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Old 11-27-2018, 02:55 PM   #1
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Gas mileage with 5th wheel

I know your mileage may vary depending on multiple factors. I currently have 2016 Chevy 2500 HD diesel. I pull a toy hauler that is probably around 8000 loaded. I am upgrading to a 39 foot 5th wheel that will probably total 17000 pounds. It is a dual axle RV. The truck is rated to carry 18100 pounds.

I used to get 10-12 mpg pulling old toy hauler. Can I get any feedback about mileage people have seen that I should expect with new RV?

Appreciate any input.
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Old 11-27-2018, 03:10 PM   #2
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My Teton weighed in just shy of 21k. Three axles. Also flat front, no rounded. More drag but more closet space. I got 5-6 depending on road and wind. That was with a 2012 Chevy dually diesel
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Old 11-27-2018, 04:28 PM   #3
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We have a Montana H C about 14 loaded and a Ram 3500 sb Dually, diesel. This last trip got 11.2 and that is pretty normal. That included flat land and mountains.
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Old 11-27-2018, 07:18 PM   #4
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Towing our Reflection with 10k GVWR got 10-12.5. Solitude at 15k and close to a foot taller 8.5-10.5.
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Old 11-27-2018, 07:57 PM   #5
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I'm towing a Solitude 305RE at around 17,000 lbs., towing with a 2008 Dodge 3500 Cummins. We get around 10 to 13, actual, not the guess-o-meter. We don't run much over 65 mph.
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Old 11-27-2018, 09:25 PM   #6
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Might want to hold off on getting that 17K 5th wheel.

Your 2016 2500 has a RAWR 6200#
With a 14K 5th wheel you will be at MAX RAWR....wet pin will be close to 3000#

17K will have a WET Pin closer to 3500#



I have a 2007 3500 with 6200# RAWR...my 14K (13,873# scaled weight) puts my rear axle right at 6200#



Just saying............


Mileage.....get 10.5/11.5 mpg towing my 14K 13'4" tall 34' long 5vr
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Old 11-28-2018, 08:48 AM   #7
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16k 5th wheel with diesel ram 3500. when i plan a trip i use 8 mpg as an average. but of course this is an overall average as mileage varies going uphill, downhill, and level.
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Old 11-28-2018, 09:03 AM   #8
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MPG

We have a 2017 3500 RAM dually with the 4:10 rear end. Before our camper was around 11k loaded. We upgraded to a Road Warrior toyhauler which is around 19,300 loaded.
Mpg with the old camper was 16 to 17 mpg. But with Road Warrior it is around 9.0 in the mountains or 10.5 along the coast in the gulf area.

With our truck geared to pull I feel I need to watch the weight. It is not only pulling going into the mountains but coming back down the mountains too.
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Old 11-28-2018, 03:26 PM   #9
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Quote:
Originally Posted by FTer&nj View Post
I know your mileage may vary depending on multiple factors. I currently have 2016 Chevy 2500 HD diesel. I pull a toy hauler that is probably around 8000 loaded. I am upgrading to a 39 foot 5th wheel that will probably total 17000 pounds. It is a dual axle RV. The truck is rated to carry 18100 pounds.

I used to get 10-12 mpg pulling old toy hauler. Can I get any feedback about mileage people have seen that I should expect with new RV?

Appreciate any input.
We had a 20002 Duramax dually towing a 15,500# 5er, reliably got between 8.5-11 mpg over an 8 yr period.
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Old 12-04-2018, 06:28 PM   #10
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2017 3500HD pulling 16K. Depending on the road I get 8 to 12 mpg. I tend to keep it about 65.
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Old 12-08-2018, 12:33 PM   #11
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We pulled a 36' 5th wheel weighing about 13,000 lbs with a Ford F250 PSD. We averaged about 8 MPG.
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Old 12-09-2018, 11:02 AM   #12
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I have found after pulling two different 5er's with the same truck in my signature. That the weight of the fiver does not really matter that much. It is the height of the 5er that acts like a wind brake on your fuel mileage. Both of my 5er's weight was pretty close but the height on the new unit is taller. I went form 12' to 13'-6" and this did make a difference. I lost between 1 and 2 MPG between the old and new trailer.
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Old 12-09-2018, 11:29 AM   #13
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At 65, getting 14.4 with a combined weight of 17,500, with 3:42 gears.....4 coast to coast trips, so a few mountains thrown in....worst was heading west thru Wyoming...10!....( the place the wind never stops)
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Old 12-09-2018, 04:34 PM   #14
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When we had our last tt we had a 2011 3500 Ram and averaged 9 to 10.5 MPG. Traded to a 5er in signature and gained about 1 MPG. Gained at least another 1 to 2 MPG when we got the 2015 Ram. These are averaged over the season. I keep accurate records using the Fuelly App. Maybe wind and terrain have to do with mileage more than anything.
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