I run it in the old shop truck and my winter beater... Also run E-90 in two drag cars, works great for me, my favorite thing about it is the octane is high enough that you can actually run some compression in an engine again and not get stuck paying for race gas! Most important thing is to get the carb correct for E-85! There are a couple of carbs specifically made for E-85, AED and Demon both have them. We get ours set up by a guy here locally who is a whiz at it!