E85 MPG?

[libtrucker]

Looking into trying out E85, on a Stock (for now) 2020 Mustang GT. I have a RaceTrac by my house that has it at the pump. I understand the power benefits, but I'm wondering what I can expect for MPG vs 93 Octane.

Does anyone else track their fuel mileage?

Sponsored

 

[NGOT8R]

Looking into trying out E85, on a Stock (for now) 2020 Mustang GT. I have a RaceTrac by my house that has it at the pump. I understand the power benefits, but I'm wondering what I can expect for MPG vs 93 Octane.

Does anyone else track their fuel mileage?

I get about 240 miles per tank on E85. It does burn very fast, but I think it’s much better for my engine than the sooty burning 93 octane fuel.

I’m sure you will receive some type of benefit with an E85 tune only, but for the money you’re going to spend on the tune, I recommend adding all of your performance parts before you pay for a tune, just to get the most bang for your buck.

 

[Zrussian13]

My experience was...
19- 22mpg average when stock
14-16mpg on e85

 

[onlyturbo]

Expect to get around 30% worst mpg on E85. I would not use E85 as daily, as it requires more cleaning maintenance on engine. This is my experience reading on and using E85 myself.

 

[DougS550]

I get about 240 miles per tank on E85. It does burn very fast, but I think it’s much better for my engine than the sooty burning 93 octane fuel.

I’m sure you will receive some type of benefit with an E85 tune only, but for the money you’re going to spend on the tune, I recommend adding all of your performance parts before you pay for a tune, just to get the most bang for your buck.

Hi. I was thinking about going to E85 during the summer and switch back to 93 during the winter storage time.
- What other mods did you do to complement using E85?
- Which tuner did you go with?.
- What HP and TQ increase did you get with them?.
Thanks for your help

 

[ZM5.0]

I get about 240 miles per tank on E85. It does burn very fast, but I think it’s much better for my engine than the sooty burning 93 octane fuel.

I’m sure you will receive some type of benefit with an E85 tune only, but for the money you’re going to spend on the tune, I recommend adding all of your performance parts before you pay for a tune, just to get the most bang for your buck.

240 miles??? I get 145

 

[libtrucker]

I get about 240 miles per tank on E85. It does burn very fast, but I think it’s much better for my engine than the sooty burning 93 octane fuel.

I’m sure you will receive some type of benefit with an E85 tune only, but for the money you’re going to spend on the tune, I recommend adding all of your performance parts before you pay for a tune, just to get the most bang for your buck.

Are you sure about this? I think when I fill up with 93 the dashboard gauge says 183 to empty. But that's from memory, I might be wrong

 

[Kermitz]

I got 12.8 MPG on my last canyon run.
To me it’s worth it, not just for the fun factor but it’s also @ $1.50 per gallon cheaper than 91 around here.

 

[Zrussian13]

Are you sure about this? I think when I fill up with 93 the dashboard gauge says 183 to empty. But that's from memory, I might be wrong

Depends how you drive and how much freeway time. I do a 30/70 split usually. (City/highway) And I usually see 220 to empty but getting 240-250 isn't out of the question. If you spend a lot less time on the highway you'll drop fast.

 

[331GT]

Expect to get around 30% worst mpg on E85. I would not use E85 as daily, as it requires more cleaning maintenance on engine. This is my experience reading on and using E85 myself.

what extra maintenance? i am newer to the E85 scene, only been using it since mid july but that is all that I have run in it since then. i have the Livernois tuner and was told that it is a flex fuel tune which can adjust/compensate for the varying amount of ethanol that is found at the E85 pumps. i was planning on using 93 only pretty soon as the weather changes and ambient temps begin to drop.

and OP- i do a lot of highway driving. if i tried to get good mileage for a tank i would get 28-30 pretty easily on 87. i tried the same for shits and giggles on E85 and really couldnt get over 24. normal driving on 87 (mix of daily commute and a handful of pretty spirited bursts) i would get 22-24. normal driving on E85 put me down to around 15-18.

and note: that was 87vsE85. id imagine 93 would be slightly above 87 fuel mileage wise. lately i have been paying much attention to mileage, just driving the car to enjoy it. but i did want to see what it was capable of getting mileage wise just to know.

 

[ZM5.0]

My car is about where @ZM5.0 is on E85. When I fill up it usually reads 175 DTE. It's OK though. If I wanted the opposite of a gas guzzler, I would have bought a hybrid or electric.

It’s all about the smiles per gallon and the dirty looks you get

 

[NGOT8R]

Hi. I was thinking about going to E85 during the summer and switch back to 93 during the winter storage time.
- What other mods did you do to complement using E85?
- Which tuner did you go with?.
- What HP and TQ increase did you get with them?.
Thanks for your help

Do it, you’ll love it! I have Ultimate Headers catted LTHs, Steeda x-pipe, factory active exhaust, PMAS CAI kit (no tune required version), Lund Racing tunes on an nGauge. I never dyno’d the car until after the mods and it made 469 rwhp /434 rwtq on the E85R tune. I also didn’t switch back and forth between tunes during the winter when I was up north. I keep mine on the Flex tune the majority of the time and just pump what I need, whether it’s 93 or E85...Easy Peasy.

 

[NGOT8R]

Are you sure about this? I think when I fill up with 93 the dashboard gauge says 183 to empty. But that's from memory, I might be wrong

Oh yeah, I’m sure, I watch it all of the time. Whenever I fill up, my gauge always says 269 miles to empty, but I gas up at 240 miles; with 29 to spare. I don’t trust that gauge to the last mile, so I play it safe and don’t go below 25 miles DTE.

 

[onlyturbo]

I got 12.8 MPG on my last canyon run.
To me it’s worth it, not just for the fun factor but it’s also @ $1.50 per gallon cheaper than 91 around here.

From a cost savings point of view it is basically a wash, at least here in Long island New York...it is definitely more fun though, you can feel the power and torque comes up early in the rpm. But also a pain to fill-up gas more often...if you have the extra money burning in your pocket do it, why not. Don't expect huge difference, but definitely noticeable on NA car.

 

[Andy13186]

9.9 mpg NA for me. 8.7 MPG with 750rwhp whippled. I got like 12 mpg on 93 NA though.

Sponsored