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towing MPG??

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Topic: towing MPG??
Posted By: bruceb
Subject: towing MPG??
Date Posted: 10 Oct 2020 at 3:56pm
We are thinking of buying our first RV and it may be an RPOD.  I was wondering what you tow yours with and what mileage you get towing and not towing?
Thanks



Replies:
Posted By: mcarter
Date Posted: 10 Oct 2020 at 4:23pm
Honestly, your gas mileage will be different. It depends upon your driving style and conditions. If you plan to buy a Pod, buy a tow vehicle that is equipped for towing and has a tow capacity of at least 5000. I have towed my 178 with a 2006 Silverado, a 2014 Silverado and a 2016 Colorado, all did an excellent job. Obviously I am a Chevy fan, but all the auto manufacturers make compatible vehicles. You'll need to do research for an affordable tow vehicle, that meets tow capacity, electric brakes and possibly a sway system. Do homework, and talk to folks that have done this awhile. I have seen folks hook trailers to tow vehicles and nothing about it is safe. Improperly operated tow situations are dangerous. For everybody.

-------------
Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."


Posted By: offgrid
Date Posted: 10 Oct 2020 at 4:44pm
Towing an rPod with a modern fuel efficient vehicle is pretty much independent of what that vehicle is or what fuel economy it gets not towing. That is because the horsepower demand towing at highway speeds is dominated by air drag on the trailer. So, your mileage may vary, but mostly due to the speed you tow at, whether you're climbing hills or not. and if you have a headwind or tailwind. On flat ground with no wind you can expect to get around 15-16 mpg at 55 mph, about 14-15 mpg at 60, and down around 12 at 65 mph. 

So, get a tow vehicle capable of handling the fully loaded trailer that can also carry a realistic amount of stuff in the TV itself, and have a safety margin above that. Forget the trailer empty weight specs. Do not get FWD, and get a tow vehicle that is approved for using a weight distribution hitch. 

My Toyota Highlander fills that bill for the 179 or other similar sized rPods, but I wouldn't go any smaller than that. I tow at 60 and, sure enough, get 14 mpg under flat no wind conditions. I get a little better than the EPA book fuel economy with it not towing, around 19 city/24 highway. 


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: bruceb
Date Posted: 10 Oct 2020 at 4:58pm
we currently have a 2020 1500 4x4 silverado with the 3.0 liter diesel.  Gets 27 MPG empty and 17 MPG towing our 4000 lb boat.  Can you make any estimate for MPG towing an RPOD?
Thanks


Posted By: podwerkz
Date Posted: 10 Oct 2020 at 5:07pm
More than 10mpg and less than 20 mpg.

If you are camping on a strict budget and fuel mileage will make or break your ability to afford this, then buy a tent and a small car. 

Seriously, there are so many variables when towing...but a good estimate will be in the low to mid teens like nearly everyone else towing r-pods.


-------------
r・pod 171 gone but not forgotten!


Posted By: offgrid
Date Posted: 10 Oct 2020 at 5:15pm
Originally posted by bruceb

we currently have a 2020 1500 4x4 silverado with the 3.0 liter diesel.  Gets 27 MPG empty and 17 MPG towing our 4000 lb boat.  Can you make any estimate for MPG towing an RPOD?
Thanks

Its not weight related, its frontal area and speed related. 

Sure, I can roughly estimate it for you, if you provide a bit more info. What speed do you plan to tow at? Which rPod are you looking at? 


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: mcarter
Date Posted: 10 Oct 2020 at 5:19pm
Bruceb,

Expect about the same as your boat.

-------------
Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."


Posted By: bruceb
Date Posted: 10 Oct 2020 at 5:19pm
lets say its a 192 at 70 mph.  I like to get there.


Posted By: offgrid
Date Posted: 10 Oct 2020 at 5:52pm
OK I'd estimate around 11-12 mpg for your diesel towing that trailer at that speed. Flat ground, no wind, good pavement.  Your fuel economy is getting killed by the speed. Air drag goes up with the square of the speed so your fuel economy is only going to be about 75% of what it would be at 60 mph.  

-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: GlueGuy
Date Posted: 10 Oct 2020 at 8:10pm
Originally posted by bruceb

we currently have a 2020 1500 4x4 silverado with the 3.0 liter diesel.  Gets 27 MPG empty and 17 MPG towing our 4000 lb boat.  Can you make any estimate for MPG towing an RPOD?
Thanks
Towing a boat there is not nearly as much wind resistance, so I would expect a bit worse than that with an Rpod.


-------------
bp
2017 R-Pod 179 Hood River
2015 Ford F150 SuperCrew 4WD 3.5L Ecoboost


Posted By: Dirt Sifter
Date Posted: 10 Oct 2020 at 11:23pm
I'd say 12 - 14 mpg, but wind resistance is the issue. Also, at 70 mph on TT tires expect to be slowed by blow outs from time to time. 65 gets you there consistently quicker in my experience. The R-Pod is a great choice.


-------------
Greg n Deb 2020 195 HRE
'07 Tundra 5.7L., '17 Tacoma 3.5L. Both with tow packages
1 Puggle, 1 Chihuahua support staff


Posted By: StephenH
Date Posted: 11 Oct 2020 at 8:42am
In general, agree with the range, but we have experienced 11-16. Less if we wanted to try to go faster and in the mountains. Some of those fill-ups were in the 8-9 mpg range. I make it a practice to drive no faster than 60 mph. I get there and am much more relaxed than when I tried to drive faster.


-------------
StephenH
Happy is the man that findeth wisdom,...

http://www.rpod-owners.com/forum_posts.asp?TID=7712 - ouR escaPOD mods
Former RPod 179
Current Cherokee Grey Wolf 24 JS


Posted By: offgrid
Date Posted: 11 Oct 2020 at 8:51am
Originally posted by GlueGuy

 
Towing a boat there is not nearly as much wind resistance, so I would expect a bit worse than that withy an Rpod.

GlueGuy is correct.  if I run a rig towing a 4000 lb boat with a frontal area of 35 square feet at 70 mph I get  right at the 17 mpg on diesel. Change that to an rpod 192 with about 55 square feet frontal area, same weight and speed, I get 12 mpg. The combo of relatively high speed and dragging a big box around does it. 

Here's the fuel economy model I'm using in case you're interested.

https://ecomodder.com/forum/tool-aero-rolling-resistance.php - https://ecomodder.com/forum/tool-aero-rolling-resistance.php


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: bruceb
Date Posted: 11 Oct 2020 at 9:02am
that is a cool web site.
Ya  I understand the drag thing.  I get 1 to 1.5 mpg better towing my boat with the cover than uncovered.
Just trying to figure out if one shape of TT is really better than another.  Rpod vs airstream vs large teardrop vs traditional box.


Posted By: offgrid
Date Posted: 11 Oct 2020 at 9:30am
Originally posted by bruceb

that is a cool web site.
Ya  I understand the drag thing.  I get 1 to 1.5 mpg better towing my boat with the cover than uncovered.
Just trying to figure out if one shape of TT is really better than another.  Rpod vs airstream vs large teardrop vs traditional box.

I've thought about that and concluded that the differences in drag coefficient between the different TT shapes are probably going to be pretty small. 

Most of the drag on a TT is due to air flow separation on the rear. If you look at the rear deck shapes of cars with good aerodynamics they all have a very gentle taper to prevent airflow separation as long as possible. From what I read the taper/slope has to be no more than 15-20 degrees. The big teardrops taper faster than that. There aren't any TT's that do that other than maybe this one that I've seen. 

https://bowlusroadchief.com/ - https://bowlusroadchief.com/

Not having a couple of hundred k to throw at a TT that one's kind out of the question. Confused

So, when I run that calculator I just leave the Cd at around 040- 0.45 for towing. That's also pretty similar to what a boxy pickup or SUV typically is. If you want to reduce drag there is one sure fire way, tow slow and enjoy the trip. 


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: bruceb
Date Posted: 11 Oct 2020 at 9:33am
Originally posted by Dirt Sifter

I'd say 12 - 14 mpg, but wind resistance is the issue. Also, at 70 mph on TT tires expect to be slowed by blow outs from time to time. 65 gets you there consistently quicker in my experience. The R-Pod is a great choice.
Why blow outs?  I tow my boat to Florida from Wisconsin regularly at 70-80 mph and have never had issues.


Posted By: offgrid
Date Posted: 11 Oct 2020 at 10:28am
What tires do you run on that boat trailer? 

Travel trailers generally come with ST tires which unless marked with a speed rating are rated for 65 mph. If you want to run at the speeds you're talking about you will need an M rated tire (81 mph) at least. 

Its also important to keep trailer tires inflated to their max pressure rating cold. Trailer tires have thicker sidewalls to handle the loads. Thicker sidewalls don't release heat as quickly so can overheat at high speeds or when underinflated due to the increased sidewall flexing. 

Trailer tires come in load ratings C, D, and E.  Run a tire with a load rating well above the axle rating of the trailer divided by 2. The OEM tires are typically pretty marginal in their load rating and are somewhat notorious for blowouts. 


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: Capt Kidd
Date Posted: 11 Oct 2020 at 11:57am
I tow with a 2016 Dodge Durango with a v-6 it is rated to tow up to 6200#.  I currently to a RP0d 196.

At 60 mph on flat level ground with no head wind I get 12-13 mpg.  I tow in 7th gear at 2000 rpm.  I got the same mileage when towing my 179 which was 1,000# lighter.  One of these days I will tow at 55 mph to see what if any difference in mileage is. 

I find if I let the car select the gear it wants to tow in 6th gear or 400 rpm higher. I have paddle shifters so it is easy to select the gear I want.  By using the paddle shifters I pick up 2 mpg. 


-------------
The Pirate's Pod


Posted By: jato
Date Posted: 11 Oct 2020 at 5:42pm
Have towed our 2011 177 with the following vehicles  '94 F-150 5.0L V-8 stick shift, '08 Ford Explorer 4.0L V-6, '13 Ford Explorer 3.5L V-6 - all these add up to 28,000 towing miles for the first 8 years of ownership and overall average was 12 - 12.5 mpg traveling at 65 mph which includes a lot of mountain driving in the Rockies as well as across the plains and about 5% city travel.  A year ago we went 6000 miles with an '11 F-150 5.0L V-8 automatic with similar speeds as above and only averaged 11.5 mpg.  Have now upgraded to a '17 F-150 3.5L V-6 Ecoboost and don't have enough miles on to give a good figure for mileage.  All travel has been on 'C' rated china tires at 50 psi, no blowouts, no flats, no problems.

-------------
God's pod
'11 model 177
'17 Ford F-150 4WD 3.5 Ecoboost
Jim and Diane by beautiful Torch Lake
"...and you will know the Truth and the Truth will set you free."


Posted By: furpod
Date Posted: 11 Oct 2020 at 9:30pm
Originally posted by bruceb

that is a cool web site.
Just trying to figure out if one shape of TT is really better than another.  Rpod vs airstream vs large teardrop vs traditional box.


Our 31 foot, 7,000lb Airstream got about 20% better mileage as our 3,500lb RPod, and Interestingly enough, our 6,000lb Lance gets +/- about 5% the same as the Pod.. We make several trips a year over pretty familiar ground, through the same mountains, etc. Repeatedly using the same fuel stops and comparing top off numbers, the variation between the Pod and Lance can almost totally be written off to weather or traffic.

That said.. you couldn't give me another Airstream, regardless of how well it tows.


Posted By: Pod_Geek
Date Posted: 12 Oct 2020 at 8:55am
Originally posted by Dirt Sifter

...Also, at 70 mph on TT tires expect to be slowed by blow outs from time to time. 65 gets you there consistently quicker in my experience....

Big smile

So true.


-------------
2020.5 R-Pod 195 Hood River
2018 RAM 2500 6.4L


Posted By: bruceb
Date Posted: 12 Oct 2020 at 9:25am

That said.. you couldn't give me another Airstream, regardless of how well it tows.
[/QUOTE]

Why is that??


Posted By: furpod
Date Posted: 12 Oct 2020 at 11:06am
Originally posted by bruceb


That said.. you couldn't give me another Airstream, regardless of how well it tows.

Why is that??
[/QUOTE]

Storage sucks, you know, all those square cookie, cracker, cereal, potato, etc etc boxes.. they won't go in the cabinets very well. you know, square box, round cabinet. You also LOSE tons of storage capability to the rounded profile. Since the main storage areas inside any RV are along the walls and periphery, when you round that, you give up 50% of possible space.

You worry about every possible scenario of what can scratch or dent it, constantly. I have personally leaned my bike against the Pod and the Lance, you can bet your bippy not the AS.

All the components are the same as what everybody else uses, and 95% of owner issues, regardless of brand, are components NOT manufactured by the builder.

AS continues to use a plywood floor, that is near impossible to repair when it gets wet, and it will.

EDIT: This was just sent to me in PM.. after 2 decades of owners asking, in the last couple weeks AS made this change. (thank you PilotPodder) So if you get a new build, you will probably have a composite floor.
https://www.airstream.com/blog/composite-flooring-making-improvements-for-traditional-travel-trailers/ - https://www.airstream.com/blog/composite-flooring-making-improvements-for-traditional-travel-trailers/

They have a VERY narrow temperature comfort range. Between about 55F and 85F (maybe 90F if in full shade), the heat and a/c can keep up.. above or below.. not so much.

No slide means you have to go 6-12 feet longer to get the same floor space when set up..

Among many other issues I see with them.

I don't mean to tirade against them, or any other brand, but having owned one, like I said, won't ever again. For many people, all those are "not an issue" but they were to us. Our 18 foot RPod was way more "usable" or "functional" then our 31 foot AS. And the new camper, at 27 feet, beats them both in almost every category. That said, we anticipate a change in our camper needs in a few more years, and intended to go back to a Pod, but the out of production status of both the 177 and 178, means we probably won't.




Posted By: offgrid
Date Posted: 12 Oct 2020 at 11:47am
+1 to all of the above. I've never owned an Airstream trailer but I did have both an AS and a Revcon RV for awhile. same set of issues, plus no basement storage either. 

OTOH, I certainly would take one if someone gave it to me, Airstreams are now so ridiculously expensive I could sell it, buy two complete rpod rigs like what I have now, tow vehicles included, and have enough left over to buy gas for the life of both rigs. 


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: jato
Date Posted: 12 Oct 2020 at 3:45pm

 That said, we anticipate a change in our camper needs in a few more years, and intended to go back to a Pod, but the out of production status of both the 177 and 178, means we probably won't.
[/QUOTE]  Furpod

Alas !  There is always the possibility of purchasing a used 177 or 178 as they haven't been out of production that long.  Of course if you are going to keep your Lance for another 5+ years before deciding to return to the R-Pod, it may be a bit more difficult to find one gently used and in mint condition.


-------------
God's pod
'11 model 177
'17 Ford F-150 4WD 3.5 Ecoboost
Jim and Diane by beautiful Torch Lake
"...and you will know the Truth and the Truth will set you free."


Posted By: Olddawgsrule
Date Posted: 12 Oct 2020 at 3:54pm
LOL, OG! I'd do the same!

We found we could average 14mpg with our 2017 Tacoma, but I drove at 62mph max. Rpm's were kept low and typically the last one up the hills (unless there was a hiker nearby). 

Personally, I don't believe there's a difference between manufacture's when it comes to towing mpg. More like your driving style/habit.


-------------
https://www.youtube.com/channel/UCJduGeZNFgtptH67leItRFQ - Byways no Highways
2017 Tacoma
http://tnttt.com/viewtopic.php?f=55&t=72408 - Truck Camper Build
2004 F150 My Overlander


Posted By: furpod
Date Posted: 12 Oct 2020 at 5:10pm
Originally posted by jato


 That said, we anticipate a change in our camper needs in a few more years, and intended to go back to a Pod, but the out of production status of both the 177 and 178, means we probably won't.
  Furpod

Alas !  There is always the possibility of purchasing a used 177 or 178 as they haven't been out of production that long.  Of course if you are going to keep your Lance for another 5+ years before deciding to return to the R-Pod, it may be a bit more difficult to find one gently used and in mint condition.
[/QUOTE]

It will probably be 6 years.. while I continue to enjoy, and lounge about in retirement, she still has a ways to get to 62.. or even worse, 65. LOL
Hard to believe it's been almost 25 years since I hung up my spurs..
(we are actually, seriously, considering a slide in truck camper. Lance 1172 on a F450 4x4 is the current dream rig)


Posted By: offgrid
Date Posted: 12 Oct 2020 at 5:34pm
Wow, that is a serious truck camper. I assume you are never expecting to take it off the truck? How about a dedicated expedition rig like this as an alternative  Big smile?

https://earthroamer.com/hd/ - https://earthroamer.com/hd/  


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: furpod
Date Posted: 12 Oct 2020 at 7:06pm
We camp with friends in the winter for a bit who have an Earthroamer.. Interestingly rig, but bigger than we want and you can't drop it like a slide in..


Posted By: Olddawgsrule
Date Posted: 13 Oct 2020 at 7:45am
Originally posted by furpod

We camp with friends in the winter for a bit who have an Earthroamer.. Interestingly rig, but bigger than we want and you can't drop it like a slide in..

Research Overlanders and check the lifting roof models. Sized much better, low drive profile. You can get either a slide in or frame up. I built a frame up due to better floor area. 


-------------
https://www.youtube.com/channel/UCJduGeZNFgtptH67leItRFQ - Byways no Highways
2017 Tacoma
http://tnttt.com/viewtopic.php?f=55&t=72408 - Truck Camper Build
2004 F150 My Overlander


Posted By: furpod
Date Posted: 13 Oct 2020 at 7:54am
Originally posted by Olddawgsrule

Originally posted by furpod

We camp with friends in the winter for a bit who have an Earthroamer.. Interestingly rig, but bigger than we want and you can't drop it like a slide in..

Research Overlanders and check the lifting roof models. Sized much better, low drive profile. You can get either a slide in or frame up. I built a frame up due to better floor area. 


Yes.. that would be MY choice.. I have been to the Four Wheel Campers factory 3 times, and know exactly which model I want.. My parents live about 20 minutes from there, and as a kid, my uncle had one. We were overlanding in the high sierra and "rural" western Nevada long before it was cool.. LOL

But my co-pilot is not interested in such ruggedness. She wants a full bath, and full facilities and nothing smaller then our 177 was. So...


Posted By: offgrid
Date Posted: 13 Oct 2020 at 8:37am
Originally posted by furpod

We camp with friends in the winter for a bit who have an Earthroamer.. Interestingly rig, but bigger than we want and you can't drop it like a slide in..

It's been about 35 years since I had a slide in truck camper, and I recall it being a pain taking it on and off the truck, to the point that we just didn't use it, because I needed the truck to be a truck during the week.  Wound up selling it and getting a Toyota mini motorhome that we could just get in and go. 

Are the slide ins any easier to deal with these days? 


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold


Posted By: furpod
Date Posted: 13 Oct 2020 at 4:07pm
Yes, at least the people we know who use them say no big issue. The ones we are looking at have power jacks/levelers. Use FastGuns tie downs. Flip 4 levers, unplug the umbilical, press the button on the remote to lift the camper, pull out from underneath, press button to level and lower the camper. Make s'mores.


Posted By: offgrid
Date Posted: 13 Oct 2020 at 4:42pm
Sounds like they have come a long way. No auto leveling electric jacks back in the day, or at least nothing generally available. Ran around cranking them one by one. I also had a pass through boot to the cab which was a pain to connect up and keep from leaking, but double cab pickups were rare then so our kids rode in the back and needed supervision and a/c. 

IIRC, my other problem was getting it lined up and centered where I wanted it when putting it on the truck. 


-------------
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold



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