Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

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.
Reply
  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 02-25-2022, 09:30 AM   #15
Junior Member
 
Join Date: Oct 2013
Posts: 2
I wouldn't screw around with a tuner--the folks who built your truck set it up for the best all-around performance and longevity. All the energy to move your rig is in the diesel fuel so there really isn't any magic way to burn less of it to do the same amount of work.
N2916S 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 02-27-2022, 05:48 PM   #16
Senior Member
 
Join Date: Dec 2006
Location: Foxboro Ma.
Posts: 1,087
speed and head winds have more to do with mileage then most owner think about. the differance between 65 and 75 MPH towing will give you 2 mpg less.
heavy foot + heavy trailer = light wallet at each fuel stop.
__________________
2015 42' Redwood RL38 Morryde IS , disk brakes, 1920W of solar with Victron everything,5 Battleborn, 2024 GMC DRW 3500HD ,60 gallons of fuel in the bed,Hensley BD5 air ride hitch.
xc-mark is offline   Reply With Quote
Old 02-28-2022, 01:00 PM   #17
Senior Member
 
Join Date: Jun 2021
Location: Stanislaus County, CA
Posts: 589
Quote:
Originally Posted by xc-mark View Post
speed and head winds have more to do with mileage then most owner think about. the differance between 65 and 75 MPH towing will give you 2 mpg less.
heavy foot + heavy trailer = light wallet at each fuel stop.
All depends on what you value your time at.

Here is an example of 5,000 miles at an assumed 3.899 per gallon across the trip, at a hypothetical 75@10 and 65@12 (mph@mpg). That is a 10.25 hour difference in raw drive time which equates to about $32/hr cost by going faster.

If you limit your drive time per day, that 10 hours is 2-4 extra days of travel based on a lot of people's limits. If you then convert those extra days to campground costs (unless you HH/BW/boondock/moochdock) that is $40-200 eating into the fuel savings, plus additional meals, laundry, etc.
Attached Thumbnails
Click image for larger version

Name:	cost_per_hour.PNG
Views:	20
Size:	9.0 KB
ID:	357893  
__________________
2021 Flagstaff 21DS behind a 2015 Silverado 2500HD
Renogy bits: 3000W Inverter/Charger, 400Ah LiFePo4, 40A DC-to-DC. Rich Solar bits: 400W of panels, 40A MPPT. Misc bits: LevelMatePro+, SolidRemote based wireless controlled LED storage lighting
TravelSolo is offline   Reply With Quote
Old 02-28-2022, 03:10 PM   #18
Senior Member
 
Join Date: Dec 2006
Location: Foxboro Ma.
Posts: 1,087
Quote:
Originally Posted by Nate_32 View Post
Appreciate all the help! I was guesstimating around 10 mpg on average. Have any of you used a diesel tuner to help get better mpg or power? I haven't used one before and curious whether they are worth the cost?
Nate ,

The tuner for the most part will not produce as good of results as a good driver and getting in the slip stream of a large truck running a speed you can live with. I am 17,000 lb 5th behind a crew cab 4x4 2020 GMC , hand calculated 8~9.5 MPG traveling around 70~75mph. Weight doesn't make a big difference unless you in big hills , flat its almost no difference. Big hills I would expect it to drop to maybe 5~7 mpg average.
__________________
2015 42' Redwood RL38 Morryde IS , disk brakes, 1920W of solar with Victron everything,5 Battleborn, 2024 GMC DRW 3500HD ,60 gallons of fuel in the bed,Hensley BD5 air ride hitch.
xc-mark is offline   Reply With Quote
Reply

Tags
tow, towing



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
F53 motorhome towing 7k realistic? Db327 Ford Motorhome Chassis Forum 51 04-28-2019 07:51 PM
ORV=lower MPGs? kone Outdoors RV Owner's Forum 72 04-17-2018 09:07 AM
1st long haul - Performance/Mpgs 6Kampers Trailer Towing and Tow Vehicles Discussion 16 08-05-2017 10:18 AM
How many MPGs on your DEF? PushedAround Class A Motorhome Discussions 7 02-08-2015 06:55 PM
Realistic dryweight for LE3505 MaxAZ Toy Haulers Discussion 15 07-06-2006 08:18 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 09:33 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.