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65Hemi's avatar
65Hemi
Explorer
Jul 23, 2017

Gas Mileage While Towing a 20 Foot Travel Trailer

Curious about the expected gas mileage while towing a 20-foot travel trailer weighing about 3,100 pounds with water and propane, towing with a full-sized pickup. My truck is a 2017 GMC Sierra with the...
65Hemi's avatar
65Hemi
Explorer
Jul 24, 2017
Terryallan wrote:
Not so much the weight, as it is the wall you have to pull thru the air

Exactly. Aerodynamics has a lot greater effect than weight on fuel mileage. That's why keeping your speed at or below 60 mph is so important. Wind/air resistance increases at the square of the velocity.

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