Fuel mileage - F-Series & SuperDuty Diesel Forums

highflier · 09-09-2008, 08:36 PM

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 · 10-30-2008, 05:07 PM

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 · 10-30-2008, 07:26 PM

Quote:

Originally Posted by 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 !!!

have you tried hand calculating your mileage?

gunman41mag · 10-31-2008, 05:53 AM

Quote:

Originally Posted by atk

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 · 10-31-2008, 07:50 AM

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 · 11-01-2008, 05:53 AM

Quote:

Originally Posted by 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.

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

judd.mcclure · 11-06-2008, 11:22 PM

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

gunman41mag · 11-07-2008, 07:41 AM

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 · 11-07-2008, 06:27 PM

Quote:

Originally Posted by 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 ?????

they tend to not tell the truth....

sadavis73 · 11-21-2008, 08:06 AM

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.

09-09-2008, 08:36 PM	#1
highflier SDD Junior Member Join Date: Aug 2008 Location: Austin Texas Posts: 15 Thanks: 0 Thanked 1 Time in 1 Post	Fuel mileage 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

10-31-2008, 07:50 AM	#5
Dogman Dogman Join Date: Nov 2007 Location: tampa,FL Posts: 1,331 Thanks: 2 Thanked 104 Times in 90 Posts	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. __________________ 2008 F-250 All stock so far...LOL 1999 Jeep TJ play toy on 32" tires custom bumpers by me

11-06-2008, 11:22 PM	#7
judd.mcclure SDD Junior Member Join Date: Jul 2008 Location: San Antonio, Texas Posts: 24 Thanks: 0 Thanked 0 Times in 0 Posts	Im getting about 21 22 hand calc'd running 73 empty. __________________ 2008 F-350 6.4L King Ranch 4X4, outfitted by South Texas Outfitters, tuned by SPARTAN RIP: 95 F-350 Powerstroke, 4X4, 5 Spd, Crew Cab,Long Bed, 4" Superlift on 35" BFG AT, DI 4 Bank chip, 4" exhaust, DIY Tymar, Ranch Hands 2004.5 Cummins, 2500, 4X4, Full billet DTT, FASS, TST, SMARTY, Flux 3 injectors, Helix cam, Di-Procol (Boost, EGT, Trans, Rail, Fuel), AFE PG7, 5" pipe, 315 BFGs. (893 on fuel ) 2005 Chevy 2500 Duramax, Diablo tuner, PYRO.

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10-30-2008, 05:07 PM	#2
gunman41mag SDD Member Join Date: Feb 2008 Location: MIAMI FLORIDA DADE Posts: 65 Thanks: 0 Thanked 0 Times in 0 Posts	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 !!!

11-07-2008, 07:41 AM	#8
gunman41mag SDD Member Join Date: Feb 2008 Location: MIAMI FLORIDA DADE Posts: 65 Thanks: 0 Thanked 0 Times in 0 Posts	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 ?????

11-21-2008, 08:06 AM	#10
sadavis73 SDD Junior Member Join Date: Jan 2008 Location: Jonesboro, Ar 72404 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts	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.