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Old 09-11-2012, 09:35 AM   #57
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1994 30' Excella
alexandria , Kentucky
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I usually budget for 12 mpg when preparing for a trip. My truck dances by 1 mpg one either side of 12 depending on the hills and headwinds. Truck seems to like 65-70 mph - this is where the transmission rarely downshifts from 6 to 5 on the interstate hills.
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Old 09-11-2012, 10:50 AM   #58
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2006 25' Safari FB SE
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Funny Stuff

These threads make me laugh. I belong to a fly fishing club and the local fish and games people were trying to get a handle on why one of the fly fishing only lakes was on a decline. They came to the club and asked every member to record the number of fish and the size each time they went out. After a year of gathering data the club had listed many fish in the 15+ inch size and most of those were over 18 inches! The biologists went out and shocked the lake and found very few over 15 inches and NONE over 18 inches!

Fishermen are the best liars out there and then, I feel anyway, it has to be truck drivers pulling trailers. So here is my offering and it is pure truth, every word.

'08 Tundra 5.7, 4 wheel drive with tow package pulling my 25 footer. Just got back from a 400 mile trip that was relatively flat and got 12.4 mpg. But, to be totally honest, on longer trips I get just a hair over 11. On the 3877 mile trip to Albuquerque last year I got 11.3
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Old 09-11-2012, 01:45 PM   #59
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Most of the mileage reports here seem to be in line with expectation. Yes, it is wind and terrain that would make the biggest difference. Most of my driving has been in flat areas. The wind made a huge difference on that trip coming home. Semi trucks were, at times, getting heavy crosswinds and veering out of their lane ahead of us. When we would turn into the wind, my mileage dropped 5-6 mpg. That is quite a bit of resistance. As far as diesel/gas, I have a diesel car. The diesel has particular benefits besides mpg; however, it is a consideration that one has to consider when paying more for fuel.
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Old 09-11-2012, 01:52 PM   #60
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2005 28' International CCD
Arlington , Virginia
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Towing a 2005 International CCD 28' (5,500 empty, probably 6,500 with my gear, empty tanks) with a 2011 Dodge Durango V8 AWD, probably averaging 11-13 mpg, worse in the hills.
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Old 09-11-2012, 02:01 PM   #61
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1973 29' Ambassador
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11 MPG towing a 73 29' ambassador (5,000lb dry weight) behind a 2007 Chevy Tahoe 1/2 ton (5.3L gas with 4 speed automatic)

I get about 19 MPG on the highway without any trailer.
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Old 09-12-2012, 10:20 PM   #62
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1995 k2500 suburban with 454, towing 1976 31 foot sovereign: 8mph average figured by hand at the pump. Same suburban without the trailer: 10-12 mph. Only issue is that there really isn't that much pulling power for the mph cost. 35 or 45 through the Rockies while being passed by every diesel truck on the road, towing a 5th wheel, kind of kills..... Buuuuuttttt..... It's paid for.
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Old 10-04-2012, 10:37 AM   #63
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My TV is a GMC DuraMax diesel 6.6 liter turbo 4 door pickup. I tow a 2012 30 foot Classic (10,000 lbs GVW), my milage ranges from 12.1 to 14.7 @ 65 mph mostly in the mountains of CO & WY. I used to have a 5.7 liter gas Tundra, the mileage was 5 to 8 mpg at the same speeds and terrain.
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Old 10-05-2012, 07:13 AM   #64
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We have towed a 30' Flying Cloud with

2011 Ford F150 Ecoboost - 9.5MPG
2012 Ford F250 Diesel 6.7 - 14.00 MPG
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Old 10-05-2012, 11:21 AM   #65
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I agree with Aftermath. I'm pretty compulsive about calculating mileage, but wonder when friend's quote crazy numbers for their cars if they're actually doing the figuring or just kind of "sensing" how many miles, roughly, per gallon. A friend with a Pilot said he gets 30 mpg.... which I found hard to believe. In my 2012 Pilot 4WD, I actually averaged 30.1 mpg (based on the onboard computer, which I've checked against my own calcs, it's pretty accurate) on highway 80, 78 miles, from Oakland to Sacramento, 60mph... and drafting a semi. I don't think I'd try that towing, but it was interesting to see how much of a change reducing a head wind had. The return trip, at 65 or so, no drafting was 25.4. I think too, that the smaller TV doesn't get much better mileage than the bigger trucks towing because it has to work harder to do it. We'll see what she does on the trip to Jackson next weekend.
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Old 10-05-2012, 11:22 AM   #66
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Oops, that's not to say the calcs here are in error or inaccurate...
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Old 10-05-2012, 12:43 PM   #67
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Originally Posted by Globie64 View Post
I agree with Aftermath. I'm pretty compulsive about calculating mileage, but wonder when friend's quote crazy numbers for their cars if they're actually doing the figuring or just kind of "sensing" how many miles, roughly, per gallon. A friend with a Pilot said he gets 30 mpg.... which I found hard to believe. In my 2012 Pilot 4WD, I actually averaged 30.1 mpg (based on the onboard computer, which I've checked against my own calcs, it's pretty accurate) on highway 80, 78 miles, from Oakland to Sacramento, 60mph... and drafting a semi. I don't think I'd try that towing, but it was interesting to see how much of a change reducing a head wind had. The return trip, at 65 or so, no drafting was 25.4. I think too, that the smaller TV doesn't get much better mileage than the bigger trucks towing because it has to work harder to do it. We'll see what she does on the trip to Jackson next weekend.
Lots of times I quote amazingly high numbers just to get a reaction from people. There are many people who feel their gas mileage is a measure of their manhood. (just for equal representation you may make that personhood if you wish) The interesting part is some do that by quoting high numbers to prove themselves better at solving problems, managing things, and having concern about the environment. There are others who quote very low numbers to show their independence from such silly concerns.

So as long as fuel mileage is used a measure of a man's worth, you will never get a straight answer.

Ken
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Old 10-05-2012, 12:44 PM   #68
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Towing a 2012 30' Flying Cloud, full/wet (est. 10,000 lb.) with a 2010 F250 Crew Cab short bed 6.4l Diesel = 8-9 mpg hand calculated on flats of Michigan/Indiana. I'm sure mountains would reduce it to near zero!

Admittedly, my truck has a cap, a front bumper/winch, and slightly more aggressive tires than I would use if I were trying to improve my mileage. The Airstream is my hunting camp, and I pay for it at the pump every 200 miles.

I'm disappointed in the mileage of the diesel, but it sure has no problem pulling a heavy load (1750 RPM at 70 mph towing).
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Old 10-06-2012, 05:33 AM   #69
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15-cpm solo, and 25-cpm towing ($4/gl diesel)

This is consistent with almost a dozen others using pre-2008 3rd Gen CTD's and 28' -34' aluminum aero trailers (7k to 11k); under 65-mph.

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Old 10-06-2012, 09:28 AM   #70
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We have towed a 30' Flying Cloud with

2011 Ford F150 Ecoboost - 9.5MPG
2012 Ford F250 Diesel 6.7 - 14.00 MPG
I am surprised at the Ecoboost mileage. I have the pre-ecoboost economy 3V V8 and get about 12 mpg overall with the same tranny only a 3.55 axle. Perhaps it is the trailer difference.
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