towing mileage of trucks

There is one thing that is perfectly clear on this topic. It is virtually impossible to compare ACTUAL mileage from one user to the next due to the various methods of calculation....

But, I agree that most will get 8-10 towing and 15-20 not towing. Go pick your favorite color.

Just get what you want and be thankful that you dont get the same 3MPG, yes thats right, 3MPG

laknox wrote:

Cummins12V98 wrote:
My 98 with 3rd gen take offs for tires I had to add 5% to my miles driven then divide by gallons to be ACCURATE.

Going from the OEM 245s to 265s on my truck puts me 4% =under= actual on the speedo/odo. I add 4 miles for every 100 when calc'ing mpg. It DO make a difference! For speed, I use my ScanGauge II, which is calibrated to read 4% over indicated and is within 0.5 mph of my GPS. OTOH, my '11 Sonata reads 4% HIGH, so I get even worse mileage than the liar, er, dash reports. Before I realized the odo error, I would get 1-1.5 mpg LESS than the dash reported, around town. On the highway, it's about 1.5-2.5 mpg difference. Add that 4% error on top, and I lose about 12 miles per highway tank, which boosts that difference to 2.5-3.5 mpg. Hyundai keeps telling me that I'm "within spec". Yeah, right... Oh, tires are OEM size.

Lyle

This is mostly true for gas, not diesel. diesel engines are true heat engines compared to gas engines, they only need an amount of fuel (energy, fuel) to move their parts. There are several things that affect fuel efficiency in a diesel engine which are friction, and power efficiency from fuel burn. EGRs affect efficiency, Injection events and timing affect efficiency, and heat loss affects efficiency

So if you have more injection events that happen after top dead center, you burn more fuel, if your egr is running, you burn more fuel because you lose power and must make it up by adding more fuel. Friction losses and engine design are pretty obvious

Cummins12V98 wrote:
My 98 with 3rd gen take offs for tires I had to add 5% to my miles driven then divide by gallons to be ACCURATE.

Going from the OEM 245s to 265s on my truck puts me 4% =under= actual on the speedo/odo. I add 4 miles for every 100 when calc'ing mpg. It DO make a difference! For speed, I use my ScanGauge II, which is calibrated to read 4% over indicated and is within 0.5 mph of my GPS. OTOH, my '11 Sonata reads 4% HIGH, so I get even worse mileage than the liar, er, dash reports. Before I realized the odo error, I would get 1-1.5 mpg LESS than the dash reported, around town. On the highway, it's about 1.5-2.5 mpg difference. Add that 4% error on top, and I lose about 12 miles per highway tank, which boosts that difference to 2.5-3.5 mpg. Hyundai keeps telling me that I'm "within spec". Yeah, right... Oh, tires are OEM size.

Lyle

I believe all of the diesel engines have similar fuel efficiency. The only thing that may make the newer engines appear to get worse fuel mileage as compared to earlier models is the increased hp and torque ratings. If one uses that energy, the fuel consumption will increase to develop the power. If one very conservative and does not have a lead foot the old vs newer engines will be similar. It get rather complicated and I suspect the newer Ford 6.7 vs the older Ford 6.7 is not as economical over-all, but they do produce more power which translates to higher fuel consumption. Marketing is better for more power these days than economy. Now days it is more of a macho thing than necessity.

There was no Widetrack option when I ordered my 17, and there is no Widetrack option listed in the 18 or 19 Ordering Guides.

I thought the 2017.18 ford f350 DRW no longer were optioned with the wide track front axle? I even tried to build one and it never seemed to be an option. Which led me to believe ford has now made it so you must buy the 450 if you want that.

Some impressive fuel mileage...guess my truck has a leaky tank! I get about 14.8mpg empty at 70 on the highway. towing I have gotten 10mpg once while doing 60, typically I get about 9mpg, this is while towing 16k.

Speed, grade and wind play such a big part. I have a 2017 F350 DRW w/ 3.55 gears pulling a Mobile Suites 38RSSA (probably 18k-19K lbs). On a recent trip from Michigan to Texas and back, I had tanks ranging from 7.9 to 9.5 mpg. I tend to run the posted speed limit up to 75 mph. Being on those 55 and 60 mph roads gives a definite boost in economy. I've found that each 5 mph is worth about .5 mpg.

sbergherr wrote:
2016 f350 dually with 3.73 gears pulling a 43' 5er averaged 8.9 over 1500 miles driving last week.

Truck is 6.7l diesel with delete kit running tow tune

Sounds like some HONEST fuel economy numbers!

My truck in my signature is stock and gets about 16 mpg not towing and between 10 - 11 mpg towing.