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Using E0 (100% gas) I got 25 at the best when driving real carefully. That's 25% better than the EPA "combined" estimate, and 1mpg better than the highway rating. My driving is generally 50/50 city/hwy. So essentially I'm barely breaking even using E85 compared to using 100% gas. I'm just wondering if there's more potential in fuel economy mods using E85 versus gas. I know that if you significantly increase the compression ratio you can get just as good mileage as you can with gas, the problem being that you'd never be able to use gas in the car again. But I figure E85 will like cam and ignition advance more than gas, just gotta find the time to try it out.
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E85 ~$3.17/gal. 
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