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I average 15.1 MPG cumulative over 22K miles since new. The mileage is still increasing. I don't tow. I don't use diesel kleen. I have 10 highway trips of 35 miles every week and 100+ miles of offroad driving/week. The rest is stop and go.
If I wanted 20mpg I could get 20 mpg and so could anyone one else in a recent vehicle. It just depends on how much time you have to **** around. The speed limits in AZ are 75.
I have had both 7.3 and 6 litre 2 valve v-10 and now have the 05 v-10. I hear all these diesel guys talking about there gas mileage bieng 17-20 mpg is unrealistic. I never got that kind of mileage out of any of my trucks. I think when guys are talking that they are getting high mileage I just find that realy hard to believe. These trucks are heavy with large faces lots of wind resistance so if your getting 10-15 I would be very happy with that.
I think that ... what does it matter what I think. I know what mpg I get, when someone asks I may post what I get. In the end I am the one paying the fuel bill. Why would I lie? No reason to, but know what? y'all can think whatever ya want. I don't care if you believe I get 10mpg or I get 100mpg. Someone asks and I'll give my $0.02.
BTW, I can get from 12mpg (city driving hammering it to 3000+rpm at every light) upto just over 21mpg on a flat highway with the CC set at 65. I have come to realize it is 45% how you drive, 45% where you drive, 5% weather, and 5% luck of the draw for what you drive off the lot.
Another one of the reasons I don't believe those claims of 20 MPG is when you travel in groups with people. About 420 miles is all most of them with Short Beds can travel before they start pulling off to get fuel!! About the most can go before I really start looking is 570 (long Bed).
When comparing the apples and the oranges, don't forget the terrain. Everybody compares the truck config but forget to include the type and elevation of "highway" they're on when getting their mileage. One who's driving on long flat highways of the mid-west will get way better "highway" mileage then those of us that have mountainous highways.
I've got 7200 miles and the best I've seen is 17 with an average of 15 but I started out at 10. My mileage has gradually gotten better and I owe it to my TT and the mountains.
I just purchased and put on apprx. 1200 miles on my 06 PSD SC LB Lariat Fx4. Montana to California. Plenty of Mt. passes, 2 lane roads, freeways etc.
Hand calculated averages per tank; 17 MPG, 17.38 MPG, 15.6 MPG and 17.95 MPG. Blended average of 16.98. Modest driving for the most part. A shade below 2,000 RPM is reponsible for the 17 MPG range. Generally right at or less than 70MPH with occasional romps to 75-85 MPH for passing. The 15.6 range was 2 hours of 85-90 MPH stuff and close to three hours of CC 80 MPH, Nevada driving.
The onboard computer was consistenly a bit higher than hand calculate #'s. Not too bad though.
If I had the patience to drive 55 to 60 I wouldn't be suprise to see close to 18.5 to 19 MPH.
Have an Excursion. With just me on board, the "Forest" weighs 8,050 lb, which I believe is a bit more than most F250 or F350 trucks. It may have slightly better aerodynamics (smoother brick?).
Anyway, at 64K miles, I can definitely claim to get 14-15 mpg in mixed commuting driving. On the highway, if I keep RPM just at 2000 rpm (70 mph), I get an honest 19-20 mpg.
Recently, I have modified my driving style to see if I can "eek" a bit more mileage out. I can keep it above 15 mpg around town by accelerating more slowly and avoiding sudden stops whenever possible.
Have an Excursion. With just me on board, the "Forest" weighs 8,050 lb, which I believe is a bit more than most F250 or F350 trucks. It may have slightly better aerodynamics (smoother brick?).
You're about 400lbs more than an 05 F350 4x4 SC short bed w/ 210 lbs in the passenger seat. I was right at 7,600 w/ a full tank of fuel. I'm about to add about 200 lbs this weekend when I install my plow push plates.
I'm running consistantly 16 mpg right now on the factory oil and 3,400 miles. I'm only assuming I'll pick up one or two with synthetic oil. I'm also running 75-80 mph on the highway and I like to feel the turbo... I should be fairly exact with my mileage because I fill it to about six inches below the filler cap.
Oh, wait, belay all that. I must be a LIAR. I must only get 12 mpg because that's what some other mush is getting.... what kind of a putz would accuse guys of lying about thier gas mileage that has no clue about their climate, geographical conditions, driving habits or other things that affect milage?
Last edited by sgthawkusmc; Sep 30, 2005 at 02:21 PM.
I only have 3100 miles on my 05. I have a F350 regular cab, 6 speed, 4x4. It has 18" wheels with stock contis. At 75 mph, the tach reads 2050. Bone stock, exept zoodad mod. I have been on a feww 300+ mile trips, one way. I don't know if the zoodad helps any, i did it with 800 miles on truck. I am not a liar and I can do math (MS in Engineering). I have hand calculated 20.3 at a high with cruise set at 75 on I90 going accross SD. Average on longer trips has been 18.8-19.0. In town driving about 16. But, this is the smallest and probably most economical version of the Super Duty with the exception of getting a 4x2. I think configuration has everything to do with it. The manual trans. is probably the #1 variable.
I was talking to a guy yesterday who said he asked a guy with a dodge what he was getting. He said he told him 38mpg on his Dually. I told him that was impossible.
My 04 F-250 got 22 mpg a couple times on trip. But it averages around 18. I get 12-13 mpg pulling my 5th wheel.
Two of my friends have 04 Dodge CC SRW Cummins 600, one is a SB and the other is a LB. Both get the exact same average mileage of 15.6 mpg as indicated on their overhead trip computers. Interesting note: When one of my friends and I were checking his truck's overhead, we also checked my truck... Mine read 17.6 average mpg- But then again, I am a Liar
2004 F350 FX4 with 43000 miles. I use to get 19-20 mpg with stock tires(75-80 mph), but recently changed to 285's MT. A couple weeks ago I drove from SC to MD and back with a two horse trailer and was getting around 11-12 mpg (70mph). Then I drove from SC to MS two weeks ago towing nothing and got 15 mpg (75-80 mph). Trying to figure out how I can get back to 19-20 mpg without giving up the 285's and going back to stock.
recently changed to 285's MT and got 15 mpg (75-80 mph). Trying to figure out how I can get back to 19-20 mpg without giving up the 285's and going back to stock.
Very difficult to accomplish- Perhaps you could go to a more "highway friendly" A/T such as the Bridgestone Revo... I experience a similar drop in mpg when I run my winter studded Mud Terrains (285's) and have decided that my next set of snow tires will be the Cooper Discoverer M + S in 265. They won't look as good but hopefully the mpg will be better-
I checked first-hand with racing friends on their mpg before getting an Excursion -- they all have turbo-diesels built since 2000 and tow enclosed trailers ranging from 6000-15,000lbs laden. We all tend to tow medium haul distances (200-600 miles each way) and nobody is running off-road or all-terrain tires or suspension.
They all report from 12mpg to 20mpg towing at 65-75mph.
I am quite sure not one of them is lying because they keep records at the pump and on the odometer, this is not just "oh, I guess, about..." or reading the bs-o-meter.
Personally, I've towed a 10,000lb enclosed box trailer at 70mph for 500 miles and averaged 18mpg in an '01 7.3 PSD Excursion. It ran a flash from one of the tuners, but otherwise stock and well-maintained.
There seems to be plenty of "assertions" on both sides of the argument.
I just got my X 6.0, so I'll soon learn for myself at the pump.
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