Quote:
Originally Posted by BlackDeuceCoupe
And, yes, my 'measuring cup' routine leaves a lot to be desired - that alone might explain the wild fluctuations and inconsistency in mileage.
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If you're doubtful about the precision of the mixture (due to small amounts of additive per fill), premix the entire 16 fl. oz. bottle of additive with gas in a 1 gallon gas can that has been marked (with a sharpie) on the side to indicate the 1 gallon/full point. There are 16 cups in a gallon and 16 oz in the bottle, so 1 cup of premix, partial concentrate = 1 oz full concentrate.