Like another post stated teh MPG can vary with the load and oter factors. All I can tell you for sure is my rig gets 10 to 11 mpg towing our fiver. THE total weight of the rig is 19,600 pounds. Of that around 8,000 is truck.
THe worst I ever got was 9mpg towing on the "Blue Ridge Parkway".
Can't tell you a figure for on the highway empty. It has only been on one trip without the trailer. That was only two tanks of fuel. It appeared to be a little over 17 mpg with the wind deflector still on..... Not a good test though...
Mileage seems reasonable, especially if they drove about 70 mph most of the way. I get much better mileage if I stay at about 65mph. I get 12 at 65mph and a little over 10 at 72 mph with a 7500# fiver. My PSD loves 1700-1900 rpms, doesn't like it over 2,000 rpms when it comes to mileage.
2002 Ford F250SD Crew Cab, PSD, auto trans, 3.73, Bright Red Lariat
2002 Cougar 278EFS (RK)- love it
Yamaha YG2800i generator
As the engine gets more broken in(after 10,000 miles they say) the milage should get better. My beast just turned over 10,000 and I can't wait to hook up the camper and go somewhere. Right now in Minnesota it is snowing.
Empty, I've got as much as 19 mpg and pulling the camper (only once with only 1,000 miles on truck) I got about 11 mpg.
I love this beast.
Are you guys quoting real-world, pump-based numbers, or the readout of the onboard computer? I haven't been too impressed by the accuracy of the console computer vs. the "miles divided by gallons" method.
I tow a 13,000 lb Montana Big Sky with my 01 PSD 4x4, extended cab and get 9-12 depending on terrain, wind, etc. at about 62 mph. Solo, I get 15-19mpg. I have a chip and large exhaust, which improved my solo mileage about 2mpg, and towing about 1 mpg. I have 34,000 miles on the truck, mostly towing.
Forrest & Donna
01 F350 PSD 4x4, 01 3670 Montana Big Sky
I drool with envy at some of the mpg ratings I see. I only get 11 steady loaded or empty, I'sve checked the computer against the volume and it matches. Any ideas as I would really like to be in the 15-18 range.
Dave, Karen, (Ashley, Matthew and Daniel)
o 2001 Ford Excursion. 4X4 7.3L Turbo Diesel w/K&N air filter,
o 3:73 rear and Hypertec power chip.
o All towing a 2002 32' Jayco 314BHS E-mail me at email@example.com
No one knows why some PSD's do better than others. But, there may be hope. Check out Ford-Diesel.com and go to the "Engines & Drive Train" section on the forum. There is some really good information on this very problem. Seems most diesels have a return line from the engine to the tank. The PSD, unlike the International T 444 (which is the same engine) does not have a return line from the engine to the fuel tank and as a result the performance may suffer. The result can be a loss of MPG and and increase in engine noise. There are a couple of guys over there who have figured out how to correct this and all the results have been positive. After installing their mod the engines run quiter and fuel mileage seems to go up. The best part is that all this should only cost you about $20 in parts.
If I was getting low fuel mileage when empty, less than 15mpg and under 2000rpm max, I would be looking for a air leak in the fuel system.
I'm getting a steady 19.2mpg with towing short 24K GCW loads at under 1700rpm 4 times a tank and 80/20 highway miles at 60mph empty the rest of the tank. Only 4500 miles on the truck. Every fill up is the same, to the neck, Flying J 2D, same pump. I did find that Power Service lowered mileage buy 1 to 1.5 mpg so I quit using it.
You might suggest to your dad to keep his foot off the floor board while towing. Maybe try a slow tow keeping the engine to under 2000rpm max and see if the mileage improves. Using close to maxmium available power also uses maxmium fuel. You can't have both at the same time.
02 F350, 4x6, CC, DRW, PSD, 6spd, 3:73
32ft Serria 10yr 100% Solar
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