royal purple vs amsoil ss
Mach 1 Member
Joined: March 1, 2007
Posts: 669
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From: Kansas City
I have tested several oils at black stone labs.
I have found that Amsoil SS holds its viscosity the best, and doesn't shear as near as bad as any others.
I used to run royal purple, but Amsoil has become the new standards in my house. Even for the mower
I have found that Amsoil SS holds its viscosity the best, and doesn't shear as near as bad as any others.
I used to run royal purple, but Amsoil has become the new standards in my house. Even for the mower
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FromZto5
2010-2014 Mustang
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Sep 30, 2015 05:28 AM