Last post on Aug 27, 2012 at 10:06 AM
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Ford F-250 Super Duty, Dodge Ram Pickup 2500, Chevrolet Silverado 3500, Diesel, Truck
#129 of 133 Bad fuel mpg
Feb 09, 2010 (8:43 pm)
We have a 2008 F250 Diesel with 51,000 miles and are still get terrible fuel mileage. It averages between 11 -12 and thats with a chip. We are thinking about changing rear ends (now has 3.73) . Has anyone ever done this and improved their fuel mileage?
#130 of 133 Re: Bad fuel mpg [nme1]
Feb 10, 2010 (7:46 am)
My understanding is that changing to a 4.10 rear end will further decrease your mileage. I was under the impression that the 2008 change in the engine and exhaust system to lessen the emissions was the problem.
#131 of 133 Re: Bad fuel mpg [nme1]
Feb 14, 2011 (8:36 pm)
can't remember my gear ratio but it's higher, highway gears, I wish I had 3:73's. I mostly city drive with a moderate load on and I'm only getting 10 mpg. Empty with a family traveling I think I was getting about 12mpg
#132 of 133 F-250 Super Duty chip?
Aug 24, 2012 (7:18 am)
Purchased an F-250 super duty and have been averaging 9-12 MPG around town driving the posted speed limit. Will tow my 4,000 Lb boat this weekend for the first time and I'm concerned about the millage I will get. I understand installing a chip only has minor benefits to the fuel economy but I'm willing to try it. Any recommendations on what brand/chip/programer to go with to increase efficiency?
Thanks for any advice
#133 of 133 Re: Questions on my 2008 Ford F250 Crew Cab 6.4 Diesel [whoopbang123]
Aug 27, 2012 (10:06 am)
How did things work out with your planned upgrades?