Hey guys have a 2010 GMC crew 5.3l home maid CAI and a magnaflo cat back also leveled with 33's get about 16 mpg average just wondering e-85 is at $3.10per gallon can i get a custom tune for that and get better mpg? Thank-you

 

You would need a better fuel pump, bigger injectors, and a custom tune. You would use more E85 than gasoline.

 

oh yea it is a flex fuel as well

 

Your gas mileage will drop roughly 30% if you use e85.

 

And it just so happens that E85 is roughly 30% cheaper ... Ethanol from corn is a dumb idea.

 

That's an understatement.

Yes let's subsidize farmers who produce corn for fuel...

 

well what do you guys think is 16 mpg average good ????

 

its better then what im getting lol

 

That's not too shabby really, as far as running the E85 with the cost difference vs the loss in mpg it usually pretty much ends up a wash.

 

i found the best way to get better mileage is driving style if a drive slow starts slow braking and use the highway as much as posible keeping it about 60-62 mph i get the best mpg if i drive 55 it boggs a little on small grades . if i drive normal and get on it once and a while i get 13-15 if i try to drive slow i get 16-19 19 being all highway no city . if your truck is not tuned i would get it done most trucks pick up 1-1.5 mpg . "IF" you can keep your foot out of it hard to do once you get a good tune lol