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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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#78 of 355 Mileage Update by tunaboat Aug 01, 2007 (5:47 am)
A follow up to my post #63 above RE: 2008 F-250 6.4L Diesel Crew Cab . Been hauling my 7,000 lbs travel trailer these past two weeks from Boston to Wyoming (3,000 miles) and I am only averaging 7 MPG at 70 to 75 MPH w AC on. While this is a major disappointment, the truck is a moose and pulls steady and strong. I really like the truck otherwise. I hope this mileage improves over time, but I am not optimistic given what folks are saying in this blog. Interestingly, I have only seen one other 2008 F-250 6.4L Diesel since I have been on the road. Is this because smart shoppers aren't buying them? Replies to this message: hitwholesale (Aug 11, 2007 4:44 pm) tunaboat (Aug 16, 2007 8:44 am) mholmes1 (Oct 31, 2007 7:56 pm)
#79 of 355 2008 F-350 Mileage Complaints and Axle Ratios by dadzpony Aug 03, 2007 (7:48 am)
I'm about to order a dually/diesel. I have read the concerns about mileage and am disappointed but...I need a truck like this. No one mentions axle ratios. Beyond the obvious that 3.73's SHOULD GET better mileage than 4.30's is it a mistake to order a 3.73 vs. a 4.10? Are people with 6mpg driving 4.30 trucks? is the 12mpg guy driving 3.73? The ratings are the same at 15,200. Is a 3.73 a looser in resale or towing? I'm towing a Goose Horse trailer 10-12,000 lbs. Thanx...
#80 of 355 Re: 08 f-250 SD Fuel Mileage and Satisfaction [kdean2608] by dadzpony Aug 03, 2007 (7:52 am)
Replying to: kdean2608 (Jul 22, 2007 6:15 pm) you are getting some of the best results. You didn't mention if your diesel or gas, and what is your axle ratio? Replies to this message: kdean2608 (Aug 06, 2007 3:45 am)
#81 of 355 Re: F-250 Mileage: Gas V-8 w/ 4.10 vs. Gas V-10 w/ 4.10 [fordguy7] by fordtoys99 Aug 05, 2007 (6:18 pm)
Replying to: fordguy7 (Jul 11, 2007 5:52 am) i have a 99 f350sd 6.8l motor w/ 169,570 miles and still runs strong on orig motor . my mileage is still around 12-13 mpg. ive also plow with it 3 years in a row. i rebuilt the tranny 2 years ago because it was slipping , but they couldnt find out what was wrong.
#82 of 355 Re: 08 f-250 SD Fuel Mileage and Satisfaction [dadzpony] by kdean2608 Aug 06, 2007 (3:45 am)
Replying to: dadzpony (Aug 03, 2007 7:52 am) diesel and axle is 3.73. 11.5 mph pulling load, 13.5 in town and probably 15 on highway. I have a trip computer which is not always accurate and sometimes confusing and shows an average of 13.4 most of the time, but you have to do the real math.
#83 of 355 Re: 2008 Mileage Experience From Owners [fishoregon] by kdean2608 Aug 06, 2007 (3:46 am)
Replying to: fishoregon (Jul 13, 2007 11:29 am) Can you update us on your experiences over last month with your truck, what you would out with repair and how gas mileage is doing now? thanks. Replies to this message: dbweaver (Sep 20, 2007 4:06 pm)
#84 of 355 Re: Mileage Update [tunaboat] by hitwholesale Aug 11, 2007 (4:44 pm)
Replying to: tunaboat (Aug 01, 2007 5:47 am) Same problem, I just recently purchased the same truck but I am only averaging about 7 mi to the gallon. I am not happy about that at all. Towing was at 6.50 mi per gallon going up hill with the ac on and I was getting around 9 towing coming down hill. Around town right now my digital gage says 9.50 avg but I did it the old fasion way and that came out at 7 mpg. Replies to this message: tunaboat (Aug 16, 2007 8:44 am) mholmes1 (Oct 31, 2007 7:56 pm)
#85 of 355 2008 F250 6.4L Good & Bad by pssample Aug 13, 2007 (7:19 am)
After 5047 miles, I discovered I can get good mileage, I averaged 18.2 mpg on recent 310 mile round-trip. The key is this was mainly highway driving & and I kept the rpm's at 2000 or below. I previously reported 12.6 in these forums.   I even achieved 12.4 towing my boat yesterday. That is, I did 12.4 until the upper radiator hose blew off on the way back from the lake. New boat, new truck - all covered in the uranium-enriched coolant they use now. If you heard the expression "glued, screwed & tattooed" that is what I was. I did get free towing - tow truck driver said mine was the 4th 2008 SD Diesel he's attended to for this problem. Only waited 2 hours in 100 degree heat.   I really like the truck, but I can think of a better radiator clamp design from the sixties that will outperform what they use now. I may just have to add those myself. Replies to this message: pssample (Aug 15, 2007 11:03 am)
#86 of 355 Re: 2008 F250 6.4L Good & Bad [pssample] by pssample Aug 15, 2007 (11:03 am)
Replying to: pssample (Aug 13, 2007 7:19 am) Follow up, Picked up from dealer: upper hose was off (at same dealer) at 600 miles for other service. They think it was just not pushed on properly then. Despite wrecker driver's earlier comment, they insist they don't know of any trend here.   Giving free tire rotation for my dirty boat, not bad compensation all in all.
#87 of 355 Re: Mileage Update [hitwholesale] by tunaboat Aug 16, 2007 (8:44 am)
Replying to: hitwholesale (Aug 11, 2007 4:44 pm) Yep, exact experience. My digital gauge always reads 2 to 3 MPG more that I am actually getting. What's with that? I stopped by my dealership yesterday to ask them about the crummy mileage. I was told that driving out of tow mode on flat surfaces would probably increase MPG. On my recent 7,000 mile trip, the best I got was 8.6 MPG (not very often) and the worst was 6.5 MPG. That is with 7,000 tt in tow. I'm getting a fifth wheel in September that maxes out at 13K GVWR. I'll be interested to see how the MPG is with that. Dealer also told me other makes (Chevy, Dodge, GMC) will be getting similarly low mileage for vehicles manufactured after January 2007 because of the "junk" they are required to put on for emissions. Anyone know if that is true with new Chevy or Dodge diesels? Replies to this message: mholmes1 (Oct 31, 2007 7:56 pm)

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