| e85 is cheaper and as said before you do get less gas mileage. as far as being able to mix you can do that the ecu will compensate where it has to make it work as long as it is rwd not a 4matic. i personaly hate e85 it was something the big 3 american companys came up with to get money from the government since they have been getting their a**es handed to them in sales for years. yea its cheaper you get less mileage and its actually worse for your engine than reg fuel. i hate the fact that other companies are useing it as an option on their cars. sorry bout my rant just... | 
