Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Trailer Towing and Tow Vehicles Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 12-27-2015, 08:41 AM   #1
Senior Member
oldeguy's Avatar
Damon Owners Club
Join Date: Jan 2015
Location: Southern Lorain County, OH
Posts: 217
How fast do you tow your 5th wheel?

gas or diesel fuel? and MPG?

5.9l Cummins 03 RAM 3500 DRW (IM FRED), Haul'en a 07 Jayco Designer 34RLQS (OH ETHEL)...3 yrs snowbirding in FL, with my sweetie...and man's best friend, our stubby-tailed (no tail at all) Australian cattle & Boxer mix rescue dog!
oldeguy is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 12-27-2015, 08:53 AM   #2
Senior Member
Join Date: Apr 2014
Posts: 333
62 mph is typically considered to be optimum for fuel mileage, etc. I like 65 as it seems to be a sweet spot while towing my heavy 5ver. I avg 10 mpg towing my 19000lb 5ver. You will feel what is comfortable to you and your setup. Wind resistance increases dramatically with speed thereby reducing fuel mileage.

rskeans is offline   Reply With Quote
Old 12-27-2015, 09:00 AM   #3
Senior Member
BFlinn181's Avatar

Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 17,878
I cringe when I see questions like this. Some will reply, "75 mph" or some other outlandish claim of speed. "Never had an accident or a ticket" is often added to such claims. It only takes one accident to be life changing.

What are your tires rated for? How valuable are the lives and property you're hauling? What's your hurry? How stable is your tow vehicle when loaded? How does it handle? How's your driving? What's your blood pressure after an hour at 75 mph as compared to an hour at 62 mph? How much more fuel did your truck use to gain the 12 extra miles covered in an hour?

Those are some of the questions only YOU can answer.

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is online now   Reply With Quote
Old 12-27-2015, 09:03 AM   #4
Senior Member
Join Date: Apr 2015
Posts: 1,168
I am the guy that you will likely pass as I set the cruise control at 63. No matter how good of a driver you think you are, you can't control the stupidity of others.
2014 Raptor 300MP, 2014 Cowboy Cadillac - Ram 3500 Crew Cab Long Bed Longhorn 6.7 Cummins Turbo Diesel DRW 4.10 Rear End, 5588 Payload, Firestone Airbags, Curt Q20, TST507
raineman is offline   Reply With Quote
Old 12-27-2015, 09:30 AM   #5
Senior Member
Join Date: Oct 2015
Posts: 314
No 5'er, but I tow at 60-65.

Our speed limits are 80 on the interstates, 65 for trucks. 70/60 on other highways.
drittal is offline   Reply With Quote
Old 12-27-2015, 09:36 AM   #6
Senior Member
Join Date: Nov 2015
Posts: 637
Since I pull my 5er primarily in CA, I tend to keep it about 55. When I escape CA, I keep it at 65 max. I average about 9 pulling, 12 empty around town and 15 highway. Pulling, I prefer to be the slow guy everyone is passing. Getting it rolling is not a problem. Getting it stopped safely is another matter.
2012 Dodge C3500 DRW 4x4 Long Box, WeatherGuard 90 Gal transfer tank, B&W Companion Hitch
2012 Keystone Montana 3100RL, 520W Solar, 460AH batteries, Morningstar MPPT 45 CC, Bogart 2030RV monitor.
drdarrin is offline   Reply With Quote
Old 12-27-2015, 09:54 AM   #7
Moderator Emeritus
SmokeyWren's Avatar

Join Date: Jun 2011
Location: Midland County, Texas
Posts: 3,580
Our "ticket limit" is 79 MPH here, and 84 MPH a few miles west of here. A properly-set-up 5er with an excellent driver and tow vehicle can tow at those speeds with no more danger than an idiot towing at 55 MPH.

On the 5er, I run expensive Michelin XPS truck tires, rated for trailer service at way over 84 MPH. So trailer tires are not my speed limiter. My diesel F-250 had enough tower and torque to tow my 8,000-pound 5er at any speed. But I'm a cheap-skate, and MPG falls way down at any speed over 62 MPH. So I almost always towed at 62 MPH when towing the 5er across the country.

Then I graduated to a new tow vehicle and a lot lighter TT. My EcoBoost drivetrain can tow at any speed, but again MPG falls off at higher speeds. So I usually tow at about 65 MPH, which is my trailer tire speed limit. In west Texas with 80 MPH speed limits, I rarely pass anyone, and every 18-wheeler from California blows by me at 75-to-80 MPH, sucking wind. I have the expensive ProPride hitch on my TT, so those big trucks blowing by me don't bother me any.
Grumpy ole man with over 50 years towing experience. Now my heaviest trailer is a 7,000-pound enclosed cargo trailer, RV is a 5,600 pound Skyline Nomad Joey 196S, and my tow vehicle is a 2012 F-150 3.5L EcoBoost SuperCrew.
SmokeyWren is offline   Reply With Quote
Old 12-27-2015, 09:59 AM   #8
Senior Member
halfwright's Avatar
Join Date: Nov 2011
Posts: 601
I tow between 58 to 62. That puts the 7.3 liter diesel at 1900 to 1950 RPM. I average 12 to 14 MPG. I will run it up to 70 downhill to get a good run at the next hill. It is a dragonfly setup. drag it up hill and fly down.
Jim and Darlene Wright
plus Ryder,Poodle and
garbage disposal cross
halfwright is offline   Reply With Quote
Old 12-27-2015, 10:59 AM   #9
Senior Member
Join Date: Dec 2012
Posts: 2,722
I run around 62-64 on the interstate. On the hwy I have to go with the flow.
62 seems to be the best since in Oregon semi's are limited to 55 mph. They tend to run closer to 60 though. If I tow to fast then I'm constantly fighting up coming semis and auto traffic that's passing me. Towing 62 takes longer to catch semis so less time having to deal with cars passing me and me passing semis. Out on the wide open desert in Oregon I'd run 70 if my tires would allow it. When traffic is thin on the interstate I run right up to 65 mph. The tow speed limit in Oregon is stated as 55 mph, but I've been passed by St troopers towing at 64-65 mph and they never gave me a glance. Better things to worry about I guess.
Cumminsfan is online now   Reply With Quote
Old 12-27-2015, 03:51 PM   #10
Senior Member
C130's Avatar
Join Date: Mar 2013
Location: Magnolia, TX
Posts: 227
How fast do you tow your 5th wheel?

65-75, tow with a 2015 F450. It's not any less safe towing at 70-75 than 65 if road conditions and traffic are suitable. For me it all depends on traffic and road conditions. I have a Hensley TS3 coupled to a TrailAir Rota-Flex pin box and it's about as smooth as it can get I think. I ran Michelin XPS RIBS on my Fuzion toy hauler but haven't switched out the OEM tires on our Momentum 385TH yet. In my opinion if you have the right tow vehicle driving the speed limit isn't an issue and yes I prefer to get where I'm going as soon as I can. Two kids, wife, work, only a limited amount of time.
2015 F450
2015 Momentum 385TH
2011 Fuzion 322 Touring Edition III (sold)
C130 is offline   Reply With Quote
Old 12-27-2015, 06:42 PM   #11
Senior Member
rollondown's Avatar
Join Date: Jan 2012
Posts: 644
We generally run with traffic whatever speed that is. On open highway I try to pace myself between packs of cars.
In our case since we pull with a big truck HDT, controlling the 5'er, driver fatigue and fuel mileage really isn't a problem so we roll until we want to stop.
Fuel mile is 10.5 or so doesn't matter the speed-55 or 75.
Alie & Jim 2017 DRV Memphis
Volvo Dually Pickup
My keyboard is faster than yours
rollondown is offline   Reply With Quote
Old 12-27-2015, 08:01 PM   #12
Junior Member
Join Date: Apr 2013
Location: Bellevue, Wa
Posts: 10
I have a dually diesel that I tow a 39' 14,000 lb FW. I usually drive between 58 and 65 miles an hour. I get between 10.5 and 12mpg. At these speeds I seem to be left alone. People behind just pass me and the folks ahead of me get farther ahead. I also don't have to worry about those quick stops very often. I know I can go faster but why?
2015 RAM 3500 DRW Laramie Aisin 3.73

2014 Alpine 3500RE
dgwilson40 is offline   Reply With Quote
Old 12-27-2015, 11:54 PM   #13
Senior Member
Join Date: Jun 2015
Location: Viva Las Vegas
Posts: 251
I just pulled my rig from Dallas to Las Vegas. Averaged 68 mph. Mpgs were all over because of the elevation gains and hellacious winds. 9mpg Dallas to Albuqurque. 7mpg Albuqurque to Kingman. 13mpg Kingman to Las Vegas. Diesel.
2014 Grand Design Reflection 337RLS
2005 GMC Sierra 2500HD SLT CC 4x4
Zac808 is offline   Reply With Quote
Old 12-28-2015, 08:09 AM   #14
Senior Member
JBurg's Avatar
Join Date: Apr 2015
Location: Rock Springs, Wyoming
Posts: 368
Originally Posted by C130 View Post
65-75, tow with a 2015 F450. It's not any less safe towing at 70-75 than 65 if road conditions and traffic are suitable. For me it all depends on traffic and road conditions.


As far as fuel economy, I'm towing with a 2015 Ram, specifics in signature. The trailer weighs in around 23,000 pounds, and when we keep it at 75 mph I usually get around 8.0-8.3 mpg according to the EVIC. This will obviously vary a bit with headwinds or lots of hills. I've seen as low as 7.5 and as high as 9.1 for averages per tank (resetting mpg at each fill-up), and I try not to drop below half a tank.

2015 Ram 3500 Laramie Longhorn CC LB Dually. Cummins, Aisin, 4X4, 4.10 gears. Max towing-28,750. Max payload-5,436. 2016 DRV Mobile Suites 41RSSB4
JBurg is offline   Reply With Quote

5th wheel, tow

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Travel Trailer vs. 5th Wheel - Old Truck/New Truck jmlnarik iRV2.com General Discussion 11 12-13-2015 11:36 AM
Winnebago Destination 5th Wheel update mcumbie Winnebago Industries Owner's Forum 17 11-02-2015 10:01 PM
Would a Lab pick a Class A or 5th wheel? G-JLD9 RV'ing with Pets 14 04-20-2015 10:21 AM
Confused about 5th wheel pulling requirements gschooley Trailer Towing and Tow Vehicles Discussion 10 08-30-2014 08:03 PM
From 5th wheel to Navion IQ ajlcal Class C Motorhome Discussions 4 02-18-2014 07:45 PM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:47 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.