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Old 06-20-2016, 08:03 AM   #1 (permalink)
mccr
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towing mpg

Curious what kind of mpg people are getting towing a trailer and what the trailer weighs?

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Old 06-20-2016, 10:33 AM   #2 (permalink)
rocken robin
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Towing 20 ft toy hauler 6k pounds @ 75mph from kingman az to barstow ca in light wind 8.1 mpg.

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Old 06-20-2016, 09:09 PM   #3 (permalink)
gbhrps
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Tow a 40' 5th wheel RV at 95 kmh/58 mph weighing in at 13 800 lbs. The info center states 11.3 mpg with the Banks 6 Gun Tuner set at stage 2/towing.

I have never done the mileage math by hand ... simply because it is what it is when you tow something this size.
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Old 06-20-2016, 09:37 PM   #4 (permalink)
turnpike
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Running an LLY, towing the pictured 5er at about 13,000 lbs. I would not state a flat MPG because there are so many variables to consider.

Generally...... on the flat long haul over 500 miles per day, with no wind and reasonable speed (60 - 65 MPH), I may get 11.5 to 12 miles per US gallon. BUT, I have been down to 6 MPG in a hard pull against a corner wind (worse than head on wind), and as high as 16 MPG with a tail wind. Winter fuel burns 10% more fuel. And the road runs up hill against the wind both ways, eh know.

If you want to go, you pay to play. Newer trucks maybe better, but not enough to pay the mortgage on the new truck unless you run it over 40 hours a week.
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Old 06-21-2016, 12:12 AM   #5 (permalink)
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12-13 towing 11k lbs on flat ground at 60mph.
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Old 06-21-2016, 07:38 AM   #6 (permalink)
Tom S.
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If you want accurate data, you really need to specify type of trailer, it's weight and terrain towed in by percent, flat vs hilly vs mountains. You also need to specify truck, especially single rear wheel vs dually and crew cab vs extended. Year of truck and 4wd vs 2WD will also cause variations. As the question is currently stated, the responses won't be very meaningful.

Also moved to towing where it belongs.
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Old 06-21-2016, 10:37 AM   #7 (permalink)
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Quote:
Originally Posted by Tom S. View Post
If you want accurate data, you really need to specify type of trailer, it's weight and terrain towed in by percent, flat vs hilly vs mountains. You also need to specify truck, especially single rear wheel vs dually and crew cab vs extended. Year of truck and 4wd vs 2WD will also cause variations. As the question is currently stated, the responses won't be very meaningful.

Also moved to towing where it belongs.
Yep, all of the towing I do is boats. I have three different boats that I have towed 1200 miles one way and the LIGHTEST of the 3 gives me the least mileage.
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Old 06-21-2016, 11:47 AM   #8 (permalink)
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Sorry for posting in the wrong place. Truck is in my sig, 2005 3500 dually 4x4 crew cab 6.6 auto. The trailer is a 16000 lb [weighs 4200 lbs empty]tilt deck 5th wheel and will be hauling varying loads. The roads around here are hilly , I would say 40 to 50 % flat. I wonder why the lightest of the boats gives the least mpg, maybe driving harder or faster with the lighter load?
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Old 06-21-2016, 12:03 PM   #9 (permalink)
Tom S.
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Quote:
Originally Posted by mccr View Post
Sorry for posting in the wrong place. Truck is in my sig, 2005 3500 dually 4x4 crew cab 6.6 auto. The trailer is a 16000 lb [weighs 4200 lbs empty]tilt deck 5th wheel and will be hauling varying loads. The roads around here are hilly , I would say 40 to 50 % flat. I wonder why the lightest of the boats gives the least mpg, maybe driving harder or faster with the lighter load?
Based on my 06 SRW crew cab 4x4, towing about 3k less, my guess would be yours will average between 8.5 and 9.5 mpg. This will vary with weather conditions and driving techniques. Tire inflation is a mixed issue. For maximum mileage, you want the tires at their maximum pressure for minimum rolling resistance, but doing this will also cause the tires to center wear prematurely. With this weight, you might want to consider adding air bags to level the rear of the truck.
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Old 06-21-2016, 12:03 PM   #10 (permalink)
mp06011999
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My LBZ towing my buddies 21 foot Searay ski boat (guessing 8000 lbs.) with the AC on full blast during 100 degree temps, hilly curvy roads to the lake doing 50 to 60 mpg gets about 12 to 13mpg.

In comparison I average 18 hwy, 16 city empty.

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