we do not use ethanol. My wife drives it daily, about 20 miles to work (country roads) some town driving. Last summer we took a day trip to Minneapolis (about 350 mi round trip mostly
interstate. The dash trip had not been reset for a couple of weeks and read 39 mpg. I drove
mostly about 75mph when we got home it had climbed to 42 mpg. we have tested it many times with always the same results. I'm left scratching my head when i read most of this thread. I cant explain it. and I'm a lead foot driver!