also DROVE my vehicles. I beat on them and/or I drove them for significant periods of time to evaporate the condensation in the oil.

[@ProjectFarm]

Thanks and you are welcome! Thanks for sharing.

[@libtrs838]

I used 5w30 in -30f and it worked fine. It started a little slow but I think that was more battery 0w30 felt about the same. I agree it is all CAFE even 0w16 cars here recommend 0w20 to 10w30 in other countries. People try to say the engine was specifically engineered for oil that thin. If it was then the manufacturer wouldn't also recommend 10w30. Engine clearances have been the same for a long time. Tolerances have gotten smaller (less variation) and the finish is better but the actual clearances are about the same. Todd's new truck having half the oil pressure also supports this, same size holes thinner oil = lower pressure. Companies care about profit and they lose money if they don't meet CAFE numbers. If thinner oil reduces total engine life but gets a better CAFE number of course they will do that. Next year CAFE is 51 mpg cars, 36.6 mpg trucks and 45 mpg combined. For every 0.1mpg under those numbers they have to pay $5.5 per vehicle produced. Miss the number by 1 mpg and you make 1.8 million cars (Toyota or Ford) thats $99 million dollars lost. Wonder why they are looking into 0w8 oil? Longevity is not always or is never the primary goal.

[@vincentkowski8466]

Project Farm is a true America treasure ! Thank you Sir for these fantastic tests. You are a blessing. 👍

[@ProjectFarm]

Thanks so much!

[@moestrei]

World treasure.

[@mgcarr61camaro91]

This will be a video i will share ! Thanks for your hard work in making these tests👍🇨🇦🇺🇸

[@ProjectFarm]

Awesome! Thank you!

[@romanc.5074]

I was looking for this one, thank you sir.

[@ProjectFarm]

You are welcome!

[@gus473]

Always enjoy the oil tests! 👨‍🔬😎✌️ Would still like to see a sump pump showdown sometime!

[@ProjectFarm]

Thank you!

[@RRaucina]

Yes, sump pumps -Liberty and Zoeller for starters@@ProjectFarm

[@gus473]

@@RRaucina Wayne & Simers, too!

[@thegrizzable]

Your testing and thoroughness is second to none. Great work as always

[@ProjectFarm]

Thanks!

[@ZoxtorPK]

I always want to see such test results, thanks man!

[@ProjectFarm]

You are welcome!

[@bgood213]

Slow your voice down 🙏 please

[@alexbarna9098]

Love it ! Great job. I'd love to see a video on amsoil/ hotshot secret diesel oil and a couple of other common diesel oils

[@darylsmioth1904]

A two stroke oil shoot-out like synthetic vs conventional vs caster bean oil would be awesome to see!

[@billmalec]

Make sure the 'gum up' factor is included. Castor oils gum up power valves badly.

[@ProjectFarm]

Thanks for the suggestion.

[@joewalla8438]

It may start on fire. Somebody on KZbin tried olive oil and that happened.🔥

[@billmalec]

@@joewalla8438 all of those are in use now and have been for a long time.

[@johngalt97]

The smoke factor should be measured in more than one way. Two smoke FTW!

[@dawsonpolaris]

I love how you always explain the standards you are working against so every video can be watched as a standalone. Makes it easier to share the video with the folks I discuss them with.

[@ProjectFarm]

Thanks!

[@adrianrobinson7953]

Thx u so much I’ve been waiting for this review!

[@BUILTFORDTOUGH79]

You should have more subscribers than those mindless “ influencers”. You’re videos are thorough, and the normal individual would never be able to spend the money to test the unending amount of products you test weekly. Thanks man… love the videos.

[@ProjectFarm]

Thanks and you are welcome!

[@richardharris492]

ABSOLUTELY, THEY ARE HERE TO DISCREDIT REALITY

[@derekreynolds8307]

I really appreciate the time and effort you put into these tests, and your non bias of course. It's always a pleasure to watch your channel

[@ProjectFarm]

Thanks!

[@stg.pikapika]

Always a great video, love the breakdowns and simplicity for anyone to understand. keep up the amazing work man, thank you for another great video

[@ProjectFarm]

Appreciate it!

[@Todd66]

This channel should be considered a national treasure. not only can I not tell you how many PF videos I have watched, but I have watched MANY of them more than once. Such a good channel. Another well done video much appreciated!😊

[@Kgio-2112]

If you consider it, it is!

[@ProjectFarm]

Thanks so much!

[@BSGSV]

I believe Project Farm is recognized unofficially at least as the goto for product test results because of his scientific method, testing multiple ways, and objectively stated results.

[@biernase]

*International treasure Greetings from Germany :)

[@lovemycountry12]

Always appreciate your tests and results. Thanks

[@MikeM-tt5fl]

Great tests, straight to the point. Thank You very much.

[@ProjectFarm]

Thanks and you are welcome!

[@marigri2464]

Thankyou for that well put demo, for a better informed decision,

[@ProjectFarm]

You are welcome!

[@Weatherby406]

In extreme cold the oil getting there quickly is far more important than anything else.

[@bills6093]

I think a different low temp test should be added to represent the situation most people are in during winter, such as zero degrees F.

[@Dr-YouTube]

@@bills6093Did you watch the video?

[@bills6093]

@@Dr-KZbin Yes, his freezer is at -40F, a test which doesn't mean much to most of us.

[@TheBond4141]

But an engine block heater makes that a moot point as the oil won't be -40. Also it should still be coated from the last time it ran, unlike in the test where it gets cleaned between uses.

[@ItsKing32]

@@Dr-KZbinwhat hes saying is also test the cold oil from 0°F not just warm new and -40 because a majority of people arent going to see -40 temps where they live

[@duggydo]

Additives make a huge difference on wear. It would be interesting to also do a test with bearing material instead of, or in addition to, the test wheel & pin you are using. I'm pretty sure that is what oil companies tailor there additives to.

[@ProjectFarm]

Thanks for the suggestion.

[@Scottross93]

I'd also like to see it be done under pressure somehow, since this is how the engines runs.

[@jackmclane1826]

These pins are often made from a standard ball bearing steel. 100Cr6 or 52100 I think is the yankee name. ;)

[@duggydo]

@@jackmclane1826 yes, but that’s not what rod and cam bearings are made of.

[@davidpowell3347]

Valve lifters/tappets,cam lobes,piston rings/upper cylinder walls,also timing chain links/rollers. Ball pivots used under rocker arms and pushrod tips. Some cam drive chains and sprockets may be larger/better than the minimum practice,also some modern engines use "roller lifters" to try to reduce demands on lubrication but then there is the axle that the roller rolls on ! The oils are constrained by the fact that the EPA does not like a lot of antiwear additive(s) because of the idea that if the engine is burning a bit more oil than desirable the additive might poison the catalytic converter. I believe EPA has even found a way to spread that to Diesel engine oil requirements. So that obsolete SG rated oil from a few years ago may have had better antiwear performance under adverse conditions than today's oils although such standards as "GF-6" or "GF-6A" are an attempt to come up with oil that will offer adequate protection even with the EPA not allowing much of traditional antiwear additive. I believe the super long oil change distances being advertised by the car makers today are pushing the oil far beyond what is safe. I believe that the additives wear out. A broken in engine is easier to lubricate in my opinion than a brand new one. ideally the connecting rod and crankshaft main bearings are "floated" in oil most of the time that the engine is running.

[@kurtzspecial]

Great test! Thank you and congratulations.

[@bquade70]

Always great content, thank you! Lake Havasu 🌞 Az

[@ProjectFarm]

Thanks and you are welcome!

[@jimmotormedic]

Another great video. I'm old school and always thought a thicker oil was the way to go but I'm changing my thoughts a bit on the matter. I was always a 15w 40 guy in everything even small engines. I've never had an engine fail using it but sometimes colder starts were a problem. Then the 5w 40 diesel oils came out and I slowly switched everything to that. Boy did it make a difference in everything especially the diesels. I've come to the opinion that unless the engine is under maximum load and at high temperature all the time the thicker oils may not be necessary. Also oil pressure is an indicator of resistance to flow. So low oil pressure doesn't necessarily mean the engine is not getting oil. Engineering is constantly trying to improve fuel economy and I think that is a major factor, but also I think modern engines using thinner oils have a much higher oil pump volume to try to keep things cool. It's hard for an older guy to get his head wrapped around a 1.5 4 cylinder stock engine producing 250+ hp. Most all auto engines have oil coolers today and that says something. More power in a small package turning higher rpms and a turbo or 2 make a lot of heat and thinner oils flowing faster pick up more heat and carry it away for cooling . Sorry long winded but I'm always trying to learn and understand

[@tjm3900]

I think you will find most modern engines employ a coolant to oil heat exchanger, not just an oil cooler.

[@axeami1354]

newer engines usually have a cylinder that's purposely designed to be micro porous, it means they actually hold onto thinner oils but struggle with thicker ones, couple this with reduced friction piston rings, tighter journals , oil passageways and bore sprayers designed specifically for thinner oils to flow through them it makes it a bad idea to put thicker oils in them. Even though the thicker oil itself is technically a better lubricator when put in a modern engine it actually lubricates worse and can potentially even cause issues. Another thing to note is that a lot of new economy engines are direct injection which usually results in more carbon build up around the valves over time so using a thicker oil with less additives could increase the amount of carbon build up over time.

[@Trammael]

@@axeami1354 this all makes sense but then Toyota will specify 5w-20 in Europe and 0w-16 in the US for the same engine. If everything else were equal wouldn’t it make sense to equalize the oil specifications? Others reflexively scream CAFE but I’m not so sure

[@rotorhead5000]

You grasped a lot of things most struggle with, a lighter oil doesn't necessarily mean less protection, because oil flow plays a lot into it.

[@jimmotormedic]

@@tjm3900 exactly, it warms the oil in cooler weather. Also aids in bringing engine up to stable temperature. I was going to mention it but I figured I was a little long winded as it was

[@silvenshadow]

I'd love to see a video about the advantages and disadvantages of running very thick oils like 15w50 for extreme duty

[@willtoulan]

Disadvantages would be fuel economy and flow issues in colder weather

[@ProjectFarm]

Thanks for the suggestion.

[@ChrisPBacon-ok7ir]

I run 20w 50 in my hotrod and in the high performance engine in my boat. Both are only used in summer months. I use 10w 30 in my other two Mustangs.

[@gadgethunter5732]

I tried 20W50 in an old '79 Plymouth Horizon I had. The engine needed a valve job and was burning oil. One day the temp dropped and the starter could barely turn the engine over.

[@andrewgarcia3136]

​@@gadgethunter5732 thats what happened when I had it in my old BMW during the winter

[@riskybiscuit5594]

Always a great take away. Thanks PF 👍🏻👍🏻

[@ProjectFarm]

You are welcome!

[@tomelwich49]

Outstanding testing and thank you from a new car owner!

[@ProjectFarm]

Thanks!

[@czechmate6916]

I love your videos there’s no beating around the bush always straight to the point. I rely on your testing before I buy anything. Thank you brother for the honesty 💪💪🇺🇸🇺🇸🇺🇸🇺🇸

[@ProjectFarm]

Thanks and you are welcome!

[@brownp93]

Love these oil videos! Incredibly thorough! Wouldn't mind seeing more two-stroke comparison whether it's oil ratio or oil types at wide open throttle. Even some oil additives for decoking would be interesting to see!

[@ProjectFarm]

Thanks! Thanks for the suggestion.

[@woodzyfox4735]

So Oil SAE ratings are based on outdoors temp. I a bit to the North, my outside temps dont get below -15F i use 5w-20 year round. Also thanks to your videos i have seen the reduced ware on parts. Along with that stop oil leak one you did i went with the bardahl brand, less wear. my motor seems happy once more and no leaks! I also used your stuff for my Oil filter, Air filter and all kinda of stuff! love your work.

[@nickamarit]

I love your videos so much. Thank you for the great presentation.

[@ProjectFarm]

Thanks and you are welcome!

[@brianhua8226]

I’d love to see another motor oil showdown!

[@volvo09]

I love the oil tests

[@ProjectFarm]

Thanks for the suggestion.

[@giggiddy]

Love the channel but the oil stuff is pretty much beaten down. Hes probably done a dozen over the years and you can only test so much additives and hot/cold viscosity.

[@perniciouspete4986]

​@@giggiddyDo maple syrup, then.

[@fidelcatsro6948]

10w40 versus 20w50

[@anandchundi6805]

Miss the oil test videos. I know you can only test so much so many different ways but glad to see another classic from you Project Farm. Love the oil test videos 😂❤

[@ProjectFarm]

Thanks!

[@darianthompson5975]

Have you heard valvoline's new oil's claim to "restore pistons to factory clean" and protect them. That's a bold claim. Would love to see how they are against your top 2, amsoil and pennzoil with standard mobil 1

[@ProjectFarm]

Thanks for the suggestion.

[@Funkydood]

Just love your tests, sir!!!

[@ProjectFarm]

Thanks so much!

[@LacDole]

Toyota is now using 0W8 in the new hybrid engines, BMW is also using 0W12 is some of their new ones too. Crazy! Even more important to keep the oil fresh in those engines!

[@ProjectFarm]

Thank you for sharing!

[@riba2233]

can't wait for 0W0!

[@herrkulor3771]

If they are designed for it, it should be no problem. Bigger bearing surfaces and smaller clearances.

[@nunninkav]

Just pour water in the crank case at that point.

[@ProjectFarm]

Thanks for sharing.

[@victormuller2394]

I love all your videos it’s definitely helped me make some buying decisions in the past. Just a suggestion though I’d love to see you add the bearing test with the cold oils to the videos. Best way I could think to simulate starting your car in the cold of winter and letting it warm up before driving.

[@ProjectFarm]

Thanks! Thanks for the suggestion.

[@davidpowell3347]

The high wear rates in a real world engine when it is cold are likely due in part to the presence of condensed water and liquid fuel removing some of the oil film from engine wear areas. Especially the upper cylinder and piston rings. @@ProjectFarm

[@navaneethakrishnans1299]

Your efforts are incredible sir, you have rightly pointed out the practical reason which is shunned by advertising.

[@ProjectFarm]

Thanks!

[@semperfipar1299]

Great test. If you could pump the oil across the bearing in the wear test may be more accurate when testing different viscosity oils. I noticed the thicker oil did not flow very well in the temperature tests so I had to wonder will it make it to the bearing surface at the initial engine startup?

[@putster98]

Would love to see a comparison of oil filters. Keep up the great work!

[@ProjectFarm]

Thanks, will do! Thanks for the suggestion.

[@dimmacommunication]

​@@ProjectFarmDon't forget the cartridge style filters for us Europeans, some ford like the F-150 use them too.

[@BrianRaby998VL]

I do learn some valuable info in every video. No matter what the subject material is. . Always great videos..👏👏👏

[@ProjectFarm]

Thanks! Glad to hear!

[@user-ui4vv4ty4b]

Thank you for the education

[@baldguybasics7584]

You always do such a thorough job in your analysis. I especially appreciate the quality of information you produce in your reviews. Thanks!

[@ProjectFarm]

Thanks and you are welcome!

[@qvb1201]

Hey Todd, have you thought about doing the bearing test AFTER freezing the oil? It would be interesting to see how each oil performs on a bearing when frozen.

[@lexluthermiester]

I've wondered that. The thing is, once you actually get to the testing part, the oil has warmed up. You've got a good idea, but it might be difficult to test.

[@ProjectFarm]

Thanks for the video idea.

[@TheCAD66]

5 gallon bucket and some dry ice could help keep the oil cold while set up takes place.

[@lexluthermiester]

@@TheCAD66 That's a good idea!

[@Jetmech1781]

​@@TheCAD66 Just put the oil directly into the test cup and freeze it. Go from the freezer to the testing rig.

[@sohaibyounus]

Thank you for the hard work man, can’t imagine how tedious it is to do all these tests!

[@ProjectFarm]

You are welcome!

[@dartagnan1954]

We care owners really appreciate your work, thank you man honestly.

[@ProjectFarm]

Thanks and you are welcome!

[@hassanhajjhussein3945]

Dear Project Farm, Thank you for the informative videos that have real world application. If I may suggest the following: 1. Calculate the weight loss due to evaporation as a percentage of the total initial weight. 2. Weigh the pins before and after and calculate percentage lost due to wear. I look forward to many new videos.

[@ProjectFarm]

You are welcome! Thanks for the constructive feedback.

[@millzzz6923]

This dude is on point with his reviews/analysis, always popping up on my feed I’m late to sub but you definitely deserve it bro 💪👍

[@ProjectFarm]

Thanks! Thanks for watching and subscribing!

[@konrad7492]

You can not appreciate this mans attention to detail enough until you've seen hundreds of videos trying to be scientific but failing miserably. No 'whats', 'ifs' and 'whens' were left behind. The questions posed are always answered and in a short and to the point manner. You, Sir, are very appreciated. Thank You!

[@ProjectFarm]

Thanks so much!

[@vueport99]

Awesome work as usual!

[@ProjectFarm]

Thanks!

[@CrimsonStarCarnage]

I'm just glad you specified to stick to the recommended oil per car as my dad failed to do that in one of my first truck and ended up clogging up my oil pump and the pumps intake screen because the oil was to thick and started sludging up within a 3000 mile range

[@ProjectFarm]

Thanks for sharing.

[@cooldaddyslick6869]

What were the grades?

[@justinf1997]

Thanks for another great and informative video as always. My dad has a GMC Sierra with that same engine with about 220k miles and it’s still running great. Hope yours does as well!

[@ProjectFarm]

You are welcome! Thanks for sharing.

[@damnyiffers]

Great to see someone finally put evidence behind the anecdote. Sacrifice a tiny bit of fuel economy and get a FAR longer lasting engine. I run 20w30 in my Ls1 statesman and it's got over 500,000kms on it. Doesn't burn oil, never smokes and has never been rebuklt

[@ProjectFarm]

Thanks!

[@steve8803]

@damnnyiffers oil weight is just one factor. There is also how it is driven(harsh winters? Hot summers? lots of stop and go city driving? Lots of highway driving? Lots of idle time or very little? Etc), and oil change frequency.

[@AG-sx9ws]

@@steve8803 oil weight is by far the most important factor for conventional engines which do not specify 0w16 or lower. once you get into 0w16 the viscosity is not the most important consideration, bearing surface treatment technology reigns supreme.

[@erichildreth7562]

Thanks for doing these tests and it is nice to know that 5w-30 is a good oil to use and that's what GM calls for. Great stuff indeed!!

[@ProjectFarm]

You are welcome!

[@gregrobsn]

Great test. I never run a 20 weight in a turbo charged engine but that's where the manufacturers are going because of CAFE averages. I realize you have to tell people to follow the manufacturers recommendations because of the liability issue but they really don't care how long your engine lasts as long as it makes it past the warranty period. VW had a 7 year or 70 thousand mile warranty before they switched to 0W-20. Then they dropped the warranty to 4 years or 50 thousand miles. They wouldn't have done that unless they don’t have faith in the oil they're recommending.

[@tech29X]

Exactly what I was saying yesterday. Glad others are catching on the gimmick. Also don't trust the engine oil life indicator light. Just use full synthetic engine oil and change it at least twice a year even if you don't drive over the mileage limit.

[@ProjectFarm]

Thanks! Thanks for the feedback.

[@gregkimura5906]

VW has a 6/72K warranty for only 2018 and 2019 model years. They did it to help potential buyers feel good about the company again. Remember that they got caught cheating on their diesel emissions. They were fined and had to buy back cars from their customers (or provide other remedies). It had nothing to do with 0W20 motor oil. If you look at the reason VW motors fail, it's not for lack of lubrication. Most times it's due to overheating. Their cooling system is overly complex and there are many places a coolant leak can occur. I've blown up two 2.0L VW motors in the past 4 years. Coolant leaks and runs low, then the motor overheats. Of course not temp gauge, so by the time the dummy light comes on, the motor is cooked!

[@alouisschafer7212]

Eurocars need a 30 or 40 weight period. Their engines are not build for thinner oils.

[@jeffrobodine8579]

@@alouisschafer7212 5W40 synthetic is recommended on most newer European cars, or at least it was.

[@Mastr-Tech]

Thank you for making this, it was very informative. I can’t believe that the thicker oils had better wear results.

[@fidelcatsro6948]

Imagining 20w50 oil as a bulletproof vest ..🤔

[@ProjectFarm]

You are welcome!

[@billc7211]

Why are you surprised? Thicker oils should have better wear results.

[@F-Khan491]

Wow, so much information .. thank you sir !

[@ProjectFarm]

Thanks and you are welcome!

[@emm8485]

Insightful! Very nice video. Comical on the race section, LOL!

[@aboy467]

It would be interesting to see a comparison between some of the newer "Hybrid Engine Oils" (Mobil1, Valvoline) compared against their "Regular" variants. Maybe add some tests with impurities/fuel dilution to see how they hold up? Always love your content!

[@ProjectFarm]

Thanks! Thanks for the suggestion.

[@mikedelcaribe7422]

​@@ProjectFarm Could you test silicone "oil" in place of crank case oil?

[@seandaugherty9171]

@aboy467 I'd like to see this as well.

[@jeffreyremington5633]

I love the content you make. Keep up the great work.

[@ProjectFarm]

Thank you!

[@jgarcia2305]

A lot of important info in a short video. Perfect!

[@ProjectFarm]

Thanks!

[@Driver-UK]

Thanks for this comparison from Manchester England 👍👍🖐️🖐️

[@ProjectFarm]

You are welcome!

[@pi1797]

As shown on the bearing test the 5W-30 had the least amount of wear. Protect your engine. The only reason the 5W-20,0w-20 and 0W-16 exist is due to the EPA push for higher mpg standards. I had relatives working at auto factories that saw the EPA reports mandating it.

[@peejay1981]

I was wondering about that. My 2014 Toyota Prado lists a range of oils to use given the max/min temperature, and you can basically use anything when in the range of 0-40 deg. c

[@Dankboi420]

I believe hybrid vehicles especially plug in hybrids require thinner oil. Since the engine is not always running, thinner oil flows better at lower temp

[@sleepyheadz]

I have a question though. Does engine wear happen mostly when cold starting? And if it is so, what kind of tests would reflect the effects of viscosity on engine wear? An idea comes to mind, start/stopping the wheel 100 times without pre-oiling them. Would that be more reflective of real world circumstances?

[@williamromine5715]

It only makes sense that a thinner oil will provide less protection from wear. I always used 10W30 (I'm 81 and pretty set in my ways), but I have never had car that called for these thin oils. My vehicle is a 1995 Jeep Grand Cherokee with the straight 6 cylinders. It has 240,000 miles on it and I have only used 10W30 in it, which is getting harder to find.

[@ihopethiscommentisntabusiv4670]

EPA doesnt give a damn about your engine, if you need to buy a new one is more money (and taxes) for the government

[@todddubler2091]

My last oil change on my 2016 Silverado, I mixed 0w-20 and 5w-30. The truck runs noticeable smoother. Next time it will be all 5w-30. Cold flow isn't a consideration as I live in the desert of Arizona.

[@danionescu988]

If the car is older, you can use 10W40 in hot climate

[@wailingalen]

I thought about doing the same on my JL wrangler... just to be safe.... After watching this video and forums.... My first oil change is coming up at 1500 and want to give it a head start on engine life by doing an early first change. And I live in Florida so it's rarely frigid here maybe a couple months of below 45* nights

[@mm-jx7gf]

@@wailingalenPersonally, my opinion on a new vehicle is to stay with the oil viscosity recommended by the manufacturer and what is says in the owner manual. Sometimes manufacturers will list more than 1 viscosity based on temps and usage, but usually it is just 1. If you use an oil that is not recommended and you end up with an engine problem under warranty, the dealer will void the warranty. And unfortunately today, manufacturers have more problems with new engines than you would think. Maybe you don't want to wait until the warranty is over, but it may be good to wait for a year or 2 and/or 15,000 miles or so... just to make sure. Also, if you can I would stay with the winter grade and only increase the grade for the hot weather viscosity. In other words, if it says 0W-20, think about 0W-30, or instead of 5W-20, go with 5W-30. You just don't want a high viscosity when you first start the car and before it is warmed up... I'm glad you are changing the oil at 1500 miles. Manufacturers say it is not necessary any longer, but I do that as well... Change the oil often and use a good filter; change fluids every 3 - 5 years or so; keep the air filter fresh; use fuel system cleaner (i like Chevron Techron); and drive it right... and it will last a very long time. I still drive a 22 year old Acura that runs like new with 238k miles on it..

[@haydengalloway5177]

Its important to remember that some newer cars have very thin oil galleries. Its not just about wear its about getting the oil through the galleries. If your oil is too thick and can't get through the galleries properly it doesn't matter how much wear protection it has cause your car will be getting very little oil on key components. .

[@antpart7998]

@@mm-jx7gf you might want to be prudent with the fuel system cleaner, it's been shown to drop lubricity in your engine oil whilst it's in the system.

[@theghost75]

Good information for climate considerations on what oil to run / per season

[@kennethfeltman7693]

Not sure if you realize how much of a positive impact you have on most of us. Ty

[@ProjectFarm]

You are welcome!

[@realjohnnewburg]

Great test. Love the oil tests you do! Suggestion: I would love to see an oil filter test.

[@ProjectFarm]

Thanks! Thanks for the suggestion.

[@prestondeters5093]

It would probably be very difficult to do, but being able to test wear resistance while the oil is very hot would be cool. Them being at room temperature is closer to winter viscosity than hot viscosity. I wonder if they would be closer at those higher temps.

[@ProjectFarm]

Thanks for the feedback.

[@andrewlee88]

Blows my mind that all hybrid powertrains recommend 0w20 - 0w16 for the engine side assist. Looks like ill be blending some 5w into mine. Thank you for getting right to the point with tangible results and sharing it with everyone. ❤

[@ProjectFarm]

You are welcome!

[@Dankboi420]

Not just for efficiency, hybrids especially plug in require thinner oil. Imagine this, you’re stuck in traffic for a while and only using electric power. Once the traffic is clear and you put your foot down, the cold engine kicks in for power. But the thick oil doesn’t flow quite easily as the thin oil does when cold, you end up damaging the engine even more

[@96cr]

@@Dankboi420 if you love in the cold sure everywhere south of the mason Dixon line here in the states is usually above 30 degrees after spring they never go below 80 in Texas until winter

[@mohamedammarnsiri8163]

I am surprised i did not find an oil filter brand comparaison in your channel!! You definitely need to make a best oil filter video

[@ProjectFarm]

Thanks for the suggestion.

[@caballeroloco1103]

I think it would be a good video to test all 4 oils in your truck. Run 1000 to 3000 miles then do a oil sample test after each oil! Thanks for all your hard work!

[@ProjectFarm]

You are welcome! Thanks for the suggestion.

[@johnarnold893]

caballeroloco............why don't you try it in your truck, anybody can get oil samples done.

[@77.88.]

I sent my Italian Iveco 6 cylinder Turbo charged diesel engine using Ams Oil 15-40W diesel with a by pass oil filter system that was like 2or3 microns. I sent my oil sample in at 15,000 miles it came back with a clean bill of health, I the tried the same oil at 25,000 miles and it was still OK? The trick was I changed the engine twin oil filters at about 7,500 miles and I kept the 3 or 4" diameter by about 12" inches Ams by pass oil filter till only one half of the filter was still hot and the other half much cooler? An engineer taught me that trick as that large oil filer was very expensive my engine went 350,000 miles when I parked it 20 years later as finding parts were very hard to get in the United States. I find it Odd the the same engine and Turbo charger was still good when I parked the truck?

[@CalebGibbsAvenue]

Yes, because the test will show more results on where and tare. What components are worse. The 30w wate should be better for where. 16w whatever seems to thin depending on how hard you run your vehicle's.

[@CalebGibbsAvenue]

​@@77.88. I do the same on my Chevy cruze. It maybe where'd but it beats changing my oil like a idiot every 3,000 miles. I only do it once a year. It's the best feeling ever. Lots of pride saying so too. I run amsoil signature series 0w20