Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-24-2012, 10:45 PM   #1
3 Rivet Member
 
jornvango's Avatar
 
Currently Looking...
Austin , Texas
Join Date: Oct 2012
Posts: 224
Good mileage?

We're on the way back to Texas from our first long trip with our '95 Sovereign (22 ft).
Our towing vehicle is a 2006 Jeep Commander 5.7L HEMI 4x4.

Our gas mileage on this trip is around 12 MPG. On the Interstates and highways, we drive around 60.

Is 12 MPG "good"?
Without towing the trailer the Jeep gets around 18 MPG on long trips.
We're wondering if there is a car out there that can tow our trailer and still get around 20
MPG (or better)? Maybe a recent Hybrid SUV or a Diesel truck?
__________________

__________________
jornvango is offline   Reply With Quote
Old 11-25-2012, 04:40 AM   #2
Well Preserved

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,189
Yes, 12 is good. I can't rhink of anything that gets better mileage towing, and I can't think of any truck that gets 20 not towing that would be capable of towing your trailer.
__________________

__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
overlander63 is offline   Reply With Quote
Old 11-25-2012, 06:15 AM   #3
CLOUDSPLITTER "Tahawas"
 
ROBERT CROSS's Avatar

 
2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
Posts: 11,153
Images: 1
Thumbs up

Quote:
Originally Posted by overlander63 View Post
Yes, 12 is good. I can't rhink of anything that gets better mileage towing, and I can't think of any truck that gets 20 not towing that would be capable of towing your trailer.
^^^^^^^^
YEP! Remember you've got your hotel room and restaurant right behind you.

'kind'a takes the edge off "poor" mpg.

Bob
__________________
ROBERT CROSS is offline   Reply With Quote
Old 11-25-2012, 06:33 AM   #4
Rivet Master
 
Bruce B's Avatar

 
2012 16' International
Jamestown , Rhode Island
Join Date: Mar 2012
Posts: 1,385
Images: 1
I am always a little fascinated by our obsession with fuel mileage.
I find myself doing this too so please don't think I am being critical here....
Just for the heck of it I have calculated actual fuel costs for towing our trailer this year. So far this year we have towed about 5000 miles. That number will double before the year is out so we can see what the numbers are for my F-150 vs the 20mpg diesel you desire. I will calculate the costs using the actual locally available average price according to gasbuddy.com. Should be close enough for a picture.

Here we go: 5000 miles at 12 mpg regular fuel at $3.64 gives me a cost of $1516.66.
At the 13.5 I seem to be averaging, the number is $1348.15.
Now the 20mpg diesel at a fuel cost of $4.07 gives us a cost of $1017.50.

So, for 5000 miles a year towing, the difference in cost of fuel between a 12mpg gas engine and a 20 mpg diesel engine is exactly $499.16.

I am not aware of any vehicle that can get 20 mpg while towing but perhaps a Touareg diesel can if pulling a light enough trailer.

Certainly for us the additional savings of $660 some odd dollars a year in towing fuel costs (for 10,000 miles of towing) do not make the diesel a necessity.

Don't think I do not like diesels, if I had the option in the future to have a diesel F-150 I would be there in a flash. It is just not easy to rationalize based on cost of fuel saved towing...

Bruce
__________________
Bruce B is online now   Reply With Quote
Old 11-25-2012, 06:40 AM   #5
Rivet Master
 
2011 23' Flying Cloud
Durango , Colorado
Join Date: Oct 2010
Posts: 501
12 mpg is probably within expectations for your rig. My 2011 FC23FB is similarly sized, and I tow with an 08 Jeep Grand Cherokee Diesel. I averaged 16.3 mpg (measured) on this current trip from CO to WA, keeping the cruise control on 60. Of course I pay the diesel 'penalty' of about 7% higher than premium (AAA national averages).
__________________
Safe Travels,
Joe & Joan Donnaway
Durango, CO
JamuJoe is offline   Reply With Quote
Old 11-25-2012, 09:32 PM   #6
4 Rivet Member
 
elolson's Avatar
 
2000 34' Excella
Tucson , Arizona
Join Date: Apr 2006
Posts: 375
That is excellent mileage towing. I got 14.4 with a 2005 Cummins and am getting 10.9 with a 2002 F350 7.3l powerstroke both towing a 34'. You are right in there with the diesels.
__________________
elolson is offline   Reply With Quote
Old 11-25-2012, 10:32 PM   #7
Vintage Kin
 
slowmover's Avatar
 
Fort Worth , Texas
Join Date: Nov 2006
Posts: 7,577
Images: 1
From 18 to 12 is a change of 33%. From the 1960's until now trailer towing with a gasoline passenger vehicle typically sees 30-40% increased consumption (other conditions held constant).

You'd have quite a few people in the square-white-box-travel-trailer crowd jealous of double-digit mpg. Those are often 7-9 mpg for comparable.

MPG in towing isn't about length or weight so much as frontal area and overall aerodynamic resistance. Yes, there are turbodiesel SUVs that can hit the low 20's with a TT the size of yours.

But, as BruceB notes above: how many nights will you be aboard, and over how many miles?

The "best" TV is the one which best meets solo duties and can also tow the trailer. Economy has to be about all ownership & operational costs.

Keep records. Make notes of temps, altitude, etc. Different vacations will have different fuel consumption numbers. A truly accurate picture takes time & miles.

And, there are ways to improve the mpg of most any tow rig. Having the right TT was the biggest part of the solution to lowest operational costs (given TT's of the same price which will also last the same time/miles).

.
__________________
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
slowmover is offline   Reply With Quote
Old 11-25-2012, 10:56 PM   #8
Rivet Master
 
MrUKToad's Avatar

 
2011 28' International
Chatham , Ontario
Join Date: Dec 2010
Posts: 1,372
Images: 17
Blog Entries: 13
Quote:
Originally Posted by REDNAX View Post
MPG in towing isn't about length or weight so much as frontal area and overall aerodynamic resistance. Yes, there are turbodiesel SUVs that can hit the low 20's with a TT the size of yours.
Rednax is right, most people get a similar mpg regardless of TV or trailer; it's that frontal area that has the most influence on gas mileage and in that respect, we're all quite similar. My figures do go south when the wind is blowing hard...

We average 12mpg (US) over the year when towing but 28 mpg (US) when not towing, and most of our mileage is not towing. This is using a 3.5L V6 Toyota Sienna towing, some of the time, a 2011 28' International.

Those figures work for us and the way we use our vehicles - others will have different stories to tell.
__________________
Steve; also known as Mr UK Toad

"You can't tow that with that!"

http://toadsoftowedhaul.com
MrUKToad is offline   Reply With Quote
Old 11-28-2012, 10:53 AM   #9
3 Rivet Member
 
jornvango's Avatar
 
Currently Looking...
Austin , Texas
Join Date: Oct 2012
Posts: 224
Thanks everyone.

What I'm hearing is that we'd better get used to 12mpg

Uphill through mountains around Ruidoso (NM) was a different story: at one point, the mpg dropped to 4!
__________________
jornvango is offline   Reply With Quote
Old 11-28-2012, 10:58 AM   #10
Rivet Master
 
daveswenson's Avatar
 
2012 28' International
Issaquah , Washington
Join Date: Sep 2012
Posts: 767
Quote:
Originally Posted by jornvango View Post
Thanks everyone.

What I'm hearing is that we'd better get used to 12mpg

Uphill through mountains around Ruidoso (NM) was a different story: at one point, the mpg dropped to 4!
I wish I got 12 mpg.

Dave
__________________
daveswenson is offline   Reply With Quote
Old 11-28-2012, 11:17 AM   #11
Rivet Master
 
TG Twinkie's Avatar
 
1974 Argosy 26
Morrill , Nebraska
Join Date: Nov 2009
Posts: 5,139
Images: 2
Blog Entries: 5
Just completed a 2700 mile trip thru CO, UT, AZ, WY.. Averaged 13.2 with my '98 Dodge 2500; 5.9 Ltr. V8. 5 speed manual transmission. Pulling a '74 Argosy 26'. Never drive over 60mph.
__________________
Knowledge: "A gift to be shared. A treasure to receive."
TG Twinkie is offline   Reply With Quote
Old 11-30-2012, 10:12 AM   #12
Vintage Kin
 
slowmover's Avatar
 
Fort Worth , Texas
Join Date: Nov 2006
Posts: 7,577
Images: 1
Aero resistance doesn't just rise, it shoots upwards past 60-mph.

Example:

Most folks resistant to better mpg (as well as longer tire life, driver having wider periperhal views, etc) aren't aware of how much time they actually spend at travel speed . . less than they would imagine versus recording it to see the data. Control over the stops made during the day is the key to best average mph from start to finish. Key-on to key-off. IOW, a "slower" travel speed is sometimes just as fast or faster than one higher in mph. But with fewer lane changes, fewer braking & acceleration events, and fewer steering wheel corrections, the lower speed can show significantly better FE in addition to lower horsepower demand via aero resistance.

When FE [fuel economy] is understood to be fuel cost per mile (cents per mile) then changes to an established baseline (records of all gallons & miles) when expressed as a percentage change can take the sting out of fuel consumption.

As an overall example, one can -- in ones solo daily duties -- learn to combine trips and drive fewer miles to accomplish the same ends. And then drive those remaining miles at a higher skill level for better solo FE. Done correctly this can pay a high percentage of vacation travel miles or more (assuming vacation miles are around 5,000 annually).

This isn't hypothetical, I've been able to change the numbers on my truck, solo, to underwrite in excess of 5k annually (given trailer towing numbers for level Interstate). The point would be that the absolute number folks think they get while towing can be understood from a larger context and modified from that position to change the overall fuel economy of the tow vehicle. A reduced cpm in all instances.

If I said my vacation travel fuel was free, would you believe it? Given the same annual fuel budget (at a constant fuel cost) it is entirely possible. My signature (below) shows my real costs. Easy to budget for fuel given actual consumption numbers, solo or towing.

It all starts and ends with records. And the willingness to make changes in driving habits.

.
__________________
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
slowmover is offline   Reply With Quote
Old 12-04-2012, 05:10 PM   #13
Rivet Master
 
mstephens's Avatar
 
2013 25' Flying Cloud
Cat City , California
Join Date: Sep 2012
Posts: 854
I wish I was getting 12. I am right about at the point now where I am going to stop worrying about, thinking about, and obsessing about gas mileage while towing. I've spent a year now towing our new FC 25 on about 10,000 miles of every kind of road imaginable, and my grand average is about 10.2. The truth is simply that towing trailers around the country is not a very economical activity per se, it's a kind of expensive one that happens to be very fun and interesting and exciting. Ya gotta pay for it. It is in my view a luxury pursuit. You can only do it if you have some cash to spare. Kinda like yachting or golf.

I suppose rather than wish for 12MPG, I'll switch instead to wishing that gas would come down to $2.89/gal. That would make me happy as a clam too. But either way, we'll probably still do 15k to 20k miles in trailering next year.

Enjoy the 12MPG - you're kind of at the high end of the curve there!
__________________
mstephens is offline   Reply With Quote
Old 12-04-2012, 07:12 PM   #14
4 Rivet Member
 
Bk Yd Safari's Avatar
 
2008 20' Safari
Tunnel Hill , Georgia
Join Date: Aug 2011
Posts: 291
Images: 3
I tow with a 2009 1500 Chevy Silverado 5.3 V8. Recently made a trip through SD, MT, WY, UT, NV, AZ and several states in between. Total milage was just over 6500 with 5600 with AS in tow. Average mpg for the trip was 14.0. Generally try to keep hyway speed below 65. Leaving in a few weeks for south FL and hoping gas prices will continue to ease.
__________________

__________________

Remember its not the destination, but rather the journey.... its what's in the middle that matters the most!
Bk Yd Safari is offline   Reply With Quote
Reply


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



Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:16 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.