Quote:
Originally Posted by hal101
ok so i will move up to 1 oz to 6 gal of 93 octane which = 102 octane and see if it goes away
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Won`t hurt to try. Timing has no effect as the spark is off while this is happening. So, it`s out of the picture. The fuel can`t take the heat in the chamber without lighting off by itself. That`s why they called it "dieseling" back in the day.