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Pickups Ford F-Series 2008 Ford Super Duty
355 messages, Last post on Nov 13, 2009 at 9:21 AM
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| My 1999 F250 6-speed manual 2-wheel drive got 21+ MPG over 195000 miles. My New 08 F250 5-speed 4X4 auto gets about 16+ MPG (loads only 1000+ so far). I thought I had a problem until I read all the comments about what everybody else is getting. Note, I drive about 50% city and 50% Hy. When I did a trip to Calif. in Dec, E. TX I-10,80 MPH got me 15+ MPG. I guess I would like to look into this cold air intake but in Austin TX, it is not cold that much. | |
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Replying to: firecapn (Mar 14, 2008 5:00 am) 
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Replying to: albright (Mar 17, 2008 7:48 am) |
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| I just checked my mileage today and I'm up to 14.7mpg. some city, some highway, some towing. I was impressed compared the last few times I checked it! I now have 23000 miles on my truck. | |
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Trip results two weekends ago from Rock Hill to Myrtle Beach mostly highway running between 60 and 65 arriving midnight light traffic 18.5 solo. Trip home same route leaving late afternoon heavy traffic 17.3 mpg. Last weekend Rock Hill to Sanford NC Mixed highway and city 55 to 60 mph 18.2 mpg solo. Truck now has 20000 miles on it. Had oil and fuel filters changed at 18500 miles. Mileage seamed to improve about 1 mpg after this. This was at dealership using ford products. Don;t know if increase was due to service or summer grade fuels.
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| At dealership they kept telling me my mileage might improve after 20k. It was miserable 12.3, then 12,8 at 20k sure enough it started to get a little better. Ford sent me service satisfaction survey so I busted their chops over this mileage thing. My question if they can control it that much, how much are they still holding back? With the price of diesel plus the 6k option this really hurts. | |
| Took a trip to Key West from Louisville, KY towing my 34 ft fifth wheel. Loaded and with three persons. Got 9.5 mpg on way down 60 to 65 mph. Average 10.5 mpg on return. Had only 2500 miles on odometer when we left. No modifications needed. When driving solo on highway get about 18-20 mpg, at 60-65 mph. Avg around 15.5 around town. My friends tell me it will get better as the miles travelled increase. | |
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I have a 2008 F250 super duty, I live in Louisiana and pull a 16' box trailer with truck and trailer together it is 18,000 lbs. in hot weather it starts like a valve tapping then it blows white smoke out the exhaust, then it quits running. You let it set for between an Hour and a half, then it will start and run for about 30 to 40 miles then do it again. In cold weather no problem but in the hot summer weather in the south look out. I pulled the same trailer in Jan. to Michigan and nothing happened. But again in the south where it is hot it will leave you on the side of the road. ANY HELP WITH THIS PROBLEM?????????   
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Replying to: streetrod46 (Jun 17, 2008 9:41 am)
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| Recently got back from a trip up to Indiana Dunes. Spent the weekend and return on Sunday. Have a F-350, crew cab, 2WD with 6.4 Powerstroke. Got about 11.4 mpg going up and 11.9 mpg. Truck ran like a dream pulling my fifth wheel travel trailer ( approx 13500#s ). While enroute had a exhaust cleaning occur with no loss of power or noticable mpg loss and no smoking. With 6500 miles on the odometer all is great. | |
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