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How much will my RV's mileage increase with a lighter toad vehicle

by Robert Richards
(Waveland, MS)


I have a 2008 Gulfstream Endura with a Chevy diesel engine. I tow a Dodge Dakota truck which weighs approx. 3355 pounds. We love towing this vehicle, but with the high cost of diesel, I am considering trading for a lighter vehicle.

Does anyone know a way to evaluate the increased fuel mileage with a lighter vehicle?

Thanks,
RR


ANSWER: Hi Robert thanks for submitting your question on our Ask An RV Question Page.

I am afraid that I do not have a mathematical formula for you. Maybe one of our visitors can provide one for you. but I will tell you that lightening your towing load will indeed increase your fuel mileage. That's the good news.

The bad news is that the increased MPG your motorhome will get will be negligible at best. Depending on what length your Gulfstream Endura is the gross weight of RV is going to be around 26,000 pounds. So as you can see reducing the Toad weight is going to have minimal effect on overall weight and MPG.

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Since you seem to like your Dodge Dakota so much I would say keep towing it. If you want to increase your RV's MPG read my suggestions below:

1. Make sure that your motorhome is properly maintained so that it runs as efficiently as it can.

2. Make sure that your RV's and Toad' tires are properly inflated, properly inflated tires increases fuel mileage.

3. Dump your Black and Grey Water holding tanks before you hit the road. Even if these tanks are only partially full they increase the RV's Weight.

4. If you are planning on staying at an RV Park or Resort that has water and you are not planning on doing any boondocking; I would suggest that you not fill up your Fresh Water Holding Tank. Just add enough water to the tank to get you to where you are going. A gallon of water weighs approximately 8.35 pounds. Again depending on your model motorhome you could have an 85 gallon fresh water tank which weighs around 712 pounds when filled with water.

All that being said; if you go to a lighter more fuel efficient Toad you will see a more significant increased fuel mileage in the Toad itself.

Hope this helps.

Happy RVing

RVing Al

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