Originally Posted By: 21Rouge
Originally Posted By: fdcg27
the M1 Os are generally thought to be mostly Grp IV/V basestock oils, although only XOM knows for sure,
So we are confident that M1 0W30 is a significantly different formulation than the ubiquitous M1 5W30? I guess most noticeably it having different basestocks?
M1 doesn't include the MRV spec for the 5W-30 anymore but when they did it was reported at 12,700 cP @ -35C.
M1 AFE 0W-30 has a MRV @ -40 of 11,100 cP so it is 13% lighter at -40 than the 5W-30 is at -35C which is obviously a lot.
So yes the base stocks have to be different as is always the case when comparing a 0W-XX to a 5W-XX oil's.
BTW PP 5W-30 has a MRV viscosity of 14,800 cP @ -35C which makes it 17% heavier than even M1 5W-30 at that temperature. And PP is a whopping 33% heavier than AFE 0W-30 is at an even lower temp of -40.
Originally Posted By: fdcg27
the M1 Os are generally thought to be mostly Grp IV/V basestock oils, although only XOM knows for sure,
So we are confident that M1 0W30 is a significantly different formulation than the ubiquitous M1 5W30? I guess most noticeably it having different basestocks?
M1 doesn't include the MRV spec for the 5W-30 anymore but when they did it was reported at 12,700 cP @ -35C.
M1 AFE 0W-30 has a MRV @ -40 of 11,100 cP so it is 13% lighter at -40 than the 5W-30 is at -35C which is obviously a lot.
So yes the base stocks have to be different as is always the case when comparing a 0W-XX to a 5W-XX oil's.
BTW PP 5W-30 has a MRV viscosity of 14,800 cP @ -35C which makes it 17% heavier than even M1 5W-30 at that temperature. And PP is a whopping 33% heavier than AFE 0W-30 is at an even lower temp of -40.