The increase in fuel economy was about 1.9%. They found a 5% decrease in drag and air resistance. The result was not sufficient but measurable. Then they tested the vehicles with bed covers against wind tunnels. They tested the vehicles against wind tunnels without bed coverS to measure the value. They aimed to measure the reduction in fuel consumption by using bed covers. They tested truck bed covers with different materials, sizes, and styles. Specialty equipment market association(SEMA) experimented on a different pickup with 13-bed covers. Here is a brief description of these studies. Different studies related to truck bed covers and mileageĮxperts conducted many experiments to prove that using truck bed cover can increase mileage. It will not only increase the mileage but also increase its speed. When the bed is empty, the moving air will create more air pockets that increase the air’s resistance.īed covers will give the vehicle a uniform block surface that does not entrap any air. More fuel is required to overcome that resistance. Without a cover, the air will glide away from the cab top hence, air offers more drag to the moving vehicle. It will increase the fuel efficiency to approximately 2%. On average, a simple tonneau cover decreases the drag by 5% to 7%. The engine will work more efficiently in a low quantity of fuel. Lesser drag means less pressure on the engine. The covers can decrease the resistance by allowing the air to pass smoothly on the vehicle’s top. It gives it a more streamlined body to reduce air resistance to moving vehicles. Its broad and flat face will face more drag and resistance than small vehicles. The design of a pickup is contrary to aerodynamics laws. Truck bed covers increase gas mileage by decreasing the drag and minimize air pockets present at the empty truck bed. A hardcover does not show an appreciatable result and increases mileage by 7% to 10%. The percentage by which bed covers increase mileage depends on the size, material, and cover style.Ī soft bed cover can increase the mileage up to 10% to 12%. On average, a tonneau cover increases mileage ranging from 3% to 25%. The drivers have recorded a per gallon increase in fuel economy by adding truck bed covers. Lowering the tailgate will increase the mileage to some extent. A simple pickup without any bed overs gives mileage as specified by manufacturers. Truck bed covers increase mileage by reducing drag and air resistance. Each vehicle has its specific bed covers. It is present in different styles and sizes. It also protects the bed and load present in it. It is also called a tonneau cover and protects the bed of the truck from external elements.
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