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Old 11-20-2011, 04:37 PM   #41
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MPG discussions all seem to boil down to ten mpg, with the occassional 7 and 13. I get 10 with my big 7.3 pulling just over 9000# between 55 and 65. Very little difference between those two ranges. My cousin pulled a 3500 pounder with a Honda something or other and got - then mpg. I've spoken to over-the-road truckers and the ones I've spoken to seem to agree. It's the drag, not the weight. They should know. As for diesels, I'm not sure I'd get another these days. The old 7.3s go forever, but I own it, and a new one costs a whole bunch over gas, and with gas $3.28 and diesel $4.00, it really would give me pause.
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Old 11-21-2011, 09:45 AM   #42
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Originally Posted by OnTheGo View Post
We have a Tacoma V6.

I would like to be able to go a little faster, and get a few more MPG.

Thanks.
Go faster get worse fuel economy... fact of life... Trailer tires, ST, are only rated for 60 mph... going faster just begs for more problems...
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Old 11-21-2011, 10:07 AM   #43
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I would like to be able to go a little faster, and get a few more MPG.
I would too, plus win the lottery. As a related (maybe) note, this morning I spotted an article on CNN relating some researchers seem to have measured neutrinos travelling faster than the speed of light. So maybe there's hope for us if some of the lesser laws of physics that affect us can be repealed. Think of it, hauling an 8k# TT down the interstate at 80mph (that's almost 130KPH for those of you north of the border) at 15-18 mpg! That's worthy of a new building at Epcot.
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Old 12-11-2011, 08:08 PM   #44
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I have a 2008 F-250 FX4 with the V10. I was getting 10.2 MPG towing the Jayco 19RD from WA, ID, MT, and down into WY. We did have several mountain passes on the trip. We towed about 70 MPH most of the way except for steep or icy grades.

If I had a much larger TT I think I would have to go to the diesel for pulling power due to the steep mountain grades in this area.
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Old 12-13-2011, 07:46 AM   #45
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on the go-- You might invest in an expensive cap for the bed of the truck. When traveling, the air your pulling against ( drag) is going over your roof, down over the truck bed and smack into the front of the tt. The cap will reduce the frontal area of the tt by quite a bit, you can do some math and figure it out, but you are still stuck with the exposed side area. A full size pu will take care of some of that but probably not worth the cost for just that reason. Larry
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Old 12-13-2011, 10:25 AM   #46
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19H, I've got that cap, pull about 9k pounds worth of TT and get 10 mpg. Our previous rig had an 8' open front deck, so with A frame, the box was about 12 feet behing my truck weighed about 5500# without ATVs up on that deck and about 7000 with them. Got 10 mpg. The biggest factor for me is headwinds or tailwinds.

A cousin has a Honda Ridgeline pulling an Eco TT weighing less than 3000#. This summer he drove the setup from California to New York and back. Got 10 mpg. Seems there's a pattern here.

A few months back there was a fairly long thread about the influences on fuel mileage. I think it was on another forum. Professional truck drivers and many who seemed to take an engineer's approach commented. What I took away from those discussions, backed by my own experience of getting better mileage with heavy but low ceiling loads, was that it's wind resistance that controls. Of course, excessive speed will affect mileage greatly, but if we discount extremes, most of our diesels pulling ten foot plus trailers get about 10. Gas engines it seems to me get 10 or less.

After reading that thread I spoke to a good friend of mine who drove over 2 million over-the-road miles in semis, and he agreed, weight was a factor, but wind resistance was the big mover.

I spoke about this to two caravaning truckers at a diesel stop a month or two ago. I asked if their farings helped a lot. They said the advantage was minimal, but then pointed to the side skirts on their trailers, something I had never noticed. Apparently, these smooth out airflow and do help. All this points to resistance being of paramount importance in the mileage game.

I'd love to hear from owners of Hi-Lo's and compare their mileage to similar,
but taller, weighing trailers.
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Old 12-15-2011, 11:45 AM   #47
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Thats the price you pay for solid walls..... The wind drag of the higher trailer is what is hurting your gas mileage. We currently have a OFF-ROAD POPUP and we consistently get 20-21MPG with our 2010 F150 truck whether we are pulling the POPUP or not. The F150 doesnt know the trailer is back there I guess...

Momabear is wanting to get something with solid sides now and have been looking at the JAYCO X213 trailer. I know this is going to drop my gas mileage back to 10 or 11 MPG if I'm lucky. Not really a whole lot you can do about it. Just drive 50-55 and dont do anything sudden like. Keep the foot out of the gas peddle... Let the kids have the roadways.... You most always pull right up behind the speeders at the next stop light anyway...

For some reason we seem to get our best gas mileage when using Shell gasoline ????
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Old 12-21-2011, 07:46 PM   #48
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I towed a 22 foot skylark with a toyota 4runner V6 4.0, 2010. Am serious when I say that I got around 14.2 miles per gallon towing. I went from Cabot trail in Nova Scotia to the North Carolina border clocking about 10000 miles. The fastest I went was 65. Mileage would go up as I was cruising on flat ground or downhill, and down when I climbed. Was not happy with performance in hills. Ended up getting a dodge 1500. Really worked at trying to keep the eco light on all the time.
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Old 12-22-2011, 07:42 AM   #49
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Some of the newer vehicles do have better fuel efficiency. If I was going to do most of my towing on flat land I don't think I would put the money into a high HP tow vehicle. Out west we do have some steep mountain passes. If I didn't have the 6.8L V10 I think I would go to the diesel. I get 10 mpg and 9 mpg over the mountain passes towing the 19RD.
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