I bought a new 2004 Chevy Tracker and was looking at the manual. It says on 4 different paragraphs that I must use engine oils that meet two requirements:
-API spec. 5-W30 or 10-W30 AND
-GM 6094M specifications
I have looked around, and I can't seem to find any oil that says it meets the 6094M spec. Not even Mobil-1. Other than the dealer, where would one buy engine oils that meet this requirement?