Best Oil for Z06 (Alternatives to GM4719 Spec Mobile1)
Been reading everything I can find, but still hard to find clear answers. Of course this is for engines that are not under warranty and looking for superior replacement.
1. German Castrol (0W-30): One report I read had the lowest wear of several tests.
2. Amsoil: They have 3 types available in 5w-30 for the Z06, as well as a 0W-30 which some people prefer. They show their own comparison data, but they leave out some others I am interested in.
3. Castrol Edge (with Syntec): Claim to have 8x less wear than Mobile One, and like the German one, used in high end cars often.
4. Mobil 1 Extended Performance: Seems to be a newer version, but unsure about Z06 use.
There are lots of others that I would prefer to skip in this particular thread at the moment (E.g. Pennzoil, Purple Royal, Quaker State, etc...)