Quote:
Originally Posted by Troy Sr
From a friend I used to race with and is a petroleum engineer at a local refinery here in the SF Bay Area. There's more latent energy in the lower octane fuel than the higher octane fuel, the only reason to waste money on the higher octane fuel is if you have higher compression in your engine, then you will make more power. You should run the lowest octane fuel that you can without having detonation in your engine. We used 110 octane race fuel when we raced but only because it was at the track and everyone had to use it, that way we were all on the same foot. Mine ran better on the 87 octane but it would not pass the tests after the race so you would be disqualified.
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That's totally true and people are wasting a ton of money buying higher octane fuel.
On another note, I had a '69 Camaro with a 327 and a 4-speed that I got 23 MPG driving cross country from California to Illinois for my A-School.