Theres a gentleman that came into my work yesterday, who happens to have a wife that works there. Started chatting about oils n stuff, and he lost his credibility once he said AMSOIL is the worst oil you can run
Told him I was going to run 5w-30 for the winter and he said "Your oil cap says 10w30, run that or you will tear up your bearings, 5w30 is too thin."
Where do people get such information?
Im fine running 5w30 for the winter right? Its a 98 Regal GS (3800 S/C). Been running Amsoil 10w30.

Told him I was going to run 5w-30 for the winter and he said "Your oil cap says 10w30, run that or you will tear up your bearings, 5w30 is too thin."


Im fine running 5w30 for the winter right? Its a 98 Regal GS (3800 S/C). Been running Amsoil 10w30.