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Old 01-05-2007, 10:02 AM
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Join Date: Oct 2006
Posts: 2,291

20% fuel in all my trucks. works liek a charm. anythign higher is too much for racing and too expensive. and yes 10-15% is cheaper, but will put more hurting on your engine. ive never overheated. and i run hard in the summer when its about 100 here. track temps get up to bout 110-120. never overheated. 2.5 or 3.3
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