HPtuners Question and Answer Thread

[DGatzby]

Been playing with E85 since my 06 300CSRT was tuned for it by a local and a DD Tahoe I had for the last ten years. Just roughly figure 30%. The gas stations know it because at least here in MN the cost difference is usually about at 30% off of premium and about every time I looked at either of those vehicles the gas mileage was about 30% difference.

As you guys are discussing it is tough to put your finger on the MPG difference because such a small hit on the accelerator can make it go off, especially in around the town driving. My Redeye gets about 18 in typical suburbia driving. In town like @Speedy! says I believe the 15 mpg, but one fun smack on that throttle can send that number bye-bye.

Looks like your having fun guys. As you know I am just a set of injectors and another tune from @Jon-MooredPerformanceLLC to be in E85 heaven. It is too much more power for the road course and would get about 1-2 mpg compared with like the 4-6 it gets on gas. Could not do too many laps!! Keep doing us proud, love the slips and videos.

 

[ostmike]

I believe mpg with cost of fuel it is cheaper to run e85. You are running out faster but costing a lot less on fill up. Guy at work uses a calculator to compare 87 to e85 in his 2011 f150 5.0 and said it was cheaper with e85. 93 is another .80 cents more or so

Around here E85 at the pump is only about 80-90 cents cheaper than 93 octane. With the additional fuel consumption running E85 you will definitely be paying more than running 93.