Fuel mileage

[highflier]

First big trip with an 2008 SD. Banks exh SB air filter kit no tune
Avg 14.5 with no load intu a headwind at about 80mph
avg about 8.5 with a 31ft bumper pull trailer with a tailwind at about 70 to 75mph
Austin,TX to south TX mostly flat some small hills

Is this about what everybody is getting in there 08 SD's

Anybody done a DPF delete and have mileage results

 

[gunman41mag]

HI highflier, Your a lucky guy, I bought my 2008 6.4PSD SC LB 4X2 last week, only have 241 miles, I check the computer for MPG and it said 9.2 MPG, WTF !!! My 1999 7.3 would give me 15.5 to 19.0 MPG with A/C on and me driving it like I stole it, and in BAD TRAFFIC, MOTHER FLECTHER, I should have bought the dodge with a cummins, The FORD tech told me as I break it in the MPG will get better, he said like 12.0 MPG. If thats the case, I mite forget to remove the keys from it, when I'm in the PROJECTS !!!

 

[atk]

HI highflier, Your a lucky guy, I bought my 2008 6.4PSD SC LB 4X2 last week, only have 241 miles, I check the computer for MPG and it said 9.2 MPG, WTF !!! My 1999 7.3 would give me 15.5 to 19.0 MPG with A/C on and me driving it like I stole it, and in BAD TRAFFIC, MOTHER FLECTHER, I should have bought the dodge with a cummins, The FORD tech told me as I break it in the MPG will get better, he said like 12.0 MPG. If thats the case, I mite forget to remove the keys from it, when I'm in the PROJECTS !!!

have you tried hand calculating your mileage?

 

[gunman41mag]

have you tried hand calculating your mileage?

HI atk, No not yet, only use the on-board computer, BUT I filled the tank all the way, and I'm going to hand calculate it !!!!

 

[Dogman]

The on-board computer dont work right all the time and there off even more with a tunner. Mine said I'm getting 15.6 mpg, but if I do it by hand I'm getting like 18 mpg.

 

[gunman41mag]

The on-board computer dont work right all the time and there off even more with a tunner. Mine said I'm getting 15.6 mpg, but if I do it by hand I'm getting like 18 mpg.

Yeah in about 3 days I will find out what MPG I'm getting ????

 

[judd.mcclure]

Im getting about 21 22 hand calc'd running 73 empty.

 

[gunman41mag]

HI GUYS, I hand calculated my MPG on the 2008 F250, and got 14.029 MPG, then I check the on-board computer, and it said 15.3 MPG. I think FORD'S on-board computer is lying to me ?????

 

[atk]

HI GUYS, I hand calculated my MPG on the 2008 F250, and got 14.029 MPG, then I check the on-board computer, and it said 15.3 MPG. I think FORD'S on-board computer is lying to me ?????

they tend to not tell the truth....

 

[sadavis73]

Mine gets 8.1 pulling a 24 foot v nose enclose at 6200 lbs. This thing sux and thats with a dpf delete program. I have 21000 miles on it and have spen 9600 on fuel.