The problem we're seeing with fuel quality is not that octane has changed, but that most gas stations are regularly running the allowable maximum of 10% Ethanol. Ethanol has a lower BTU count than gasoline and produces less energy. The only advantage is that Ethanol also has a higher octane, although the gasoline companies use this little fact to sell cheaper quality fuel and bump the octane a smidge by the addition of Ethanol. Ultimately, what you end up with is garbage compared to the gasoline that was available 10 years ago.
Some places still sell straight gasoline, but it's usually considerably more expensive... and that's if you even lucky enough to find any. The only fuel around here (N.E. GA) that I can purchase straight gasoline from is basically any place that sells VP Racing fuels. There isn't a gas station anywhere around here that doesn't sell "gasahol".
What a load of crap...
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Bill Cohron - The Mad Doctor
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