MPG?
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Mountain Pass
Joined: Jan 2019
Posts: 170
Likes: 5
MPG?
I put in an Atlas 40 tuned FICM in my 6.0 Excursion. 115k miles on the vehicle before replacing the stock FICM . I'm now getting just below 14 MPG around town. That seems to be a bit better than the stock tuning I had before. What are you all getting with "city" driving?
Laughing Gas
Joined: Jun 2021
Posts: 983
Likes: 366
I get about the same (+ or - about 1 mpg ) with my 6.0 Ex. Its has a sinister diesel FICM (was on it when I bought it, no idea of the specs) and runs a generic canned SCT tow tune.
Strangle enough, going from stock size tires to 35" tires changed it by only about 0.5 mpg (same 3.73 gears before and after), I really thought the tires would've been a bigger hit to the fuel economy.
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Strangle enough, going from stock size tires to 35" tires changed it by only about 0.5 mpg (same 3.73 gears before and after), I really thought the tires would've been a bigger hit to the fuel economy.
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Tuned
Joined: Apr 2004
Posts: 365
Likes: 2
From: Silverthorne, Colorado
Same for me as well, pretty reliable high 14s not matter what I do, as there isn't much flat land around here that doesn't have a 40mph head wind in every direction.
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