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17.5 combined, 20.5 highway. That's with a stock truck and 232K on the clock, but it may not be that way for much long. Good luck.
 

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304 Posts
90k miles I get 16 town, 21 highway. That's on 35s and EFI for my tune
 

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1,727 Posts
16.5 combined, 19-21 highway, 170,000 miles, daily drive my 200 HP EFI Live tune, and other stuff in my signature to help with mileage.
 

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ALMOST 22 with 20's averaging 70-80mph on the way home from TS.

if i could keep it under 65 with the smaller wheels and tires i bet it can get 24-25ish... ahh twins...
 

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7 Posts
Discussion Starter · #9 ·
Thanks everybody.. The truck I'm looking at has a bullydog tuner and a few other mods I can't think of at the moment and I believe it sits on 33's
 

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75 Posts
19mpg even combined
 

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805 Posts
20 combined mpg.


- Adam
 

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I have bad injectors, I get around 15 for city, 18-21 depending on what I do to get on the freeway. I got 21 average once towing an open trailer cruising 63-65.
 

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947 Posts
I avgd 22 till i had my trans built with a precision converter now im usually avg 18
 

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You guys drive a lot of freeway? Cause that's really good mpg...
 

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957 Posts
18 back an forth to school an odd jobs around the farm... dont know how but it happened
 

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347 Posts
i dont check city cause my foots in it. but on economy efi tune best ive pulled was 23.6 at 62 with wind with me but average on highway 21ish.
 

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304 Posts
19.9 hand checked last tank @ 80 mph on the interstate
 
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