Mini maxx with 5 in turbo back

[coalrollr]

okay so i have a minin maxx and a 5 in straight pipe straight from the down pipe. I guess i dont have the tuner set right bc im still only getting 16mpg its just a 250 and i read everywere i should be getting over 20 and its not throwing any codes so i really think i just have it tuned wrong idk. advice?

[08twinturbo]

No I think it is right on track. That's about average. Now enjoy yourself.

[travisH3]

In order to change your mpg, you have to change your driving habits. I only get 11-13 and mine is a deleted reg cab.

[fordpwrstroke7]

You can get 20 mpg if you coast downhill. I just drove 1,800 miles round trip averaging about 90 mph and I hand calculated 17.2 mpg. Tuned and straight piped.

[JOE_JOE]

With what size tires tho. Stock tires are best for mpg's. my 35"s and my tuned and deleted 6.4 only gets like 12. And that's babying it


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[fordpwrstroke7]

Originally Posted by JOE_JOE

With what size tires tho. Stock tires are best for mpg's. my 35"s and my tuned and deleted 6.4 only gets like 12. And that's babying it


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My tires are 325/60/20s. About 35.6" tall.

[ZCLynch]

I wish I could see 16mpg. I can only get that on the highway. With everyday driving I'm lucky to see 12 mpg. Deleted, tuned with H & S, cold air intake, and running stock tires. I'd love to get great mpgs, but I really don't think it's going to happen.

[Capt dong]

16 mpg is very good fuel economy for the 6.4.

my truck is lovin this cooler weather (lower 60*s) and mild humidity. i got 16.9 mpgs for the whole tank 75% hwy driving towing the boat a couple times and hauling a few loads.