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2008 Ford Super Duty

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

You are in the Ford F-Series Forum. Your Host is kcram

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


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#85 of 355
2008 F250 6.4L Good & Bad by pssample
Aug 13, 2007 (7:19 am)
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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.
#86 of 355
Re: 2008 F250 6.4L Good & Bad [pssample] by pssample
Aug 15, 2007 (11:03 am)
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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)
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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?
#88 of 355
2008 F250 6.4 by vinnysdad
Aug 17, 2007 (4:34 pm)
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Love the truck except for the gas mileage. 12mpg combined city and a little highway without a trailer. With the trailer about 8000lb. 13mpg at 65 mph and 9mpg at 75 mph.
Coin pocket broke the first time I opened it. Leaks diesel fuel from the middle of the engine compartment, haven't had a chance to take it in yet. Good thing the truck wasn't expensive.
#89 of 355
Re: 2008 Mileage Experience From Owners [paasch] by ggist
Aug 18, 2007 (8:42 pm)
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Replying to: paasch (May 29, 2007 6:40 am)

Same here on the 2008 f350 6.4. I pull a 13,000 horse tralier and avg 8mpg. My dealer acts like I'm ET from space. I have talked to eight other cowboy's with same truck spec's and pull similar weight and of course they have the same issue.
 
I did so much better with my 2003 f250 i wish i had it back. I pay too much for a truck to only gets 8mpg. Folks, Ford has a problem and it is eating my lunch when I travel 4,500 miles and half to stop and fuel every 258 miles:( Help....
#90 of 355
Lets Talk Speed, Is there a governor on this thing??? by pssample
Aug 20, 2007 (9:54 am)
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Took a long trip Thursday afternoon, decided to see what this truck could do. I thought the fuel injection had a problem as once I hit 95 I couldn't get it going any faster.
 
Two days later on way home, find a stretch of highway and keep the pedal on the floor: won't go 1 mph over 95 & the rpms are not racing. What gives???
#91 of 355
Yes there is a governor. by mschmal
Aug 20, 2007 (2:33 pm)
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It won't let you exceed the speed limit of the tires.
 
Mark.
#92 of 355
Yes there is a governor - Too Bad by pssample
Aug 21, 2007 (7:37 am)
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It was a shame/humiliating to watch the guy in front of me pull away in his Cummins Dodge 6 banger last Saturday. In fact, it was embarrassing - for me and I am sure for Ford as well.
 
Why all this horsepower (350) if they're going to shut it down at 95? My tires can certainly handle more speed than that - they aren't off-road or even off-road blend. How do I get ungoverned?
#93 of 355
F-250 Lariet 4x4 P/S by garyszmr
Aug 26, 2007 (6:38 am)
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Ordered truck on Jul 24th, checked with dealer y-day. says should be here week of Sep 17th. I've been very happy about decision, until I read this site! this will be my first Ford, Always bought Chevy but i don't like the new Chevy 2500, and Dodge is a "no Way". so i'am going through with order, if? it turns out to be bad decision, "I know you told me so"...
#94 of 355
Problems, by mschmal
Aug 26, 2007 (8:04 am)
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The only people who are having problems are the people who are abusing the truck by moding it, by driving at accessive speeds. Yes IMHO, driving a 7000 pound vehicle at over 95 mph on a public road should land you in jail.
 
People who pull away like jackrabbits from every light etc.
 
If you act like an adult. You will not likely have problems or bad fuel econ.

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