snowsled
Junior Member
I think you would be crazy NOT to run the oil spec'd for the performance versions if you use your car that way at all. Mine gets Amsoil Signature 5w-50. It is the SAME viscosity at start up as the 5w-20 with VASTLY better protection when hot and run hard. Total no brainer despite the list of comments I see here. There is hardly any difference between 5w-20 and 5w-30, why bother making that baby step? Buy some protection for the same price. It isn't an accident track pack and Boss cars are spec'd 5w-50.
