Quote:
Originally Posted by svxfiles
Since you are located in IA, I would suspect that you are using gasahol.
See if you can buy premium gasoline without alcohol and youe milage will go up.
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Do you mean ethanol? The premium I use is 93 octane with 10% ethanol(highest octane in town other than the race fuel shop, and only place with 93). There is one other place in town that has 91 octane premium without ethanol. I thought the ethanol blend was the cluprit at first, so I was using the non-ethanol 91 octane fuel for about a month, and I noticed no difference in gas mileage. So I switched back to the 93 ethanol blend. All other gas stations in town (about 40 of them) don't even have premium, but they have Super Unleaded 91, but most of it is 10% ethonal blend too.