Gas mileage????

dmbrichie · #1 (**permalink**) 04-20-2008, 04:16 AM

Just wondering what everybody else out there was getting for gas mileage?? I have got an 05 F250 6.0 diesel, 8 inch lift withh 38" tires. Air intake, full RBP exhaust, SCT Livewire with custom tunes from DJ's (always on tow tune). And I can't seem to get any better than about 10 mpg... So now it that diesel is getting up over $4.08 a gallon, it takes me $100 to fill up, and I get about 250 miles per tank. Ya I think you know where I am going with this. So what is everybody else getting? and what can I do to get BETTER mileage??? Please help...

**Dave** · #2 (**permalink**) 04-20-2008, 04:18 AM

What gearing are you running in the rear with the 38's

dmbrichie · #3 (**permalink**) 04-20-2008, 04:20 AM

Whatever that factory gearing is?? I thought about getting it regeared this summer, but I am not even sure what to gear it at??

**Dave** · #4 (**permalink**) 04-20-2008, 04:21 AM

With the 38"s i would regear to 4.30s from the factory it probably has 3.73 gears

dmbrichie · #5 (**permalink**) 04-20-2008, 04:26 AM

Do you think that would REALLY help me out? or maybe just a little bit??

**Dave** · #6 (**permalink**) 04-20-2008, 04:31 AM

That would put you close to stock gearing again and get you up to about 14 or so if you are getting 10 now

dmbrichie · #7 (**permalink**) 04-20-2008, 06:42 AM

bump...anybody else have any input??

mdiesel · #8 (**permalink**) 04-20-2008, 06:50 AM

take lift and tires off and dont go over 35's u will gain a decent amount

Matt

blue06crew · #9 (**permalink**) 04-20-2008, 06:52 AM

how do you know its 10mpg...have you recal your speedo?.

redracer62 · #10 (**permalink**) 04-20-2008, 02:51 PM

i would regear it if you really care about it. any thing over 35's you really should

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