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07-16-2018, 05:49 PM
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#1
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Member
Join Date: Aug 2016
Location: Summerfield, NC
Posts: 38
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Fuel mileage.
Question for you RAM owners. Looking at a RAM 3500, 4X4, automatic, SRW, Cummins, with 3.74 gears. What kind of fuel mileage can I expect unloaded. It will be our daily driver is the reason I'm asking.
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07-16-2018, 06:16 PM
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#2
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Senior Member
Join Date: Oct 2017
Location: Germantown, Tennessee
Posts: 716
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Roadking, I can only speak for the Ford diesel, but it will help you in that the big three are VERY close in mileage figures. If you should run across a few owners telling you that their everyday figures reach 24, uh, well, you can probably spot BS a mile away. We tow the Suites at 62 and get about 9.5 to 11. If we get hilly then it may stay at 9.0 When we are unhooked for a long period we will generally get about 18.5 or so. We just returned form a five day in the UP, normally travelling about 55 or so and got 20.5 for two days straight.
These are real figures, and I think you'll find that all three of the big guys will treat you well.
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Jim and DW 50 years Brenda
2018 40rssa and 2021 Jayco Eagle 40'
2019 F450, ruby red
Harley Road King & sidecar
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07-17-2018, 12:23 AM
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#3
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Member
Join Date: Jul 2016
Location: S. Cali.-MT
Posts: 80
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GM here, we typically see about 15-17 MPG combined city-hwy.
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J&J
DRV Suites ES-38RSSA #9679
GM Denali 3500HD-Max 4x, CC, 8' DRW
EZGo-txt, Yamaha-G22E
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07-17-2018, 07:49 AM
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#4
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Junior Member
Join Date: Apr 2018
Posts: 2
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Drove a 2011 Ford F-350 dulley diesel with 3.73 rear..got about 16mpg around town, 10-12 pulling a drv MSA38. Now driving a 2017 f-450 diesel with 4.30 rear—~14-15mpg around town—-9-10 with the drv...depends a lot on where you drive...going up and down the hills on 77 in wva and va in the low end...once you get on the flat roads like eastern North Carolina mpg gets better. Not a dodge but should be close...f450 has a 48gallon tank
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07-19-2018, 08:53 AM
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#5
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Site Team
Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
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Generally, after reading many posts about brands/models--it SEEMS to me that Rams get a little better mpg solo and towing than Ford/GM. But there are so many variables involved that a definitive answer is almost impossible to ascertain.
If you are really concerned about mpg in a daily driver, then the lower numerical ratio gears usually do better.
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2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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07-19-2018, 08:36 PM
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#6
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Junior Member
Join Date: Jan 2018
Location: Southeast Louisiana
Posts: 22
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I’ve got a 2018 RAM 3500 DRW and I am getting around 17 mpg when not towing and I drive it as my primary vehicle.
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Meet the Robinsons
Columbus 377MBC
2018 RAM 3500 Laramie
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07-23-2018, 10:20 AM
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#7
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Member
Join Date: Aug 2016
Location: Summerfield, NC
Posts: 38
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Thanks for all the responses. Let me add another question. I'm finding plenty of 3500 that will more than pull the coach we have on order but most have a 4.10 rear gear. How much difference do you think there will be mileage wise between a 4.10 and a 3.73? The 3.73 will do what I need it to do and then some.
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07-23-2018, 11:16 AM
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#8
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Senior Member
Join Date: Oct 2017
Location: Germantown, Tennessee
Posts: 716
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Roadking, the vast majority of your fuel mileage comes from wind resistance and rolling resistance, not rear gearing. I would guess you would see less than 1/2 MPG at the most.
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Jim and DW 50 years Brenda
2018 40rssa and 2021 Jayco Eagle 40'
2019 F450, ruby red
Harley Road King & sidecar
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07-23-2018, 03:18 PM
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#9
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Junior Member
Join Date: Nov 2015
Posts: 2
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2014 Ram same set up you asked about
I get 18-20 mpg empty on flat roads with
cruise set on 70mph
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07-23-2018, 03:20 PM
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#10
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Senior Member
Join Date: Jun 2006
Location: Boydton, VA
Posts: 443
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My '05 5.9 3500 gets 18-20. Closing in on 300k miles.
Regards
Gemstone
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No longer on the road.
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07-23-2018, 04:46 PM
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#11
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Member
Join Date: Jan 2016
Location: Maine
Posts: 55
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2013 RAM, but DRW. 18-20 depending on the roads. Across PA got 19.2. Towing, 11.2 average. Set up the same, but as a DRW.
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Elliott, Vicky, and Sadie, our GSD
2014 Redwood36RE Titan Disc brakes, 17.5 " Sailun Tires
2013 RAM dually, CTD, Aisin Tranny, CC, LB 4x4
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07-23-2018, 07:21 PM
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#12
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Member
Join Date: Jun 2018
Posts: 99
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No one mentioned if the truck is new enough to use DEF and the temperature is cold. Expect the mileage to drop a couple MPG. Warm weather improves mileage
Had a Ford 6.7 and now a 8.9 Cummins
Clay
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07-23-2018, 08:19 PM
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#13
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Member
Join Date: Jan 2016
Location: Maine
Posts: 55
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My RAM is a 2013, and requires DEF, and I got the mileage stated in my above message.
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Elliott, Vicky, and Sadie, our GSD
2014 Redwood36RE Titan Disc brakes, 17.5 " Sailun Tires
2013 RAM dually, CTD, Aisin Tranny, CC, LB 4x4
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07-26-2018, 10:33 AM
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#14
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Junior Member
Join Date: Mar 2018
Location: Michigan's U.P.
Posts: 15
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21.5 interstate speed and 12 towing at 65mph. I have a 3.42 rear gear and do not use DEF.
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'14 Ram 3500 SRW w/6.7 Cummins
'14 Montana HC 305RL
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