Quote:
don1260 wrote:
I found a list of pure gas (without enthanol). The highest octane rating was 93. I tried the tetraethyl before but it didn't seem to improve the performance.
Don,
You might want to shop a bit more for the "clear" gas. Around here, it's almost always sold (usually at Mobil stations) as "racing" gas and has an octane rating of at least 95--sometimes up to 100. This should solve any pinging problem. No toxic substances to add or extra hardware to hook up.
It's true that high octane gas will not really improve performance other than what it does to get rid of pre-ignition situations (and that WILL improve performance). It actually has fewer btu's of heat in it than lower octane gas, and, if you don't need the extra octane, it will lower your gas mileage. Buy if you are experiencing ping and spark knock, you'll lose even more mileage with lower octane fuels, because the engine isn't using the gasoline for power, just for "explosions" inside the cylinder (and the accompanying damage).
I bet if you look around for Mobil stations that carry "clear" high octane gas at the appropriate octane, your troubles will disappear. (Except for paying for the stuff--it's pricey.)
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