On my current trip through the PNW, I pushed 20mpg at 75 on Washington gas, but the E10 in Oregon has dropped it by 10%.

I don't get it. I use the same amount of gas plus I have to burn water loving ethanol which cost more global warming to produce as well as driving up world wide commodity prices etc., etc.

89 3L V6 5spd SWB, Aisin Manual Hubs, 2 (suspension) seater Raider in Wheeler, OR