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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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#230 of 355 08 super duty by judgejustin Jun 18, 2008 (8:24 pm)
Can any one give a suggestion on which air intake they like for the 08 supers. I hate my new 250 and am desperately trying to do something to improve towing and maybe mpg when empty. I only get about 11 around town. I did the worst thing when I traded my 02 350 with the 7.3 in for this hunk of crap.
#233 of 355 CREW F350 6.4 4x4 by petersrc Jul 15, 2008 (2:30 pm)
Some of you, who are getting upwards of 10 MPG -------- consider yourselves LUCKY! I'm currently RV'g throughout Washington, Idaho, British Columbia. While our Lariat is a great truck in most respects, it's a PIG when it comes to economy ---------- averaging less than 8MPG with a 10,000lb 5th, while trying to do everything to "go easy" on fuel economy. 80PSI in tires, easy starts, 55MPH, TowHaul on where needed, etc. My brother (after 9 new F350 Diesels in the past 10 years) is trying Dodge's "equivalent" with the 6.7 Cummins. He consistently gets 40>50% better economy on the same trip. BUMMER! RUDY
#234 of 355 08 F-250 by fordfan08 Jul 17, 2008 (11:46 am)
I'm looking into getting an 08 F-250, but I'm not sure what Engine-Transmission-Rear Axle Ratio to get: 5.4L V-8 Gas-5 speed Auto Transmission-3.73/4.10, 6.8L V-10 Gas-5 speed Auto Transmission-4.10/4.30, 6.4L V-8 Diesel-5 speed Auto Transmission-3.55/3.73. What will give me better MPGs?
#235 of 355 transmission? by contractnow Jul 17, 2008 (1:37 pm)
You need to decided what your hauling then decide on trans. my '08 250 gets 15-16 mpg it's a 373 rear. and I haul nothing. If your huling heavy stuff you need the appropriate rear. Diesel will give you the best mpg but reg. gas is cheaper. So you'll have to do the math and decide, Sorry, but good luck! I love my truck other than the diesel price.
#236 of 355 Re: 2008 F250 over exhaust temp. engine quits running [streetrod46] by bigdaddy101 Jul 18, 2008 (11:08 am)
Replying to: streetrod46 (Jun 17, 2008 9:41 am) PLEASE GO TO DEALER SAME THING HAPPENED TO ME YOUR EGR IS GOING OUT AND THEN YOUR ENGINE WILL OVER HEAT AND BLOW NOW I'M STUCK WITH A BLOWN ENGINE AND FORD WANT REPLACE THERE FULL OF IT AND KNOW THE EGR'S ARE BAD... Replies to this message: rentals1968 (Nov 03, 2008 3:41 pm)
#237 of 355 2008 F350 AUX Switch pigtail location under dash ? by armedbear357 Aug 09, 2008 (7:17 am)
Anyone know where to locate the 4 pigtails for the aux switches on 08 f350 ? Not in the same as my old 05 f350. Any Help ? Thanks !
#238 of 355 Re: latest mileage results 08 [diehardford] by rcuellar26 Oct 05, 2008 (7:56 am)
Replying to: diehardford (May 19, 2008 4:29 pm) Lucky you. I just got through with a 2600 mile round trip with my '08 F350. With only 16K miles on it, it broke down in Pilot Point Texas. Fuel injector stuck open, push rod bent and booster sensor blown - 3 days later and only 8mpg pulling a very light load. I drove 70mph trying to improve mile but no use - The 350 super duty is a dog with no power and crappy gas milage Replies to this message: diehardford (Oct 06, 2008 6:55 pm) 2scoobys (Jan 09, 2009 7:39 am)
#239 of 355 Re: latest mileage results 08 [rcuellar26] by diehardford Oct 06, 2008 (6:55 pm)
Replying to: rcuellar26 (Oct 05, 2008 7:56 am) I hate that you are having problems with your 350. My 250 continues to give me great service. I took it to the dealer saturday for its 30000 mile service and then the wife and I headed up the blue ridge parkway toward mt mitchell to see the fall colors. 290 mile trip averaged 15.5 mpg. Back in august we took the camper down to the outer banks. If I held it down between 60 and 65 I got about 10 mpg. However on one stretch lets say I was in a hurry to get the beach. Averaging about 80 to 85 mph mileage dropped to about 7mpg. Camper weighs about 9000 lbs empty is 35 feet long and 11 1/2 feet high. I easley had another 2000 lbs in cargo and passengers. At 85 mph truck had power to spare. Needless to say I'm still very happy with mine. I still average around 14 mpg in my day to day driving. I hope you can get the problems with your truck resolved. You might try to have the dealer re flash the main computer. It controls the fuel and air ratios and that has a lot to do with power and mileage. Good Luck Replies to this message: 2scoobys (Jan 09, 2009 7:39 am)

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