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2008 Ford Super Duty

355 messages,  Last post on Nov 13, 2009 at 9:21 AM

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What is this discussion about? Ford F-250 Super Duty, Ford F-350 Super Duty, Truck

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#241 of 355 Fuel mileage by rga520c Oct 25, 2008 (7:14 am)
I have a 2008 6.4 ltr.F-250 super duty with about 3000 miles on the trk, and at best I am getting around 10-12 avg. MPG is this what I should expect to be the normal for this or will it get better and what could I possibly do to improve the mpg short of getting rid of the truck. I absolutely love the trk other than this.   Very concerned F-250 owner Replies to this message: scarab36 (Oct 25, 2008 8:00 am) diehardford (Oct 27, 2008 7:55 pm)
#242 of 355 Re: Fuel mileage [rga520c] by scarab36 Oct 25, 2008 (8:00 am)
Replying to: rga520c (Oct 25, 2008 7:14 am) I have an 08 f350 crew 4wd, srw. Bought new mileage sucked like yours. It's been getting better the longer I have the truck. now at 36,000 I'm getting 16-17 freeway empty at 70mph 10-11 towing a trailer weighing approx 8,000. around town 12-15 love the truck but have used a lot of fuel to get to where I am now
#243 of 355 Re: Fuel mileage [rga520c] by diehardford Oct 27, 2008 (7:55 pm)
Replying to: rga520c (Oct 25, 2008 7:14 am) Your mileage should continue to improve. I have a friend who has a 250 just like mind except color who was only getting about 11mpg at first. He said at about 50 thousand his made a drastic improvement in mileage. At 32000 my latest trip gave me 19.2 on one stretch of interstate driving. This was pure interstate with cruse set on 65. For the whole trip I averaged 17.8mpg. This was blue ridge parkway starting at virginia state line to Ronoke and then interstate back home to Rock Hill SC, Truck continues to give me flawless service.
#244 of 355 2 bad 6.4 diesel engines by streetrod46 Oct 28, 2008 (5:41 pm)
I have a 2008 F250 Super Duty at 13,000 miles the engine went out with a hole in the piston(dealer said the glow plug tip broke off and fell in the cyclinder) Ford installed a new motor????. At 14,000 miles this engine goes out going down the road with no warning(Ford says that the #8 piston has a hole in the piston????. I was wondering if maybe the computer has more fuel going into the #8 piston which causes the firing of the diesel fuel to wear a hole in the piston.   I have been driving fords for years but now I am begining to think about changing over to something else.
#245 of 355 Re: 2008 F250 over exhaust temp. engine quits running [bigdaddy101] by rentals1968 Nov 03, 2008 (3:41 pm)
Replying to: bigdaddy101 (Jul 18, 2008 11:08 am) Bigdaddy101- can you let me know the outcome of this? F450 with 22K miles in in the shop now with a blown engine. Ford says due to oil not being changed. they also found a hole in the radiator that they are claiming responsibility for due to a factory defect. When towed in it had no coolant. The reason for the tow was flames shooting out of the exhaust and Ford 1st said it was the radiator, then later in the day changed their minds & said the engine was blown. This makes no sense!
#246 of 355 Also Radiator by streetrod46 Nov 05, 2008 (4:33 am)
rentals1968: Also was told that the radiator was the cause of the engine blown, said they had a hole in the factory seam of the radiator. Talked with the service manager, he said they were not any fluid in the radiator. But the gauge didn't show hot neither did the smell of antifreeze show up at anytime. They put a rebuilt engine and a new radiator in the truck. He said the coolant does not get to the back of the engine and that since it is tucked up under the firewall that it why the #8 piston area gets the hottest and burns a hole in the piston. Will wait 13 to 14,000 more miles and see if it does it again.
#247 of 355 05 F350 Switches by fordman69 Dec 19, 2008 (5:47 pm)
I have an 05 and I am installing the 4 axu.switches in the dash. I cannot find the plug in under the dash but I found the ones out under the hood. There are 2 plugs that plug into the brake box but cannot find the one for the switches. Help.........
#248 of 355 check engine light by dbweaver Dec 21, 2008 (8:03 pm)
My check engine light comes on constantly in my 08 F250 6.4liter Powerstroke. I took it to the dealer, they said to drain the fuel/water separator. I did and the light went out. I have been averaging 10 mpg towing 10,000lb. I went to Circleville, Ohio with my trailer empty and my check engine light on and got 7mpg.I drained the water separator 3 times but the light never went out. I loaded a 7,000lb truck on my trailer, the light went out and I got 10.2mpg on the way back. I have 45,000 miles on the truck now. Has anyone else had their check engine light come on constantly?
#249 of 355 Re: latest mileage results 08 [diehardford] by 2scoobys Jan 09, 2009 (7:39 am)
Replying to: diehardford (Oct 06, 2008 6:55 pm) ford just released an update for the 6.4L engine computer. My brothers f250 now gets another 150 km a tank. I had a 2006 6.0L put a K&N ait flow kit in it was getting 937 Km a tank highway. The filter paid for itself in fuel savings an increase of almost 200 km a tank highway, cost was 400 canadian. I did install myself in an hour,really easy to do.I now have a 2008 f350 6.4 and I'm installing a roush cold air intake.I will give you an update on the mileage increase in a week or so. The only other recommendation I have is duel exhaust.
#250 of 355 getting better gas mileage by 2scoobys Jan 09, 2009 (8:18 am)
ford just released an update for 6.4L engine computer. It gave my brothers 2008 f250 an extra 150 km a tank.I installed a k&n air flow kit in my 6.0L 2006 and was getting an extra 200 km a tank higway. I will be installing a roush cold air intake in my new 6.4L 2008 next week.I will post the increase in fuel mileage. The only other add on I can think of is duel exhaust. Replies to this message: dbweaver (Jan 10, 2009 6:53 pm) judgejustin (Jan 11, 2009 6:11 pm) dbweaver (Jan 11, 2009 7:15 pm) judgejustin (Jan 11, 2009 8:02 pm)

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