Gas Mileage towing 7 tons

[Bill2014]

Recently had an opportunity to haul a load of concrete block on a longer trip.



In Tow/Haul mode, the 6.4 averaged 11.2 mpg hauling the 7-ton loaded trailer.



The trailer has excellent brakes, so slowing and stopping is never an issue. But I can tell you, the trailer brakes need to be setup properly, because there's not a lot of excess braking capacity with the Power Wagon's stock brakes.

Transmission temp hovered around 175 degrees - and the tires that I keep at 65 psi cold, settled in at 73 psi rear and 70 psi front.


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[olyelr]

My towing experiences have been spot on with yours.... other than the fuel mileage With our 4 ton travel trailer we average more around 8.5-9 MPG. I suppose it has much more wind resistance, though.

Averaging 1700 miles per year?!?!?

[vanished]

And averaging 62 mph towing 2 tons over the recommended limits with no seatbelt on while taking pictures...


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[Bill2014]

My towing experiences have been spot on with yours.... other than the fuel mileage With our 4 ton travel trailer we average more around 8.5-9 MPG. I suppose it has much more wind resistance, though.

Averaging 1700 miles per year?!?!?

Yeah - my Power Wagon isn't my daily driver.

I have a '12 CTD mega cab that's low mileage, and an Expedition that's low mileage, and my Impala (with MDS) that's my daily driver.

I didn't really need to buy the Power Wagon, but I was debt free and wanted a low interest loan on something fun to keep my credit active.

[Bill2014]

And averaging 62 mph towing 2 tons over the recommended limits with no seatbelt on while taking pictures...


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Good point - I should have put it on cruise before I took that picture.

Sometimes I run with scissors too...

[Mule]

must be nice being at sea level...

yeah i get about 9 too....

[NickTF]

Any air bags or timbrens on that truck? She doesn't seem to squat terribly with that heavy of a load.

[OffroadTreks]

Pretty close to what I get towing the Airstream since I switched to the heavier 35's. Before I was averaging 12-13 easily.

[Bill2014]

Any air bags or timbrens on that truck? She doesn't seem to squat terribly with that heavy of a load.

Actually no - it's stock suspension. From the amount the rear end dropped, the tongue weight was probably around 1,300-1,500 pounds.

With the 10%-15% tongue weight rule, I tend to lean closer to the 10% tongue weight. Our trucks are heavy - so we can get away with lighter tongue weights - but don't try it with a half ton or mini van

Too little tongue weight and you will get some sway when a tractor trailer passes by (or it is really windy). Shift some weight from the back to the front and the occasional sway will vanish. You can do this with a camper too...

[olyelr]

Pretty close to what I get towing the Airstream since I switched to the heavier 35's. Before I was averaging 12-13 easily.

What the heck, my beat year wagon has a hard time getting 12-13 when empty.

[Will]

Pretty close to what I get towing the Airstream since I switched to the heavier 35's. Before I was averaging 12-13 easily.

What the heck, my beat year wagon has a hard time getting 12-13 when empty.

I got better mpg with taller tires, better highway ratio. Checked with calculator too, speedo is right. Best I got was 18 with the Yoko 37"s AT but they're as light as many 35" MTs.

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[DamageWagon]

Holy cow I got 13mpg on flat ground going 55-60 with no stops on 34's, I think around 1500-1600rpm. Getting 12-13 at highway speed with 7000lbs is amazing.

[agpilot]

must be nice being at sea level...

yeah i get about 9 too....

Eisenhower Tunnel in CO? Thats's a huge hill to pull serious weight on. I have seen youtube videos of trucks pulling heavy loads up that grade and it's no joke!

[Will]

I am real damn close to sea level though, on a hemifever tune also. Easily get 16 on hwy and average 12-13 without trying on the 37"I Hankook MTs. It doesn't take much to kill it though.

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[Mule]

must be nice being at sea level...

yeah i get about 9 too....

Eisenhower Tunnel in CO? Thats's a huge hill to pull serious weight on. I have seen youtube videos of trucks pulling heavy loads up that grade and it's no joke!

Yup. Do that drive fairly often in the winter.
Nicer/easier to do with just a sled in the bed, but the PW gets my trailer up the hill pretty well too. Much better than my half-ton did.

[TwinStick]

You guys all suck, getting that kind of mileage while towing ! But I knew that going in. 8-10 empty for me & 6-10 towing our new camper. I guess you know your geared low when you get the same empty or loaded.

[Z's2016PW]

I just finished my 2 week vacation with the family. We drove 2200 miles round trip. The truck, trailer, and cargo combined for roughly 14000 pounds. With 315s on the Wagon the average was 9 going up and down passes and elevation. Also had to deal with a lot of headwind.