Re: 93 Octane or 87 Octane?
I obtained a carb and mechanical pump rebuilt with components that avoid the problems associated with ethanol gas. My engine is a stock 59AB and starts/runs very nicely on 87 octane ethanol gas. Here we currently pay 2.21 per gallon for that. 91 octane non-ethanol is available but costs about 80 to 90 cents more per gallon, AND one has to drive a half hour each way to get it.
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