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Old 12-06-2014, 03:04 PM   #1
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Diesel trucks

We are in the process of planning to be full time next year and plan on buying a fifth wheel and a truck. Can you please inform me what type of mileage you get on a ford, dodge or chevy diesel 350/3500 dually without towing since the truck will be our main transportation for sightseeing etc. and mileage while towing.
Any feed back would be greatly appreciated.
Thank you,
John and Linda

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Old 12-06-2014, 03:57 PM   #2
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I have a 2014 Chevy 3500HD Dually and have never figured towing and not towing mpg. The new dash information center only gives me the average mpg for the total miles driven. Last time I checked, I was getting 11.4 and that is with 14,000 miles on the truck. I would round that to about 75% towing and 25% unloaded. I don't use the truck other than pulling the trailer and sightseeing while on the road.
On my previous 2004 Chevy it would tell me the instant mpg, sure wish the 2014 would do the same. I don't worry about it too much, just figure I need the truck to pull the trailer. No getting around the mileage.
Hope that helps you a little bit.

Keith & Drena with Casey & P-nut (dogs) & Gabby (cat)
2014 Silverado 3500HD Dually 4X4
2014 Evergreen Bay Hill 365rl
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Old 12-06-2014, 04:08 PM   #3
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2011 Duramax pullling 17K+, 10 to 11 towing keeping the speed between 60 & 62, up the speed the mileage goes down. Solo can run 17 to 20 running 60 to 65. Stop-n-Go around town 14 to 16.
2011 Chevy Silverado 3500HD LT Ext Cab 4x4 Duramax/Allison, 2016 Redwood 39MB, Disc Brakes, Mor/ryde IS, GY 17.5" H tires, 5.5K Onan, Dual ACs, auto level, auto sat dish, stacked washer/dryer, residential fridge, King sleep number. Michelle & Ann
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Old 12-06-2014, 05:13 PM   #4
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The mileage on all there is very similar on the 13 and newer trucks.

Test drive all three, price them apples to apples, talk to full timers and see what they say.

My opinion is a RAM Dually with the true Medium Duty Cummins and the medium duty Aisin transmission. Their towing claims are backed by SAE J2807.

I just ordered a RAM LongHorn Dually rear air ride loaded.
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Old 12-06-2014, 06:44 PM   #5
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2011 Chevy dually, 26K gross combined, get around 8-10 towing depending on the wind at 62 mph and 15-16 driving around not towing.
2016 Silver Ram 3500 CC Dually, 2011 HitchHiker DA 349 RSB, 2018 Wrangler unlimited Rubicon
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Old 12-06-2014, 11:25 PM   #6
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Originally Posted by Vette Racer View Post
2011 Chevy dually, 26K gross combined, get around 8-10 towing depending on the wind at 62 mph and 15-16 driving around not towing.
Honest mileage!
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Old 12-07-2014, 05:01 AM   #7
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2013 Chevy 3500 Dually - duramax. Towing runs between 10 - 12 at 65 to 68 mph. With truck & 5th wheel at 22,000 lbs. highway driving at 70 mph about 17.5 mpg.
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Old 12-07-2014, 05:57 AM   #8
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Ford 6.7 at ~8750# full of fuel and two people, the dog and the usual travel bric a brac (8360 CAT scaled with no one on board and full of fuel) pulling ~12,500 5er will do 13.4-13.8 mpg at highway speeds. Open road, again at highway speeds will always pull down 19.5 to as high as 21+ mpg depending on whether I'm doing the feather foot or heavy foot driving. Around town - 14.5 - 16.5 is normal, especially when you factor in winter fuel blends too.

Fuel mileage is as much driving habits as it is the engine's efficiency. If you want to drive at over 80 mph (Texas, Montana, etc) it will suffer. Heavy acceleration starts, multiple stop and go runs will run the mpg down very quickly.

If we are traveling and sightseeing, fuel mileage doesn't enter the equation. Between my truck and trailer I have well over $100K invested in my leisure time activities. Then add in the cost of getting there, a place to park, added costs for local foods and amusements - fuel mileage - it is what it is and if you have to worry about that factor beyond finding a station to fill up while enjoying those days, you're in the wrong pastime
Dave W along with my DW, Susan and our poodlepups, Callie & Molly,2011 Ford F250 6.7 CCLB, 5er Hitch Option w/B&W Hitch,,Ride Rite air bags, 2014 Montana High Country 343RL (38')w/disc brakes
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Old 12-07-2014, 06:22 AM   #9
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We did a 4800 mile trip this fall and got 11.3 overall, most of it towing. We were with some friends who tow their Acadia behind their motorhome and we were usually in it for sightseeing. Haven't made any long trips solo but on some about a hundred miles or so got around 19 highway. Prior to getting our new truck we had a 2 wheel drive, single rear wheel 2012 GMC 3500 Duramax which did a few tenths better towing and would get up to 21 mpg solo. A heavier truck with 4 wheel drive has an impact. I think mileage is going to be fairly close to the same no matter what you get.

I agree with the thought that we have a bunch of money tied up and what does it matter. Just part of the equation when traveling. Our fuel bill will rival our campground fees on some trips. The past 2 years we have taken trips of 4500 miles or better with lots of stops. The fuel bill can be a little high especially in some states with higher fuel taxes. We may have one more of those in our future but we have found just picking someplace closer we like and staying is just as fun and much less stressful than the constant packing up and moving. Our favorite is the Rocky Mountain NP area in Colorado. It's about 800 miles from us and next year we plan to stay in one place at least 6 weeks. This has nothing to do with mpg but the fuel bill is much less and we still have fun doing what we love to do.
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Old 12-07-2014, 08:52 AM   #10
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F-450; 6.7l diesel; only comes with 4x4. about 15 solo and 10 towing a 17K 5er.
John, Joyce & Zoie the Terrier. - Fulltime since 2008

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Old 12-07-2014, 10:17 AM   #11
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The 2005 F-350 4X4 6.0L diesel CC Long bed I drive delivering towables gets
11MPG towing heavy, Solo it jumps to 17MPG at 65MPH with the Cruise.
(RVM#26) THE U-RV 94 F-700/24 foot U-haul box home built RV
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Old 12-07-2014, 05:05 PM   #12
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2008 Ford Heavy Duty, double cab, 6.4 diesel.

Just went from Tucson to Sedona and back. Spent 6 days cruising around the area. My trailer weights out about 9,000 to 9,400 and I run 62 with the cruise. Between Phoenix and Sedona on I17 pretty good climbs. Computer said I averaged 12.4 the entire trip.
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Old 12-07-2014, 05:38 PM   #13
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For my 2013 Chevy 3500 crew cab dually:

18.5 mpg not towing anything
12.5 mpg towing my 24' 6,000 pound boat
9.5 mpg towing my 41' 16,650 pound toy hauler
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Old 12-07-2014, 06:20 PM   #14
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My 2002 Chevy Silverado dually, CC, LB, 4WD, Duramax gets 15/16 in local driving including town. Highway mileage-empty is 18.5, towing the 15,500#GVW, 40' 5er it averages 10.5.

2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
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