10% Ethanol and mileage

[drv2die]

i dont care for ethanol, i havent noticed much difference when i have found non ethanol, my complaint is my car and the car manufacturer i work for dont recommend it. around 50,000 miles the ethanol and the alloy in the fuel rails while react and create a blockage. this is a pain in the @$$. i have already pulled the intake and then rails and injectors on my car and found some build up. other cars get towed in and have completely blocked injectors and rails. this is of course warrantied and that pays like $&^$. but i dont have a choice i only knew of one station that had ethanol free. and it was a 20 minute drive, plus .15 cents extra per gallon.

[euromodder]

Originally Posted by ChazInMT

"Despite extensive research, biofuels are still not commercially competitive.

Ethanol is competitive in Brazil.

E85 is big in Sweden - and one of the reasons you'll see high CO2/km values being reported for new cars in Sweden, despite their conscious ways to deal with nature.

(100%) Biodiesel is on the way out in the EU because you can't use it in diesels with particulate filters - even low % blends are adding to the problems.

[Frank Lee]

Cellulosic ethanol start-ups: Harvesting a new kind of fuel | StarTribune.com

[roosterk0031]

A - 3 tanks of E0 = 34.63 mpg
B - 3 tanks of E10 = 34.94 mpg
A - 3 tanks of E0 = 36.24 mpg

My mpg is still trending up due to driving changes, but last 3 tanks of E0 made +3% jump, with one tank at 37.74 mpg. I also wonder it it takes my computer a little while to adjust to different blends so sticking with E0 a few more tanks.