No need to be nervous. Just gotta remember every car is different, so you wanna test it before you drive to the dyno. Its close enough. Shit, we were in the town when we were logging. You could get your car to about 1/8th tank, then put in about 2.5gallons of e85, and 5gallons of 93 and test it. If its not liking it, you can easily add a little more 93, or even e85 if the car is liking it.
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