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 ...
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No issues with 85 octane in our 3/4 ton Chevy gasser since we live and primarily do most of our RVing at high elevations. I never seen much difference in performance using the lowest grade available, but do notice a minor bump in mpg on the rare occasions that we have opted for supreme grade.
