Whoever came up with that test is a genius. Almost perfectly simulate real world shear in 15 min with only 20mls
I used to be a tribologist. The motor oil may well be good for 10,000 to 15,000 miles. The problem is abrasive particulates have built up in the oil that can act as sandpaper on engine parts. I agree with people about changing oil at 5,000 to 7,500 miles. Use a first rate filter, too. Never use a cheap filter.
So bottom line keep your oil changed, and don't go 10,000 miles between changes
I love the analysis, but you really need to do a summary at the end that includes the results and guidance. not necessarily recommendations, but overall guidance in selecting, or deciding between motor oils.
Damn Steve-o changed his ways and became a scientist!
This is such an awesome channel with such great information. It’s SOOO difficult to find good information about oils as a consumer, and bringing this level of information to the non-scientist is freaking amazing. Thank you!
you validated what a lot of us shade tree engineers figured out why the early N20 BMW engines were having problems with failures. BMW dealers were reccomending stupid 15,000 mile oil changes to avoid giving free oil changes during the first 3 years. 100% if you like your car you send samples to blackstone labs and find out what your vehiclewants for oil changes. Changing a good synthetic at 7500 or less miles stopped a lot of people in the N20 engines from having problems. Moral of the story, The manufacturer and dealer dont know crap about servicing your car, get actual lab results to tell you what you need to do for oil change intervals.
I am glad that you are demonstrating tests like this to the public. There are too many people that thinks that a bearing running through a small amount of oil on youtube channels know what they are talking about. You truly know what you are talking about. I appreciate the knowledge.
We all love learning about shear strength. I'm sure everyone would love to see a test of a bunch of off the shelf oils go through the test to see which ones are most shear stable, especially people who run their engines hard.
Of course we are curious to see ‘what changed’ in the Mobil One oil…. We are here because we are very curious on this subject 👍
When Lake said he was trying Pennzoil Ultra in his Porsche I continued watching these videos with great interest, but also promptly stopped taking our cars to the dealer for oil changes and started doing it myself with 5w30 Pennzoil Ultra Platinum and Purolator Boss filters in both my Fords. I also feel reassured by this video that switching my 5.0 F150 to 5w30 instead of 5w20 was the right choice if it’s going to shear lower than spec anyway and is already prone to oil consumption by vaporization through the pcv.
It would be awesome if you did an off the shelf oil championship (project farm style) with true lab equipment. You know with brands like Pennzoil, Motul, Mobile 1 etc...
Im an MLT1 technician by day, and a car enthusiast by night. Im so glad I just stumbled on this channel.
dude. i absolutely love this channel. i have used 5 40 in my 2006 hemi. i am pushing 400000 kms no hemi tick
David Stobber always looks like he’s been called out for an answer in school by the professor. He always comes through but the stress is visible. Good job David!
Love this channel. So much stuff on YouTube is crap but this show is worth every minute. Thanks Lake
Never really cared about viscosity until we bought a GM 3.6 and the cam sensor played havoc on our check engine light. Started using Royal Purple, saw no change. Moved to Amsoil. No improvement. Only driven 3500 miles p/y. I change the oil every 9 months, screening the used oil for particles. Only when I began to drive for 300 miles or more would the check engine light go out. The engine runs strong. So I'm back to using what's on sale. Going to learn those additives to make better selection. Video is great, because it makes old brain have to work.
Love the data. Glad you are doing this. Still not convinced to switch from Amsoil. Used Amsoil for 230k miles on my 2007 Volvo LPT S60 and no leaks, no burning of oil, no oil loss, period.
I remember when I bought my Supra and asked the dealer about break-in procedures. The guys said people usually just get on these immediately so I don’t know. Then he told me about 10k recommended change intervals. I promptly took over service responsibility from then on 😂
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