Found a pump a few years ago providing extra, pump had 4 fuels, but only E15 supplied extra. First few time I assumed I wrote down the trip OD wrong because I was getting an extra 100 miles each tank compared to the pump gallons filled. I've deleted most of the fills from the XFE fuel log but the ones left stand out.
https://ecomodder.com/forum/em-fuel-...vehicleid=6372
I keep trying different pumps but haven't found one off enough like that one to be outside my normal variation.