No...e85 burns leaner and therefor requires more fuel to run.

 

take off the wing

 

Exactly, I get like 13mpg combined in winter, 14-15 in summer. So nope, e85 is not the answer to better MPG, lol.

 

On E85, you'll be lucky to get 150 miles out of a full tank!

 

I get 30+ mpg on my yaris. Lol.. I get 14mpg city and 20mpg on my x gsr. It's sad.But fun

 

I'm getting 20 mpg in town and 25 on the highway. I have the receipts to prove it. I filled up with gas, drove to KC and filled again. 25 mpg. That was on winter gas, I have not tested since they've switched us over to summer, but I'm seeing 21 or so in town now.

I've upped my timing by 3* or so in my cruise area. The 40's are now 43* and some others have been increased by more to ~38*. This is all in the 2250-4000 RPM and 0-80 load areas.

My exhaust timing is -10 to -15* in that cruise area and my intake is 10 to 15* in the cruise area.

I also am running a Recirc BOV set so that it stays Open during cruise. This allows air to bypass my non-spooled turbo and eliminates some resistance. I saw 2 mpg increase with this.

Lastly, I run 91 octane fuel with 0% Ethanol. 10% E will reduce gas mileage. Granted, I don't have a choice, as 93 octane 10% E is not available near me.

I am still working on my econ, and I will be running more tests on every trip I take with the X. Next set of tests is scheduled for April 2nd.

 

Oh, I should also note that when I got 25 mpg, my display showed 26 mpg.

 

best ive gotten is 25mpg @ 55mph. Cobb Stage 2.

 

I have a Z-Chip and wideband and used these to lean out the mixture a little. This allowed me to go from ~21 to ~23mpg combined without any loss in performance. I live in Colorado and do a mixture of highway and city driving. I don't make any effort to stay out of boost.

 

kind of off topic, for those of you in socal, which gas chain sells non-ethanol gasoline?

 

I had to drive 50 some miles today on the highway and got 33.x MPG . Thats just one trip of normal driving using cruise control. On average I would say I get 24-25 MPG at best.

 

You can't go by the dash at all though.

So that statement is null for mileage. Unless you filled up to full, drove 50 miles then filled up again to full and used your miles driven divided by your gallons filled.

 

I'm unsure how you're even getting a 17mpg average. If I drive my car somewhat normally to work, I average 14-15. If I'm having fun, more like 12-13. Highway for any long period, it doesn't matter how fast I go, it's about 23mpg. If I slow down consistently to 65-75, it's as high as 26mpg.

I'm bone stock.

 

Bone stock you will have a disadvantage for higher mpg as you are running really rich.

But your mpg's sounds about right.

This whole thread is only about people that keep saying they get high mpg's just because their center lcd reads something without bothering to actually check each tank.

 

best i get is 24-25 mpg highway after the tune, 17-18 city

maybe some jesus help, a gust of wind, drafting a semi truck down a long hill it might get better LOL