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Old 02-25-2012, 06:34 AM   #1
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Question Mileage while towing 5th toyhauler?

We wondered if any of you could tell us what kind of mileage you're getting with a one ton pickup truck dually pulling a 38' or 40' fifth wheel toyhauler?

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Old 02-25-2012, 07:15 AM   #2
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I have a 2007 Dodge srwcclb 6.7 and get 10 mpg pulling my 40' raptor loaded

Fred Kenna and Tag the Whippet
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Old 02-25-2012, 07:26 AM   #3
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We have a one ton duelly GMC diesel with an allison trans and pull a 39ft 5er. Loaded our 5er scales in at about15000 lbs. We average 10 MPG in normal driving condutions.
Thane & Sharon
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Old 02-25-2012, 07:36 AM   #4
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When I had a 5 wheel a 3 axle 39.5 ft toy hauler I went across the scales and was 26,600 lbs loaded it was 10 to 12 mpg,with a 2003 dodge one ton 5.9 cummins.
2008 Tiffin Phaeton
360 Cummins
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Old 02-25-2012, 11:49 AM   #5
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I've got a 2007 F-350 6.0 diesel/dually with the Banks intake and 5" exhaust. Pulling my 40', 14,700 lb 5th on the flats with no head wind I get 11-12 mpg. On hills and/or with a head wind I get 9 - 10 mpg. That is at 62 mph. average. For every 5 mph over 62 I get 1.5 mpg less empty or loaded. I have the 410 gears with a 5 speed trans so if you get 373 gears with a 6 speed trans you may do better.
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Old 02-26-2012, 09:41 AM   #6
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When we towed our 38 foot toy hauler 5ver with my 2005 Chevy Duramax 2500 HD single rear wheel with an Edge chip, if I behaved we could get up to 11, maybe 12. Most times we got around 10 unless in the hills then it would drop just below 9.
2009 Jayco Seneca HD 36MS
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Old 02-26-2012, 03:00 PM   #7
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41-foot Cyclone, loaded, no water, 60 mph, '08 F-450 CC 4X4 w/ 4.88 gears, auto, BlackMaxx Tune, no rabbit starts: 7.7 to 8.1 mpg. Handles like a dream...anywhere, anytime. IF I were going to complain about the mileage, guess I should sell it! I make up any difference in $$ spent versus others is simple: Stay @ WalMart one night out of many. State Parks are half price at my age and awesome. Mileage with these toys is relative.
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Old 04-21-2012, 12:24 PM   #8
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2006 duramax dually pulling a 41' voltage 3795 9.1 mpg so far.
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Old 04-22-2012, 07:47 AM   #9
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2006 Duramax SRW, 35' KZ, 10 m.p.g. pulling a house with attached garage, 18-20 when hauling groceries.
2007 K-Z 35 Toyhauler, 2006 Chev 2500HD Duramax, 2005 H-D Road King Classic, 2007 Mini-Schnauzer "Scooter"
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Old 04-23-2012, 08:00 AM   #10
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Smile Dually

I have Heartland 43' Road Warrior, going 65 on flat roads combined with southern hills I can get 8-9. Pulling with 2011 Dodge 3500 dually.
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Old 04-24-2012, 03:27 PM   #11
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I get just over 10 at 60 MPH, and almost 11 towing at 55 (Kalifornia).
04.5 Dodge 3500 pulling a 42.5' Voltage 3905 though Western states.
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Old 04-30-2012, 02:36 PM   #12
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Pulling the led sled, at 27.5k, Yesterday, I was making just at 10.6, cruising 60-62 mph. Now, I do have an Edge tuner, straight exhaust, and airbox to help it out.

All things considered, i wasn't unhappy with that at all.
'12 F-450 Lariat
05 KZ 45' Escalade Toy Hauler
00 Harley Road King, 94 Dyna Wide Glide, 83 FXR
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Old 05-01-2012, 12:17 PM   #13
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Your speed will affect the mpg. for every 3 mph faster I pull I loose .5 mpg. I find keeping the rpm's under 2100 gives me good millage.
Bill & Linda. If it doesn't move and should, WD-40 it. If it moves and shouldn't, duct tape it. F-350 dually, 40' Sunnybrook Titan toy hauler and custom Harley
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Old 05-02-2012, 03:51 AM   #14
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I'll go along with four leaf. 2011 Dodge Phatboy pulling a 38 ft 9 to 10

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