We where in the market to buy a class A diesel pusher within the next 6 mos. But with the new leadership in DC I’m afraid of the fuel cost going nuts. Therefore we have been thinking about buying a new DIESEL1 ton DRW pickup and going the 5th Wh route. Curious as to what’s the typical fuel mileage pulling a 5er with a diesel pickup.PS. Anyone have experience on towing a tag V 5er with the same vehicle and comparing mileage?

It is not just fuel mileage you have to consider, especially if you are looking at a Ford truck with the new 7.3L gasoline engine ! You have to add in the cost of DEF and the much more expensive oil and filter changes !

A few years back we spent most of a couple of years on the road in a DP. Fuel prices rose to over $5 a gallon. On one occasion I put in $400 worth, and I think I maxed at $500 Canadian once!But in the total picture of the costs of RV'ing it seemed manageable.I'd say if you can afford the rig you like, don't obsess about what might or might not happen in the future. Just do it!

theoldwizard1 wrote:It is not just fuel mileage you have to consider, especially if you are looking at a Ford truck with the new 7.3L gasoline engine ! You have to add in the cost of DEF and the much more expensive oil and filter changes !Well the 7.3 gas engine doesn’t use DEF. If you are looking at a gas engine to diesel, only need about half the number of oil changes, Ram can go 15,000 miles. My 2001 Ram Cummins I changed the oil every 10,000 miles, no issues and inside still clean at 300,000 miles, better towing mileage and better power.We get about 11mpg towing 13,000#.

theoldwizard1 wrote:It is not just fuel mileage you have to consider, especially if you are looking at a Ford truck with the new 7.3L gasoline engine ! You have to add in the cost of DEF and the much more expensive oil and filter changes !DEF in a gasoline engine? :h

My question wasn’t about gas V diesel. It’s fuel mileage

Fuel mileage | Good Sam Community

4x4ord
Explorer III
Mar 14, 2021
I did a 300 mile highway, round trip yesterday with maybe 5% city driving mixed in. The truck did a regen during the trip and I drove about 70 mph when on the highway. Very little wind and flat ground. I averaged 19.2 mpg (US).
justme
Explorer
Mar 05, 2021
When people post the fuel miles, they should include speed, wind, weight, elevation, type of roads, fuel type and etc. to get a better idea of their experience. Remember, friction increase by the square of the speed which makes speed and winds more important as well as weight.
Cummins12V98
Explorer III
Mar 01, 2021
"What is your typical mileage at say 65 mph on a calm day?
Is your Ram mileage meter accurate?
Can you change a calibration constant within the DIC to increase the accuracy of the Ram meter?"

That was my 2011 RAM HO pulling a Mobile Suites at 29k combined with 3.42 gears.

I normally towed at 62 with that ruck and would "AVERAGE" West Coast 9.5mpg.

It was fairly accurate at lower mileage and be off plus by .4 mpg at 9.5.

No adjustments possible.
4x4ord
Explorer III
Mar 01, 2021
Cummins12V98 wrote:
4x4ord wrote:
Cummins12V98 wrote:
4x4ord wrote:
I completed my first trip towing a tandem dually gooseneck with my 2021 F350. 1100 km round trip. Got about 12 mpg one way with the deck empty and 6.9 mpg loaded coming back. (US gallons)

Hope you had a headwind and running 70 to get 6.9.

There was a stretch where I had a bit of a wind coming at me at about a 45 degree angle .... I was getting just over 5 mpg then. Thankfully most of the trip didn't have much wind. Probably averaged about 65 mph.

Yea wind does matter! I was Westbound on Hwy 40 trying to get the HE!! outa OK as it was COLD with a 40mph head wind. One point my fuel economy was 5mpg.

What is your typical mileage at say 65 mph on a calm day?
Is your Ram mileage meter accurate?
Can you change a calibration constant within the DIC to increase the accuracy of the Ram meter?
Cummins12V98
Explorer III
Mar 01, 2021
4x4ord wrote:
Cummins12V98 wrote:
4x4ord wrote:
I completed my first trip towing a tandem dually gooseneck with my 2021 F350. 1100 km round trip. Got about 12 mpg one way with the deck empty and 6.9 mpg loaded coming back. (US gallons)

Hope you had a headwind and running 70 to get 6.9.

There was a stretch where I had a bit of a wind coming at me at about a 45 degree angle .... I was getting just over 5 mpg then. Thankfully most of the trip didn't have much wind. Probably averaged about 65 mph.

Yea wind does matter! I was Westbound on Hwy 40 trying to get the HE!! outa OK as it was COLD with a 40mph head wind. One point my fuel economy was 5mpg.
4x4ord
Explorer III
Mar 01, 2021
Cummins12V98 wrote:
4x4ord wrote:
I completed my first trip towing a tandem dually gooseneck with my 2021 F350. 1100 km round trip. Got about 12 mpg one way with the deck empty and 6.9 mpg loaded coming back. (US gallons)

Hope you had a headwind and running 70 to get 6.9.

There was a stretch where I had a bit of a wind coming at me at about a 45 degree angle .... I was getting just over 5 mpg then. Thankfully most of the trip didn't have much wind. Probably averaged about 65 mph.
JIMNLIN
Explorer III
Mar 01, 2021
ferndaleflyer wrote:
Exactly. My mileage and power all dropped coming home from FL. Guess you would just deal with it and drive on with fuel prices escalating? Took it in and it was more than just the filters. $160 fixed it though.

When I was on the road towing for a living we watched our mpg every tank. Every truck had a clip board and a pencil on a string for figuring mpgs/other needs. This was years before the computer in trucks.

Today I watch mostly EGTs and boost levels on the Cummins/ Westach but still check every other tank mpgs.

My vehicles fuel mpgs is important to me....for several reasons already talked about.
4x4ord
Explorer III
Feb 28, 2021
Lynnmor wrote:
ferndaleflyer wrote:
Exactly. My mileage and power all dropped coming home from FL. Guess you would just deal with it and drive on with fuel prices escalating? Took it in and it was more than just the filters. $160 fixed it though.

Exactly what?
Traveling from a warm state to where winter fuel is sold, one can expect a drop in mileage.
What did you buy for $160? "Took it in" means what or where?

Exactly. :)
Lynnmor
Explorer
Feb 28, 2021
ferndaleflyer wrote:
Exactly. My mileage and power all dropped coming home from FL. Guess you would just deal with it and drive on with fuel prices escalating? Took it in and it was more than just the filters. $160 fixed it though.

Exactly what?
Traveling from a warm state to where winter fuel is sold, one can expect a drop in mileage.
What did you buy for $160? "Took it in" means what or where?
Cummins12V98
Explorer III
Feb 28, 2021
4x4ord wrote:
I completed my first trip towing a tandem dually gooseneck with my 2021 F350. 1100 km round trip. Got about 12 mpg one way with the deck empty and 6.9 mpg loaded coming back. (US gallons)

Hope you had a headwind and running 70 to get 6.9.

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