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Old 09-10-2012, 09:46 AM   #43
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Yup, headwinds kill mileage. Worst ever was 10.8 into the Santa Anna wind. Best ever, 17.3. If I'm not climbing above 10k' I can average 15-16.5 with our '06 Honda Ridgeline. We tow at 60-65. The Ridge seems to feel comfortable at 64.
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Old 09-10-2012, 09:53 AM   #44
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Looks like the best mileage was from a Dodge with a Cummins, followed closely by a Mercedes with a diesel!

Its lookin like almost no matter what you tow with, you can expect between 10 and 14...
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Old 09-10-2012, 10:27 AM   #45
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2008 Grand Cherokee 3.0 Bluetec Diesel, full time 4WD, 376 ft lbs torque.
Avg non-towing 25 mpg.
23' Flying Cloud FB. 5673 lbs loaded.
Towing range 13 to 18 mpg. Best 18 mpg at 60 on Hwy 50 across Nevada.
Worst 13 mpg at 60 across Oklahoma on I-40 with headwinds and temp > 100.
The CRD likes altitude and cool temps.
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Old 09-10-2012, 10:56 AM   #46
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At 58 mph, no hills or wind I got 15 mpg towing with my '99 F250 7.3 diesel. Same 25' Airstream trailer with '11 Tundra under same conditions was 12 mpg. My current 24' class C motorhome w/ Ford V10 gives about 10 mpg under these optimum conditions.

Real world numbers were worse because this scenario is rare. But the minute you put in braking, curves, mountains or wind it is pretty hard to get an apples to apples comparison.
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Old 09-10-2012, 11:24 AM   #47
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Towing a 2011 28' International with our 3.5 litre V6 Toyota Sienna, we averaged over the 2012 camping season 12.8mpg (US). Most terrain was pretty flat and we tend to do around 60-65mph. Our best ever was 14.9 on flat terrain with no headwind doing around 50mph. Our worst was 10.1 on a wet and windy day on our way back from the Finger Lakes in NY.

Our real advantage is the average 28.4mpg when not towing :~)
UKT, I just read this post on another RV forum

Quote... "We have a 2006 Toyota Sienna towing a 2012 Scamp Deluxe with A/C. I drive 55-60 mph. Average fuel economy is 15 mpg over lots of different terrain. Best was 16.5 mpg totally flat (FL) driving 55 mph. Normally I average 19 in the city (ALL city with lots of lights) and 24 on the highway at 70 mph. Where it's flat I stay in 5th gear but through hilly terrain I drop to 4th to avoid the transmission hunting." __________________
2006 Toyota Sienna XLE

The lady is towing a 2,000lb fiberglass egg trailer. Goes to show how well the Airstreams tow.
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Old 09-10-2012, 11:44 AM   #48
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I wonder how many mpg would be subtracted due to the higher cost of diesel fuel compared to gas, to more closely compare fuel cost. I thinking 3 mpg as an average?

doug k
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Old 09-10-2012, 12:09 PM   #49
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We tow a 16' 3500 lb Bambi with a 2011 crew cab Toyota Tacoma. We get around 15 mpg if we keep our speed at or under around 60 mph.

Most of our driving is in mountainous terrain.

But-- with a smaller truck which is our general all-purpose vehicle, we get around 22 mpg the rest of the time.
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Old 09-10-2012, 12:10 PM   #50
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I tow a 25' 2001 Safari (5M LBS.) with a 2003 Dodge 2500 Cummins Diesel. Get 17 MPG in the south and east of Texas, running 60 MPH.

Just bought a 31' Classic (7M LBs.) and towed it from Atlanta Ga to East Texas with cruise set on 70. Got 13 MPG but started trip by getting lost in Atlanta and driving about 1 hour in stop and go traffic before getting back to Interstate 20.
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Old 09-10-2012, 01:52 PM   #51
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With current tow vehicle, 16 towing, 16 around town not towing and 20 interstate not towing. Last truck was half ton Chevy, 5.3? Liter, 11 towing and 16 to 20 around town and interstate. Jim
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Old 09-10-2012, 02:11 PM   #52
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UKT, I just read this post on another RV forum

Quote... "We have a 2006 Toyota Sienna towing a 2012 Scamp Deluxe with A/C. I drive 55-60 mph. Average fuel economy is 15 mpg over lots of different terrain. Best was 16.5 mpg totally flat (FL) driving 55 mph. Normally I average 19 in the city (ALL city with lots of lights) and 24 on the highway at 70 mph. Where it's flat I stay in 5th gear but through hilly terrain I drop to 4th to avoid the transmission hunting." __________________
2006 Toyota Sienna XLE

The lady is towing a 2,000lb fiberglass egg trailer. Goes to show how well the Airstreams tow.
I never doubted it
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Old 09-11-2012, 08:06 AM   #53
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I think the fuel is the cheap part. A years fuel cost are a couple of thousand dollars. Why would you spead 20 or 30K to get a couple of MPG more. It make no sence to me. My friend has a hybrid that cost him 20K more than a equal size gas car to save maybe $1000 in fuel.
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Old 09-11-2012, 09:00 AM   #54
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Id save $1000 in fuel (per year) if I got a truck that got 7 mpg more lol. Iv done LOTS of research the past few days lol.

But I see where your goin. Buying a Volt that costs $40,000+ vs a VW Jetta TDI at $28,000 fully loaded and still gets 4 mpg better... no brainer...

My biggest fuel cost is daily driving. My truck gets 11 unloaded, 9.5-10 towing. Im not gonna deny, I was very surprised to see my mpg only drop by 1 mpg towing a huge camper but its still eating me lol.
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Old 09-11-2012, 09:02 AM   #55
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Average MPG

I tow with a 2002 Toyota Sequoia. Not towing we get around 15 MPG. When fully loaded for a big trip our combo weighs around 13,000lbs. I usually drive 70 on the Interstates when limits allow and the posted limit (conditions allowing) everywhere else. On our most recent trip to Colorado, Utah, Arizona and New Mexico we logged 3,422 miles towing and averaged 9.12 MPG.
Better towing economy would be nice, but the Sequoia is paid for and is a great tow vehicle for a family of five in my opinion.
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Old 09-11-2012, 09:08 AM   #56
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Thats a good reason to keep it lol
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