octane rating and engine performance
In Texas, the minimum octane rating is 87. On a recent trip to Glacier, I noticed a lot of the fuel in states like CO, WY and MT, the octane was 85, and you had to buy the mid-grade to get 87 and abov...
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I'm not at all worried about following the manufacturers recommendation. One problem of autodidacts (most of us in most subjects) is we don't know what we don't know.
