RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Powerstroke Engine Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-29-2018, 01:40 PM   #1
Senior Member


 
Join Date: Oct 2016
Posts: 1,305
Non towing MPG

So, I've used my truck almost exclusively for towing since initial break in. Currently making a trip without the trailer, and reset the computer MPG tracker - I know it's not perfect, but here's a surprise -

40-55 mph = 16-19 mpg

55-70 mph = sucks, not sure how bad, but would guess 12-14 mpg

75-90 mph = 16-19 mpg

Seems the sweet spot for mine is 1900-2100 RPM.

I was surprised to see better mpg above 75.
__________________

__________________
2017 F350 Powerstroke DRW 4x4
2013 Cedar Creek 36CKTS Custom - For Sale - See Classfieds
2018 DRV Fullhouse JX450 - Incoming
aknavy 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 03-29-2018, 02:22 PM   #2
Senior Member
 
60sumtin's Avatar
 
Outdoors RV Owners Club
Join Date: Jul 2017
Location: Cypress County, AB 🇨🇦
Posts: 2,583
Do the math using actual distance between fill ups and fuel needed to refill. An increase in fuel milage the faster you go seems unlikely.
__________________

__________________
2011 ORV Creek Side 22RB
60sumtin is offline   Reply With Quote
Old 03-29-2018, 05:50 PM   #3
Senior Member
 
Traildust's Avatar
 
Join Date: Jan 2000
Posts: 319
I am not sure about the trip computer on the new trucks but the one on my 02 Lariat 7.3 is a joke. I always do it the old fashion way, fill it to same spot each time divide miles driven by gallons used. The good old 7.3 CC,LB, 4X4 with a 3.73 limited slip 6 speed gets 18 to 20 highway 14 to 17 in town.
Bill
__________________
US Navy Retired.
"and that government of the people, by the people, for the people, shall not perish from the earth."
Traildust is offline   Reply With Quote
Old 03-29-2018, 05:53 PM   #4
Senior Member
 
Join Date: Nov 2015
Posts: 11,036
According to my 'Lie-O-Meter' I get 15-16 mpg combined

Real life.......not too concerned cause I drive a TRUCK
__________________
Is it time for YOUR Medication or Mine?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31
Old-Biscuit is offline   Reply With Quote
Old 03-30-2018, 12:38 PM   #5
Senior Member


 
Join Date: Oct 2016
Posts: 1,305
I've checked the mileage manually, and it's consistently 1-2 mpg less than the computer. So, I'm assuming that this is carrying over to the current computer calculations. While not the exact mpg, it is close, and it seems to be an interesting trend. My fill ups on the 700 mile trip, while not calculated, seem to bare this out as well.
__________________
2017 F350 Powerstroke DRW 4x4
2013 Cedar Creek 36CKTS Custom - For Sale - See Classfieds
2018 DRV Fullhouse JX450 - Incoming
aknavy is offline   Reply With Quote
Old 03-30-2018, 12:43 PM   #6
Senior Member
 
Join Date: Sep 2016
Location: SLC, UT
Posts: 1,107
if your diesel, My guess is you regenned during your 55-70mph and bombed your mileage. Makes zero sense for it to be lower then the high speed.

Last 85mph run we did ~120miles we got about 15mpg avg. Actually worse mileage then my old 6.0 truck at similar speeds, but lot more power and emissions junk.

the 6.7 has the power to do it, but your in the boost.
__________________
2017 F-350 6.7 Diesel, CCSB SRW, FX4. Curt Q16/R16 - 11.5K GVWR
2005 Alfa SeeYa! SYF30RLIK - 16.2K GVWR, 4xGC2, 600W Solar MPPT
--Full time July 2016 to January 2019--
mrgrayaz is offline   Reply With Quote
Old 12-06-2018, 02:38 PM   #7
Senior Member
 
Join Date: Nov 2017
Location: Wellington Nevada
Posts: 130
I have a 2015 6.7 F350 srw, sweet spot with the 3.55 gears is 1700-1800 rpm or 75-80 mph in the flats 20mpg's, 23k mile adv is 16.8 mpg
__________________
2004 Magna 42' 3 slide Chalet CC#6315M
C-15, 515HP 1650tq.
caryt is offline   Reply With Quote
Old 11-06-2019, 05:40 AM   #8
Junior Member
 
Join Date: Aug 2018
Posts: 23
Last weekend I drove from Sarasota to Key West and back with a side trip to the port of Miami on the way down. Mostly very light traffic both ways with lots of cruise control @ the speed limit driving over 750 miles. Admittedly almost perfect conditions, got 21.5 MPG in my 2012 F350 6.7 diesel.

I think the absolute perfect condition for this truck would be about 45 MPH on cruise control. There were stretches on US1 in the Keys where it appeared to be just coasting with no effort at all.
__________________

heySkippy 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
Any writers of fiction,non fiction, published or non published? Self published fleurdalune Hobbies, Passions & Pastimes 58 04-01-2017 03:00 PM
Think Ton MPG instead of MPG MrTransistor Winnebago Industries Owner's Forum 6 03-02-2008 08:24 AM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:28 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×