Originally Posted By: Ben99GT
Originally Posted By: vinu_neuro
Originally Posted By: Ben99GT
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Great. How does WSS-M2C946-A, which is what PP and PU are approved for, compare to M2C913-C.
I'm not sure, but compare Opel Dexos 2 to A5/B5-08, notably in wear performance. It's a shame that tool doesn't have more US relevant specs.
I think Dexos 2 is based on ACEA C3. Both are diesel specific. It would be nice if they had more US specific specs.
An oil that meets M2C913-C (the one in your first screenshot) is European M1 0W-30. Interestingly, it's got 1000ppm phosphorous, API SL.
Originally Posted By: 4ever4d
Because the PCMO used in NA approved by API is most often more than good enough for the majority of the population and their daily drivers. There are "better" speciality oils for situational exceptions.JMO
cchase summed it up nicely. Most people couldn't care less because they aren't aware. But we're on an oil forum and obsess about the minutia that delivers better wear performance. When you see such a massive difference in oil spec performance, there's no reason not use the one that undoubtedly delivers performance to the current highest standard according to people who have the resources to test it. PP, PU and M1 all cost pretty much the same on sale.
As far as the ACEA post-2002 gasoline/diesel combination go.. at least half the cars in Europe are still gasoline so these specs are very much relevant. I believe they will have devised the tests in a manner to be applicable to both.
PP does meet ACEA. Though so far we've only seen evidence of ACEA A5/B5-04 and A5-02. Despite being told by SOPUS and their datasheet that PU does not meet ACEA, they print A5/B5-04 on the bottle which may or may not be accurate. Again, there's anti-wear performance left as far as we know, and at the same price there's no reason to not go for the one that we know for certain delivers the highest level.