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Old 09-25-2016, 10:02 PM   #29
Vintage Kin
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Fort Worth , Texas
Join Date: Nov 2006
Posts: 7,671
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Forgot to add two things:

1) A test should be at the same travel speed. (I'd sure recommend the use of cruise control for back to back consistency).

2) I run at 58/9-mph. I currently sit on a 40% towing penalty (both my vehicles need some TLC to bring to best performance).

Granted, the half ton versus one ton and respective trailers might be said to be in different classes (I'm at near 65' combined and over 17000 in weight), but the thread topic covers both.

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 09-28-2016, 03:43 PM   #30
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2013 20' Flying Cloud
Roxboro , North Carolina
Join Date: May 2011
Posts: 28
I have seen pictures of an Airstrem being towed by a bicycle and I would think that is the best mileage. 😉

"It's supposed to be a challenge, that's why they call it a shortcut. If it was easy it would just be 'the way'." ~ Rubin, "Road Trip"

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Old 09-28-2016, 04:48 PM   #31
Rich and Kat
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2017 30' Classic
Virginia ... near ... , Washington, D.C.
Join Date: May 2016
Posts: 239
- TV: 2016 RAM 3500 Crew Cab 4x4 SRW w/ 6.7L Cummins Turbo Diesel
... not really broken-in yet (less than 5K miles) ...
- Trailer: 2017 Classic 30'
- Conditions: Flat-land highways, basically around 500' elevation (mean)
- Average Speed: 65mph (the embedded photo shows the dash with 56mph average speed ... this includes two separate 5-minute idles to let the turbo's cool down at rest stops and explains why the average speed doesn't indicate ~65mph)
- Averaged 15 mpg throughout this small journey through the flatlands ...
- Qualifiers: there was generally little to no traffic and we moved at speed throughout ... I realize this small snapshot is meaningless, but, it is indicative of what we saw on flat the highways between NJ and VA throughout our towing. Although we also drove considerable mileage without the TV connected (these statistics with photo ONLY include highway mileage with the trailer connected).

If I didn't want a big boat also, a 2500 would have been a much more comfortable ride than our 3500. The 3500 without a payload/towed-trailer is a ridiculously stiff and jarring ride ... but with the load, it really smooths out. I'd imagine the 2500, under load, would ride much like a 1500 empty. Sweet.

Also, I very, very much appreciated the "automatic" exhaust brake mode on our TV... I understand there are many who enjoy towing with gas engines, but for me, given my little experience as a "newbie," I certainly appreciate the extra braking the turbo diesel provides--even if only to maintain a given speed on a descent without significant engine RPM creep.

Good luck with your decision!
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2017 Classic 30', ProPride 3P Hitch, 2016 RAM 3500 Laramie Crew Cab 4x4 SRW w/ 6.7L Cummins Turbo Diesel and Retrax Pro MX Tonneau Cover
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Old 09-28-2016, 06:27 PM   #32
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2011 27 FB International
Algonquin Highlands , Ontario
Join Date: Feb 2016
Posts: 30
Did almost 10000 miles this summer, Ontario to West coast and back. Lots in the mountains, 2016 Duramax in front of a 27ft International.
The average mileage was 13mpg for the whole trip. I was really impressed and most days we towed at 55 to 70 mph.

WBCII #7863
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