[roosterk0031]

Less than 2 hours ago you claimed 20% loss, I don't see 10% on the board as a norm, that means the ethanol might as well be water. You swicthed from E15 to 10 precent 90% gasonline. E10 should get 15.52 per my calculations, 1030 gallons of fuel, 103 of ethanol, 900 gallons of gasoling. Or 1000 of E0, E10 results in 100 gallons less gasoline, only 30 gallons more total fuel.

Economics wise, at the closest station to my house today 3.45 vs 3.55, $3553.50(e10/year) vs $3550, a whopping 3.50 difference. I'd like say someting's wrong with this truck too, but sorry to say it's most likely your record keeping. We always have 0.10 differnce so the higher the prices goes the worst it gets economics wise for E10(smaller percentage difference), used to be the clear winner. E10 would have been a winner until a few weeks ago but still only saving you $5-10 a year. But think of the 100 gallons of imported fuel exported $$ vs home grown and manufactured fuel, those dollars spend again and again vs leaving once.

E10 has 3% lower energy (average summer & winter gas blendscombined) anything more than 3% loss in MPG means something is wrong. And based on the other study some cars actually get better MPG with E20 or E30(non-FFV cars).