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What is your "typical" fuel efficiency or MPG


yourpcgeek49

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In drawing up a budget one of the major components is the cost of fuel. I am planning to purchase a 350/3500 class dually to pull our 5th wheel (max trailer weight 16,000#). I know that there are lots of variables, but am looking for what others have experienced both when pulling and not.

Judith & Mark - Class of 2015

2011 Chevy Silverado 3500 dually 6.7 L Diesel

2011 Heartland Bighorn 3670 (38')

 

Blog: http://www.yourpcgeek.com/blog

 

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Just a bit heavier, 62 to 63 mph, we generally get 9.5 to 10 mpg. Last run from Atlanta to Knoxville, we got 10.5 mpg.

 

Ken

Amateur radio operator, 2023 Cougar 22MLS, 2022 F150 Lariat 4x4 Off Road, Sport trim <br />Travel with 1 miniature schnauzer, 1 standard schnauzer and one African Gray parrot

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To add more info, we have dropped to 7.8 mpg one time bucking a pretty strong head wind (20 mph gusting to 40 mph). I could not slow down much as it dropped the engine off the torque peak and it wanted to downshift constantly.

 

Ken

Amateur radio operator, 2023 Cougar 22MLS, 2022 F150 Lariat 4x4 Off Road, Sport trim <br />Travel with 1 miniature schnauzer, 1 standard schnauzer and one African Gray parrot

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In our fiver which was lighter with a dually we averaged 11mpg over the course of each year. We rarely drove over 62.

Ron & Linda

Class of 2007
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"Do what you can, with what you have, where you are" Theodore Roosevelt

"We can't control the wind, but we can adjust our sail"

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With my 2007.5 Duramax DRW pulling a 16000 lb 5er, I averaged about 9.5 mpg overall (sometimes better and sometimes worse dependant on terrain and wind). I am getting about the same to slightly better (9.5 to 10 mpg) with my 2000 T2000 with Cummins N14 and autoshift pulling the same trailer.

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We usually get 16-18 solo and 9-11 towing 14,000 pound 5th wheel. Our typical cruising speed is 55-60. The worst mileage we ever saw was 7 mpg while driving into a 40 mph headwind for an entire day.

 

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In drawing up a budget one of the major components is the cost of fuel. I am planning to purchase a 350/3500 class dually to pull our 5th wheel (max trailer weight 16,000#). I know that there are lots of variables, but am looking for what others have experienced both when pulling and not.

If you base your budget on 10 MPG for all miles driven you will be pretty close, and maybe enough left at the end for dinner, if you're lucky.

Tom

2016 Ram CC dually, 2011 HitchHiker DA 349 RSB, 2014 Jeep Unlimited Rubicon

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14400 with 98 chevy dually diesel. average 12.6 over 3000 miles.

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imadtchmn (I'm a Dutchman)
1998 Chevy Silverado Dually 6.5L TB Diesel w/plenty of power mods
2004 Dutchmen Classic 33LRK 3 slides
Class of 2016 Come visit our Class

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Thanks to all who responded. I had been figuring around 10 mpg, but wanted some confirmation that my assumptions were correct. When discussing the budget with the DW, you don't want the wrong version of assume to show up! LOL!

Judith & Mark - Class of 2015

2011 Chevy Silverado 3500 dually 6.7 L Diesel

2011 Heartland Bighorn 3670 (38')

 

Blog: http://www.yourpcgeek.com/blog

 

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07 f350 6.0, approx. 11mpg flat, no wind towing 14,000 lb 5er, 17-18 solo. 05 FL M2 Cat C-7 8-9 overall. Both myself and DW much happier with the security of the M2 even with the mileage penalty. Would never go back to LTD with this trailer.

 

Rich

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I plan on about 9mpg. I've gotten a little better than that but I don't think I've ever gotten any worse. It's hard to predict things like tail winds or what traffic might be doing. Terrain, maybe somewhat predictable (mountains vs plains). It helps having about 130 gallons of fuel capacity onboard.

 

ETA: 2001 F350 CC dually, ~13.5k fiver.

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2015 6.7 diesel dually - new truck. . .just hit the 1000 mile break in mark and then loaded the camper and headed south. Now have about 1500 miles with the camper loaded and it looks like it will get about 11.6 mpg at 62 mph average. Speed of course, is the biggest factor since we're pushing a barn door side-ways down the highway.

Also noted a driver dragging a 5ver reported on the ford-trucks forum about the same with his identical truck: 11.6 mpg diesel with varying road conditions over a long haul.

Casual cruising without the camper at 55mph it will get about 20+ mpg.

Bye the way. . .it has massive power! Quiet too. It's light years ahead of the older trucks.

 

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~Rich

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