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

Go Back   Thor Forums > Thor Motorcoach & Motorhome > Class A Motor Coach
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 11-27-2022, 03:28 PM   #1
Senior Member
 
paulwadley's Avatar
 
Brand: Thor Motor Coach
Model: Miramar 37.1
State: California
Posts: 2,146
THOR #12698
2022 Thor Miramar 37.1 Fuel Economy

We just returned from a roundtrip to Utah while towing our 2014 Ford Flex. We got an overall 7.7 mpg. That trip was a total of 1380 miles. I did drive 55 mph while in California since they have it posted along the freeways for that speed while towing and I drove 60 mph in the other states. While at 60 mph, the rpms stayed around 2200 and at 55 mph the rpms stayed at 2000 on the flat open areas. There were several climbs and descents from Anaheim Hills California to Salt Lake City Utah. Our Ford Flex weighs 4600 pounds and we used our brand new Blue Ox Tow Bar/base plate and the Demco Stay and Play Duo braking system. There was a big difference from us towing using a tow dolly with the same car and the Blue Ox Tow Bar. Musch easier using the Blue Ox System. I was very happy with the fuel economy towing our car. We have another trip back to Salt Lake City Utah just after Christmas and will compare our results.


Paul

__________________
paulwadley is offline   Reply With Quote
Old 11-27-2022, 05:14 PM   #2
Senior Member
 
Dan-sr@perra-us.net's Avatar
 
Brand: Thor Motor Coach
Model: ACE 30.3
State: Iowa
Posts: 177
THOR #28145
My experience form trips to Colorado with my Tiffin Allegro was that I always got better gas milage in the mountains than I did on the open highways getting to Colorado. At the time most of the posted speeds were 55 or 65 and I did the speed limit. except in the mountains, I slowed down first because of the twisty roads. I took the curves at the speeds posted on the yellow recommended speed signs and second because the coach simply could not get back to the posted limit before the next curve, so I stopped trying. The other reason was that I spent a lot of time coasting downhill in second gear to keep my speed under control. I know that going uphill I was probably getting maybe 2mpg but going down the engine did little more than idle. In Colorado for every up there is an equal down, apparently the down segment fuel usage more than compensated for the heavy use going up. I if remember correctly I once managed 14mpg compared to 8mpg on the open highway. Also, as far could tell towing a 3900# Jeep Grand Cherokee did not make any noticeable difference in my fuel economy. If I recall correctly the sweet spot ofr the best overall fuel economy is somewhere around 45 - 50 MPH. I think my average speed in the mountains was about 40 MPH.
__________________
Dan
2018 Thor ACE 30.3
Towing 2020 Jeep Gladiator

Former 1996 28' Tiffin Allegro owner
Dan-sr@perra-us.net is offline   Reply With Quote
Old 11-28-2022, 12:56 AM   #3
Senior Member
 
HMCSW's Avatar
 
Brand: Thor Motor Coach
Model: Aria 3401
State: Washington
Posts: 594
THOR #22245
Sounds right- we get 8.9- 10.2 in our 3401 Aria. We travel from Washington to Utah, Ca, Oregon. Towing our Grand Cherokee. Always posted Highway so: 60-70. Idaho is 80 but I don’t do that.
__________________
2021 Aria 3401
2021 Grand Cherokee Trailhawk - toad
2010 Porsche Boxster(trailered)
Retired US Navy Corpsman HMC(SW)(FMF)
HMCSW is offline   Reply With Quote
Old 11-28-2022, 04:44 PM   #4
Senior Member
 
Dan-sr@perra-us.net's Avatar
 
Brand: Thor Motor Coach
Model: ACE 30.3
State: Iowa
Posts: 177
THOR #28145
Quote:
Originally Posted by HMCSW View Post
Sounds right- we get 8.9- 10.2 in our 3401 Aria. We travel from Washington to Utah, Ca, Oregon. Towing our Grand Cherokee. Always posted Highway so: 60-70. Idaho is 80 but I don’t do that.
Speaking of highway speed. Some manufactures limit the maximum speed you can go for the Toad. Be sure to find is there is a speed limit for your Toad.
__________________
Dan
2018 Thor ACE 30.3
Towing 2020 Jeep Gladiator

Former 1996 28' Tiffin Allegro owner
Dan-sr@perra-us.net is offline   Reply With Quote
Old 11-28-2022, 08:34 PM   #5
Senior Member
 
RACarvalho's Avatar
 
Brand: Thor Motor Coach
Model: 2021 Hurricane 34R
State: Indiana
Posts: 438
THOR #19887
Quote:
Originally Posted by paulwadley View Post
We just returned from a roundtrip to Utah while towing our 2014 Ford Flex. We got an overall 7.7 mpg....

Paul
That is in line with what we experience.
Our rig does 7.4mpg @ 65mph towing a Buick Envision.
RACarvalho is offline   Reply With Quote
Old 11-28-2022, 10:08 PM   #6
Site Team
 
16ACE27's Avatar
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 11,029
THOR #7035
Quote:
Originally Posted by Dan-sr@perra-us.net View Post
Speaking of highway speed. Some manufactures limit the maximum speed you can go for the Toad. Be sure to find is there is a speed limit for your Toad.
Yep, it will be in the Toad's owners manual in the flat towing procedure. Our Sonic is limited to 65 MPH, no limit on the Colorado. Many Ford AT Toads have a 70 mph limit.

Realize that is a steady-state limit imposed by the manufacturer due to heat removal capability of the towed transmission. The Toad will not explode if you exceed it for short stretches.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad
16ACE27 is offline   Reply With Quote
Old 11-29-2022, 01:39 AM   #7
Senior Member
 
HMCSW's Avatar
 
Brand: Thor Motor Coach
Model: Aria 3401
State: Washington
Posts: 594
THOR #22245
Quote:
Originally Posted by Dan-sr@perra-us.net View Post
Speaking of highway speed. Some manufactures limit the maximum speed you can go for the Toad. Be sure to find is there is a speed limit for your Toad.
we are good. no limit on the Cherokee. 63mph is a good place for mpg, usually 9.6-10.2 when not climbing our mountains.
__________________
2021 Aria 3401
2021 Grand Cherokee Trailhawk - toad
2010 Porsche Boxster(trailered)
Retired US Navy Corpsman HMC(SW)(FMF)
HMCSW is offline   Reply With Quote
Old 11-29-2022, 02:29 AM   #8
Senior Member
 
paulwadley's Avatar
 
Brand: Thor Motor Coach
Model: Miramar 37.1
State: California
Posts: 2,146
THOR #12698
Our Ford Flex has a 65 mph limit on flat towing. I believe it is due to heat build up in the tranny. They list that I need to start the car before towing and every 600 miles. I need to shift it to park/reverse and drive to circulate the transmission oil.

Paul
__________________
paulwadley is offline   Reply With Quote
Reply

Thread Tools
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


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 04:38 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2023, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2