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Old 02-13-2012, 09:22 AM   #1
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Mileage with Toad

I just purchased a 2011 29' Montclair with a V10 engine. Now i need to buy a toad. I am looking at one toad that is about 2500 lbs and another about 3500 lbs. My question is, what would the estimate mileage hit be to tow that extra 1000 lbs? Any opinions would be helpful. Thanks.
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Old 02-13-2012, 09:44 AM   #2
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Very minimal, if any depending on towing conditions. If you tow in mountainous areas you could see as much as 1.0 mpg drop when towing as opposed to not towing. On flat terrain the difference is maybe .2 mpg.
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Old 02-13-2012, 10:01 AM   #3
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Very minimal, if any depending on towing conditions. If you tow in mountainous areas you could see as much as 1.0 mpg drop when towing as opposed to not towing. On flat terrain the difference is maybe .2 mpg.
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Old 02-13-2012, 12:48 PM   #4
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I have a F150 that we tow and its over 4,000 lb. It lowers our mileage about 1.5 or 2 MPG depending on where we are.
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Old 02-13-2012, 01:13 PM   #5
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For some, choosing a toad is more about how you will use it.... My need is for 4-wheel drive, towing 4 down, so mileage/weight is not a real important criteria.
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Old 02-13-2012, 01:35 PM   #6
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Most of my experience has been pulling from 1 to 4 motorcycles on trailers. The single rail trailer and 1 bike combo weighed 1250 lbs. The 4 bikes on a large flat trailer weighed 3500 or so lbs.

I kept consistent fuel records over 7 years. My rig was a 36' Airstream MH on a Chevy P30 chassis with a 454 engine, including a complete banks power system, and I always drove at 62 - 63 mph. With no trailer, and just a scooter on the back bumper, I could get a consistent 9.8 - 10.2 mpg. With the 1 motorcycle set up, I would get 9.3 - 9.6 mpg, and when I increased the tow load up to the full 4 bikes, my mpg range was 7.8 - 8.3 mpg.

Weight does make a big difference on the gas units, at least the older ones. I also pulled 1 bike in an enclosed trailer, total weight was around 2500 lbs, but the mpg as bad as pulling 4 bikes on an open flat trailer. I think the wind resistance went way up with the bigger trailer body.
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Old 02-13-2012, 02:24 PM   #7
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Except when going uphill or accelerating from a dead stop, the only thing more weight does is increase the rolling resistance of the tires a tiny amount.

You will likely notice some decrease in mpg when towing with a gas chassis coach, but I doubt if you would even be able to discern much difference between a 2500 lb toad and a 3500 lb toad. The heavier toad probably has larger tires and that may make a bit of difference, but the weight isn't much of a factor.

A toad with big tires or aggressively threaded tires, e.g. a offroad pick-up truck, will have a marked effect on mpg, but small sedans or even smaller SUVs don't have much effect.

Wind resistance is a major factor in motorhome mpg, and both coach and toad contribute to it.
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Old 02-13-2012, 04:34 PM   #8
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My question is how many fewer MPG would i get by buying a toad that is 1,000 lbs heavier. ie, would i get .5 mpg, 1mpg, 1.5mpg less by adding the addition weight of the toad.
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Old 02-13-2012, 04:58 PM   #9
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Less than .5.





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Old 02-13-2012, 09:32 PM   #10
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A few years bak, a friend had an F-350 truck with a big slide-in camper. I think it was either a 390 or a 460 motor. He routinely got about 7 mpg. When he towed a sailing dinghy and trailer, his gas mileage went up to 8.5 or so.

An aerodynamicist friend at Boeing figured out that the truck and camper suffered from "bluff body drag", basically from the flat, vertical rear end of the rig. His hypothesis was the the boat and trailer broke up the big vacuum bubble behind the bluff body and actually improved the drag coefficient.

It might be that a small, light toad would do the same. There would obviously be a trade-off beetween drag reduction and the extra weight, but I'm not smart enough to figure that one out!
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Old 02-13-2012, 09:49 PM   #11
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I really don't know as we tow almost every time we go, even if just for the weekend. Although sometimes I drive one way and my wife meets me later with the toad as I don't work Fridays and she does. Then I tow the toad back.

According to a Cummins publication it takes 144,000 miles to establish accurate mileage figures. I don't think I'll live long enough!
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Old 02-13-2012, 09:57 PM   #12
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Quote:
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Less than .5.





Mike
X2...

Less than .5 that is... not .5 x 2 = 1
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Old 02-13-2012, 10:07 PM   #13
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I tow a 2,000 lb Miata and a 4,000lb Lexus. I can tell a slight difference as far as power is concerned but I have no idea if there is any difference in the MPG.
We normally take the Lexus because it is so much more comfortable to drive around once we get where we are going.
I prefer to tow the Miata because I don't hardly know it's back there.

Now, for a bit of advice. Don't worry about mpg. I can fill my motorhome and NOT be able to tell you what that tank full just cost. I block it out of my mind. If you are going to nickel and dime yourself on gas you'll tend to not travel as much.

Buy the car that you like the best and be done with it.
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Old 02-17-2012, 09:07 AM   #14
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Once again I am baffled at the things that folks use to make a decision on. If 1mpg one way or the other will affect what you buy you're in the wrong game. If you drive 10k miles a year, which is a LOT, you may spend an extra $500. If $500 a year is the breaking point I doubt an RV is for you. And the actual cost for MOST RV'ers is probably closer to $250 a year and that's not even considering the cost of the toad. Buy the toad you want and enjoy it without wishing you had bought the other.
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