Thule Roof Box Fuel Economy

Mileage went from 41 mpg at 65 mph to 40 mpg.

Thule roof box fuel economy.

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. It has a distinctive shape that has been optimized using advanced computer simulation reducing the impact on fuel economy and providing a quiet ride. It has a distinctive shape that has been optimised using advanced computer simulation reducing the impact on fuel economy and providing a quiet ride. 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.

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. Berkeley lab says that roof racks cause as much as a 25 percent loss in fuel economy and accounted for almost 1 percent of national consumption in 2015. 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. Roof rack with thule dynamic 800 aerodynamic cargo box.

6 0 l 100 km 39 mpg thus the cargo box on the roof increased fuel consumption by about 5 compared to the baseline. Adding any roof box increases frontal area of your vehicle of course. The control test the tourx without roof rails. With thule motion xt thule is setting a new standard for modern roof box design with a stylish silent and easy to use box that will make your car look even better.