Quote:
Originally Posted by Jeff_DML
I drive around a lot with a bike attached to a tow hitch. Amazing how much of a gas mileage hit it takes when driving on the freeway, probably 4-5 mpg. Bike on the back of our 4runner brick doesn't seem to effect it all but I guess not surprising though.
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The roof rack (even empty) will make fuel economy take a pretty decent hit on the hwy for sure. Things behind the vehicle are much easier on fuel economy.