85 octane
While traveling out west this summer I noticed most of the gas stations offering 85 octane and 87 octane as their mid grade. Has anyone tried this in their gasser? I wasn't going to try it especially ...
Forum Discussion
Some of my fellow posters may be experts on gasoline, octane and modern GM engines but none of you will repair my car when it breaks down and Chevy says I didn't follow its advice on octane...no warranty coverage.
