E85 question

[Family Truckster]

I just ordered a autocal and my question is I run E85 sometimes because my closest gas station sells it as well as regular gasoline. Is there any benefit to running E85 for tuning purposes?

 

[zzpw3x]

It would also be worth knowing if once I have the tune, can I use E85 at all? I have no plans to use it, but would like to understand if I can use it.

 

[JennaBear]

If your vehicle is flex fuel, you can definitely still run it.

 

[sumo]

i have the BB autocal. I have a tune for 87 octane. Justin tells me its ok to run E85 with the 87 tune. I have and had no problems

 

[Family Truckster]

The higher octane in e85 doesn't allow for a more aggressive tune?

 

[JennaBear]

We can make some changes for E85, but the MPGs plummet.

 

[sumo]

well with E85, Mpg are not there to begin with. Full tank of E85 with a BB tune for 87 i got about 271 on a tank

 

[edgaranah1]

well with E85, Mpg are not there to begin with. Full tank of E85 with a BB tune for 87 i got about 271 on a tank

How much did you pay to fill it up? Were you driving both city and highway?


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[2011Tahoe]

Also I have heard that it is good to run E85 every now and then because it supposedly cleans the engine since it burns hotter? Anyone know if this is true?

 

[sumo]

How much did you pay to fill it up? Were you driving both city and highway?


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last fill up of e85 cost 3.24/gal $73.00 to fill up. Pumped 22.5g into truck.

According to my records. I went 297 miles before i needed gas again. Calculated 13.627 Mpg. This was mixed Highway and city driving