Mpg Fuel Economy Roof Rack

This is because diesel fuel motorhomes get better gas mileage than gas ones do.

Mpg fuel economy roof rack.

The gear with the most impact were the dual mountain bikes strapped to the roof which impacted the fuel economy by 31 percent or 9 mpg. 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. So if your car usually gets 30 mpg on the highway and you add a full roof rack your highway gas mileage will drop to 24 27 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.

Improve the mpg of your vehicle with our gas mileage tips. A close second was the kayak with 28 percent or a. When just the roof rack was added the car s mileage dropped by almost 11 percent or 5 mpg. Adding a bike to the equation caused fuel consumption to jump by 35 compared to their baseline settings.

Their study was published recently in the. Because of this extra energy efficiency diesel vehicles actually get 20 35 better gas mileage than gasoline fueled vehicles. But with the rack and rooftop carrier installed the overall drop was 19 percent a loss of 9 mpg. 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.

Generally adding a loaded roof rack to your car will lower your gas mileage by at least 10 percent. Some drivers may see their gas mileage drop by as much as 20 percent depending on vehicle type and type of roof rack. When consumer reports tested how roof racks affected fuel economy in 2013 they noticed a 5 mpg drop at highway speeds from an empty rack. Epa gas mileage safety air pollution and greenhouse gas estimates for new and used cars and trucks.

How bad is the hit to your wallet. 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.