Roof Pod Fuel Economy

Their study was published recently in the journal energy policy in a paper titled fuel consumption impacts of auto roof racks.

Roof pod fuel economy.

Their study was published recently in the. Off the showroom floor the regal tourx gets 21 miles per gallon in the city and 29 mpg highway for a combined fuel economy of 24 mpg. They found that in 2015 roof racks nationwide were responsible for 0 8 percent of light duty vehicle fuel consumption or 100 million gallons of gasoline. Mileage went from 41 mpg at 65 mph to 40 mpg.

If you follow our coverage on fuel efficiency you know that real world mileage numbers don t always measure up to the official epa ratings. A control test was first completed with the roof of a petrol powered natural aspirated subaru forester unburdened by any racks or cargo only the factory installed roof rails remained. Mileage went from 41 mpg at 65 mph to 40 mpg. The empty roof rack had a nearly 2 percent impact on fuel economy which translates to a little more than three quarters of a gallon of gas.

That 100km run chewed up 6 46 litres of petrol and was our baseline number. He found that compared to the baseline of no roof rack the empty rack reduced his mpg by 12 7 and the roof rack with a bicycle reduced it by a whooping 27 3. Bengt halvorson april 15 2015 comment now. The roof rack mpg experiment he compared the gas mileage of his car at 54 7 mph 88 kph with 1 no roof racks 2 an empty roof rack and 3 a mountain bike on the roof rack.

Adding a roof box means your car has to carve a bigger hole in the air which requires burning more fuel so your mpg will suffer. But if you. It s impossible to give an exact figure because it depends on so many factors but britain s biggest roof box manufacturer thule states that your mpg is unlikely to decrease by more than 5. The control test the tourx without roof rails.