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Old 05-14-2015, 10:14 AM   #29
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Fort Worth , Texas
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Late model Ram 2500 diesel fuel economy towing??

My truck with 8' bed topper is felt more at the steering wheel with a passing semi truck bow wave than is the somewhat heavier 35' TT. The body is moving against the suspension.
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1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 9-cpm solo, 15-cpm towing
Sold: Silver Streak Model 3411
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Old 05-14-2015, 03:01 PM   #30
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2014 27' FB Classic
Vicksburg , Mississippi
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I can give you some partial figures, as we have not yet towed with the new Ram. Mine is a 2015 3500 4x4 CC w/8' box and Highway Products Pickup Pack built in, Cummins TD and 6 speed manual tranny.

Solo - Around town/suburban - 18 mpg
Solo - Highway @ 62 - 21 mpg
Solo - Highway @ 78 - 17 mpg

We bought the truck in February, and it has only been driven around Mississippi/Louisiana so conditions have been warm and flat.

I'm hoping to get 14+ mpg with my AS on the trip up to Vermont next month, as that is what I got with the old Dodge 2001 2500/Cummins. We'll see...

Hope this helps!
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Old 05-14-2015, 04:15 PM   #31
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Thx. I knew they were doing well. Look forward to report.
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1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 9-cpm solo, 15-cpm towing
Sold: Silver Streak Model 3411
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Old 06-01-2015, 06:30 AM   #32
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1975 31' Sovereign
North Fort Myers , Florida
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Diesel Mileage

I have a 1999 5.9 cummins with 177K miles on it (original owner)with a Banks Stinger Plus system on it, 20-21 unladen, pulling my 1975 31'sovereign at 70-80mph(Florida) I get 13-14 and don't really know it's back there. That's the big advantage of the diesel is the torgue and flatout pulling power!

ps "If life gets to riveting, put your AS in the wind"
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Old 06-01-2015, 06:26 PM   #33
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2014 27' FB International
Longview , Texas
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2015 ram Laramie 4 wd 6 1/5 ft bed cummings.
Open highway running about 70-75 totally no load roughly 20-22 depending on hills and wind, around town 15-16, pulling airstream 27fb international with truck bed full of wife's necessities, including 300 lbs of 7000 honda generator, etc, and trailer full of wifes necessities as well, around 13-15 running in the range of 65, hit 75 average the 12-14
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Old 06-19-2015, 07:44 AM   #34
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Now that our engine is broken in, I'm seeing numbers like others have reported - 22 mpg solo on the highway; 15 mpg towing at 65 mph. We are thrilled with our truck!
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Old 06-19-2015, 09:16 AM   #35
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My 2013 Laramie 4x4 Megacab CTD is getting 13-14 towing my 2001 Safari 25 at 70 mph. I get around 18 not towing at 70 and 16-18 around town, depending on traffic and conditions. These numbers are calculated from odometer and fuel bought; the on board gauge reads about 1-1.5 mpg higher.

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Old 07-13-2016, 07:13 PM   #36
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1974 Argosy 26
1990 34' Excella
Charleston , South Carolina
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From Yellowstone
To Charleston
12.5 to 13.5 mpg
34 excella
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Old 07-13-2016, 07:39 PM   #37
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2014 28' International
Blacksburg , Virginia
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Mileage

Bummer, I am just out of the target survey group, I'm a 05 model,
with 35,870 miles .
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Old 07-14-2016, 08:58 PM   #38
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Vicksburg , Mississippi
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We've now done the Mississippi - Vermont 3400 mile round trip three times now on the 2015 Ram 3500 CTD (with 6 spd stick). GCVW has been 17,000 - 17,300 lbs on the CAT scales on each trip, and we've averaged 14.5 mpg each time. Tows like a dream - the Ram doesn't even seem to know the Airstream is back there. At 62 mph (which is what I always towed at for the first two trips, as we had 15" Goodyear Marathons with 65 mph rating), the Ram turned 1600 rpm in 6th gear. I could just set the cruise and the automatic engine brake, and the rig would effortlessly climb the hills on I-81 in SW Virginia and central Pennsylvania, and the engine brake held the steady speed going down the far side. Never needed to touch the accelerator or the brake pedal. I put 16" rims and Michelin XPS Ribs on for this last trip, and set the cruise at 65 (and passing speeds up to 70-72) - no problems at all! I would definitely recommend the Cummins CTD as the perfect tow vehicle; it comes wrapped in a Dodge Ram, which isn't bad, either!
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