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Old 09-09-2012, 07:04 PM   #29
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1964 19' Globetrotter
The Sea Ranch , California
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I've been pretty careful too, watching the instant mileage thing and trying to up the average by feathering the pedal, optimizing whatever momentum I can. It was great on the freeway (55-60, 55 is the limit in CA for towing a trailer), less on the twisty and hilly two lane highway nearer home and when I dragged the trailer over Centennial drive behind UC Berkeley, the mpg plummeted.

Wherever you go, there you are
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Old 09-09-2012, 07:22 PM   #30
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2006 25' Safari
St. Augustine , Florida
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I drove from Fort Myers to St. Augustine and back and also from Tampa as longer trips so far with just a few months under my belt. The best I have gotten based on fill-ups and calculation (not onboard computer) was 14 mpg at 60 mph and no wind to speak of. The worst I have gotten is 8.9 mpg with a powerful head wind from Tropical Storm Debbie coming home from St Aug. I have noted that it seems to be 12-14 mpg on the computer unless there is wind and it drops to about 11 mpg. I have a 2009 F-150 4dr 4.6L 3V with the 6 speed transmission.

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Old 09-09-2012, 08:13 PM   #31
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This is all very surprising info! Its lookin like the diesels are gettin similar to the gassers which kinda makes me not wanna get a diesel anymore lol. Especially for the price of diesel compared to gas...
No Airstream Yet...
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Old 09-09-2012, 08:22 PM   #32
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2011 20' Flying Cloud
Beaumont , Texas
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20' FC and 2003 Dodge diesel, manual trans. The TV has 260000 mi.
From Texas to Glacier Nat Park and on the way back, we are averaging for the total miles 17.7 mi/gal (this is very accurate number). We drove 5600 mi so far and 20 % of it is without trailer. Good numbers for us, we are spending just a little more money for diesel compared to staying home.
On the other hand I agree I could get this with some other vehicle so next buy of TV will be a tough choice. I like the 600 ftlb torque on the stick shift.
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Old 09-09-2012, 08:42 PM   #33
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2005 25' Safari
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1998 19' "B" Van Airstream 190
Athens , Georgia
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We took a trip last fall from North Georgia to Bangor, Maine and back, on the whole trip we averaged 11.8 MPG. Our camper is a 2005 25' Safari pulled with a 2010 GMC 2500, big V-8 , I thought that's not so bad because around here working I only get about 13-14 MPG with out a trailer. I am glad I didn't get the diesel since it was about ten grand more at the time and diesel fuel was on the rise
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Old 09-09-2012, 08:42 PM   #34
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2014 20' Flying Cloud
Kooskia , Idaho
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TV: 2012 Jeep Grand Cherokee Overland, 5.7 hemi V8, 5200#

Trailer: 1974 Argosy 20' Total weight 4200 #

I tow a lot, keep full records. 13.5 mpg towing, mountain west, high altitudes, lots of long passes. Normal speed limits of 60, rarely over 70 other than on limited interstate towing.

Recent 850 mile trip, all interstates, 70 mph all the time, 22' Argosy, empty of belongings so probably 4000#: Exactly 13 mpg.

Solo: (not driven that way much, but return trip from Wyoming: 21 mpg
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Old 09-09-2012, 09:06 PM   #35
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13.8 indicated / 14.2 actual: on diesel holding 55-62 mph.
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Old 09-09-2012, 09:07 PM   #36
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1966 24' Tradewind
1995 34' Excella
Lynchburg , Virginia
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TV: 2008 Tundra, 2wd, 5.7L, 4.3 rear end, 6 speed, Leer Cap

Trailer: 1966 Tradewind 24 ft, under 5,000 lbs loaded.

Towing mileage over the last 2 years has been 13.5 mpg. I drive gently and usually only about 60 mph, but sometimes 65 mph on interstates. On one trip down the Blue Ridge Parkway (and back) I got 14 mpg! Go figure. Guess it was the 45 mph speed limit.

Tundra mileage solo is 14 mpg in town and 18-19 mpg on the road. Very nice and comfortable tow vehicle but it is HUGE. SR5 model is very well equipped and only cost 25k out the door in 2008 (5k rebate helped).

I used to tow my 1984 Excella 31 ft with a 93 5.7L Chev Van (very underpowered and underbraked) and I got 10 mpg driving gently (and scared).

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Old 09-09-2012, 09:25 PM   #37
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Hinckley , Ohio
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TV: 2012 Jeep Grand Cherokee Larado, V6,

Trailer: 2011 Safari Flying Cloud 20' 5000#

14.7 high
14.3 low

All interstate at 65-70 mph. I havn't done any hills yet and this combo could be a dog on a long climb.
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Old 09-09-2012, 09:31 PM   #38
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1995 34' Excella
Corinth , Mississippi
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The best that I ever got for a full tank of fuel was 14.7 however I average about 13 overall pulling a 34'ft weighing 10300 pounds loaded. My truck weighs 8240 pounds so i count myself blessed indeed to average 13 mpg overall while pulling at 65-70 mph and weighing well over 18,000 pounds.
Why settle for anything less?
1995 34ft Classic Excella 1000
2012 Kings Ranch F-250 FX-4, 6.7 diesel, 6 speed auto trans.
TAC # MS-8
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Old 09-10-2012, 04:45 AM   #39
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2010 28' International
Richmond Hill , Georgia
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Originally Posted by BAB
Towing a 2012 28' Intl CCD with a 2012 Infinity QX56 (400 HP, 440 lbs of torque)....up through the Smokies today = 11.5 MPG.. This is 475 miles from central NC to Frankfort, KY. While much of the speed limit is at 70 MPH....and I am towing with a PP 3P, I still hold it at between 60-62 MPH.
Wow, identical mileage with our 2012 QX pulling a 2010 28' International and keeping same speeds. Solo it's getting ~19. Would rather pull with the Dodge 5.9 Cummings (15mpg at same speeds) but the QX is so much more comfortable running around in at the destinations. Premium fuel prices almost as bad as diesel
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Old 09-10-2012, 05:22 AM   #40
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2005 28' Safari
saline , Michigan
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Originally Posted by dkottum
Brian, that's interesting because it supports the idea that weight has little to do with effort needed to pull the trailer, is mostly about wind resistance (except during hill climbing). Of course those who have done bicycling are aware of that.

Similarly when we went up 1300# from a 20' Airstream to a 25' the difference was hardly noticeable in driving or fuel usage.

doug k
Indeed, which explains why I get better mileage with my 28' Safari than my previous ultra light 18' . Recent trip to Tetons from Michigan average 12 in my 2011 Silverado 5.3 , 3.42, 6 speed trans, 1/2 ton. Worst was coming home (downhill) with 25mph headwinds. Wind is the biggest factor overall IMHO.
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Old 09-10-2012, 06:50 AM   #41
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1993 34' Excella
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Estancia , New Mexico
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A gauge gizmo I put in that helps a bit on a gasser is a vaccum guage. You could also put in a fuel efficiency guage which does the same thing for a lot more scratch. Helps you drive so you suck up last gas. My next door neighbor car parts dealer told me about it.

He also told me to keep my 99 F250 as long as possible. Better than the new trucks. Shooting for 250,000 m.

Also because of emissions changes, yes, the mpg advantage of diesels is just not there with the new diesels.
Sail on silver girl. Sail on by. Your time has come to shine.
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Old 09-10-2012, 08:06 AM   #42
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2001 25' Safari
London , Ontario
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We're averaging just under 12MPG towing with our V6 Traverse, about 1MPG better than our old 2001 V8 Yukon. But the real advantage is the improved mileage when not towing, which went from about 14MPG combined to around 18 or so.

Gary & Debbie
2001 Safari 25 SS
2011 Chevy Traverse 3.6L AWD Hensley DirecLink McKesh
Set-up by Can-Am RV
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