- Joined
- May 16, 2021
- Messages
- 414
Amsoil claims to be better protecting shearing although, the test are done byI recently had my silverado serviced at the dealer after using Mobil 1 and ac delco filter for the past couple years. I notice my oil pressure isn’t running as low at hot idle after towing in the summer. Not sure what kind they used but I can’t imagine it would be anything other then bulk oil. Does Mobil 1 have issues with shearing or something I’m not aware of?
Amsoil themselves. For whatever that's worth.
AMSOIL vs. Mobil 1* Performance - AMSOIL Blog
AMSOIL Signature Series and Mobil 1 are two of the best motor oils out there, but ndustry-standard testing shows there is a clear performance winner.
blog.amsoil.com