Quote:
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I like to mix some 112 Sunoco in with my 93 octane Pauly. Actually even starts a little easier.
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I run a 25% mix of VP 110 leaded with 87 no ethanol to bump me up in the 92-93 range-starts better, runs better...
FWIW the BTU's in a gallon of gasoline has gone down significantly in the last 30 years... it was 126,000 BTU prior to 1993 -- when they began mixing ethanol into the supply... the current BTU's for gasoline is listed ~114,000 BTU -as an aside... 100% Ethanol is ~ 57,000 BTU/gal
THIS MEANS that in order to get the same power you need more fuel... bigger jets... IF you are running any ethanol laced fuel you may have to increase jet size by 5-10% in order to get the same power out of the engine.
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~JAG~
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