Quote:
Originally Posted by Mike V. Florida
One more thing, octane is the measure of how much compression a fuel can withstand before igniting. Or, in layman’s terms, the higher the octane rating, the less likely the fuel is going to pre-ignite (read: explode unexpectedly) at higher pressures and damage your engine. That’s why performance cars with higher compression engines require higher octane (premium) fuel. The Model A (even with a high compression head) is no where near the engine compression that higher octane gas was designed to protect.
Which goes to prove, use the lowest grade (cheapest price) and be happy.
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In town there is a self service e85 fuel station along with other grades, but I seldom see vehicles there. Don't know why. I know my old Massey zenith carb dislikes ethanol fuel and I venture it really would not care for E85. The old vintage float valve is rubber tipped and every once in a while when I only had ethenol around, that float valve on occasion got kind of sticky.