Originally Posted By: FrankN4
Originally Posted By: calvinnnnnnnnn
what do you guys know for sure is group 3 or 4, that itself will be good enough
what is valvoline synpower and castrol syntec? those are the two oils i use in my vehicles
Valvoline Synpower is greater than 80% and less than 90% GP III. I do know that they have UP TO 12% GP IV, BUT, I do not know if that is 100 cSt GP IV add pack or 10 cSt GP IV base blend, or some of both.
I do know that from over a year of UOA research, in many, many areas, Valvoline is one of the most shear stable oils.
what are the top oil in group 3?
lol is there an abbreviation page, because i have no idea was gp cst are...
so valvoline synpower is group 3? what is castrol?