I understand your concerns...
I am not a chemical engineer, but a friend of mine is, at Mobil.
We have discussed oils Ad nauseam
, till he fianly got it thru my head...
The new breed of synthetics are not built the same, or blended the same as the old dino oils. These newer synthetics do not meet the oil spec requirements the same ways.This is important to understand.
A top shelf synthetic oil, like 0-50 racing Mobil1, or any other top shelf brand, is created from a very high quality base stock of 0w. It does not get thicker as it heats up.
Nope, it does not increase viscosity at all.
What it does do, is it passes all the API requirements and test criteria of a 50w oil, still being a 0w oil. Yup, a 0w oil that meets or beats all the tests required to be labeled 0w-50. Thats how good these oils are.
So I ask you, why use a 20w-50 oil that will not get thru oil galleries as quickly as a 0w-50 (especially
Why not use a 0w-50 that beats all of the specs of the 20w-50 cold or hot..?
It has similar additive qualities/quantities as the Polaris oils.
actually it has slightly more zinc and Phosphorus anti-wear additives. Most all other oils have substantially less... check it out.
Mobil 1 Racing 0W-50
Phosphorus Level, PPM1750
Zinc Level, PPM1850
IMO, 0w-50, its a win win no matter how you look at it...