Its even worse for my other vehicles.
the van went from 19mpg to 13-14mpg
The jeep dropped to 17mpg from 23mpg (I can sometimes still get 19 if I get wawa E8 and REALLY baby it)
Using washed gas it went back to 21+ mpg (and thats still 25% e10 in the tank and heavy amounts of idling and yanking :-)
Back to E10 but I do not have the cash to "refill" the tank just yet so I don't know the MPG of the return to E10 tank. When I do I will have a nice little mini ABA for the jeep.
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