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Stoichiometric ratios of ethanol, gasoline, and various E85 blends
December 11, 2015
This article is a chart that shows stoichiometric ratios of ethanol, gasoline, and various E85 blends. It also gives target tune numbers for different engine operating conditions. Your specific engine/chassis combo may want something slightly different -- this is a guideline only intended to help get you in the ballpark.