We don’t and it’s a problem IMO. In my personal experience it’s been dealing with stuck oil rings and engine cleanliness. I’ve seen differences between brands in those departments.
Oil Brand consideration Mobil 1 to Kirkland
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Agreed, any claims of exceeding specs are not easily verifiable unless independent tests are done which is very expensive, so its a bit of an unknown
IMO, there isn't alot of differences in the oil as the specs have tightened over the years, but certain engines probably work better with the additives in a given oil. A higher calcuim additive may work better in a GM 5.3 vs the Ford ecoboost which may better off with higher boron or moly. Probably more on the different engines than oil. A 3.6 Chrysler engine may go with any Dexos Gen 3 oil easily on10,000 mile oil changes where an ecoboost may be needed to an oil change on a name brand oil at 5,000 miles due to fuel dilution??
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I mean, there is that Engineering Explained video where Mobil shows by how much Mobil 1 exceeds the requirements, and then how much further still EP exceeds them, so, that's something I guess? Would be better to have more data of course.
This isn’t a guarantee of performance but I do enjoy comparing things like pour point, Noack, virgin oxidation etc. to find clues of ingredient quality. The use of ester, pao, and an’s are things I like in a formula.
Meet or exceeds. After market parts are always saying Meets or exceeds OEM specification. Some fail in months continually. That phrase means nothing at all to me as proven to me time and time again to be based on opinion. Some items just dont meet any rating they say they do. However I Know I am talking Apples a mushrooms. Point Provf it to me, rather us.
100% true. Also 100% engine dependent as some engines require more than the approval provides. Like my oil burner.
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Now do it over time instead of one singular data point, which is inconsequential and absolutely worthless in statistical analysis.
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Booya
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True, but with what seems to be an increasing number of issues with oil control and the oil control rings coking up, it's starting to look like it might with newer engines.
What im starting to belive is it doesent matter much to any engine component but the piston and ring coking. Once problems begin here its all downhill.
I thought the best remedy for ring cooking is short OCI, I doubt Mobil1 vs Kirkland will make any difference if you change your oil ever 4-5k miles.
OVERKILL
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The best idea would be to use an oil that's highly resistant to coking. An oil comprised of extremely light base stocks will be more inclined to coke when spending time in the presence of combustion gasses and heat.
https://www.blackstone-labs.com/wp-content/uploads/2018/09/Aug-17-ENG.pdf
I like this article. It shows wear metals don't change drastically, regardless of what oil is used.
Dismiss for lack of "resolution" if you must...
I like this article. It shows wear metals don't change drastically, regardless of what oil is used.
Dismiss for lack of "resolution" if you must...
I can only speak for mobil 1 in the ring unstucking and cleanliness thing. Nothing else I tried worked at the time.
Makes sense, but we are comparing Mobil1 to Kirkland, do you think there is big difference in the base stocks between them?
OVERKILL
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Yes, in some of the grades there definitely is.
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Always an eye out for a yellow tag deal - ribeyes includedYeah, I remember all the M1 AP you snagged cheap from Wal Mart like me.
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