Thread: Premium gas?
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Old 09-03-2002, 10:06 PM
Erik VanR. Erik VanR. is offline
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Join Date: Aug 2002
Location: S.F Bay Area, CA
Posts: 14
On oxygenated gasoline: generally, the added oxygenates (ethanol?) have less BTUs per gal, thus provide less power than *pure* gasoline.
On the regular vs premium fuel: I have had many vehicles with varying compression ratios/performance engines. I have always tried to use the lowest octane fuel that will not allow pinging on a properly tuned engine in good condition. If 87 octane fuel doesn't allowing pinging, then that's what I use.
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