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.
Ski roof rack fuel efficiency.
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.
For comparison the additional fuel consumption caused by roof racks is about six times larger than anticipated fuel savings from fuel cell vehicles and 40 percent of anticipated fuel savings.
The best ski snowboard roof racks for 2020.
Do ski racks and roof boxes hurt fuel efficiency.
Mileage went from 41 mpg at 65 mph to 40 mpg.
Yes roof boxes and ski racks really do cut mpg.
Yes more than you think.
Ski snowboard roof rack reviews 1 thule pull top ski and snowboard carrier 2 yakima fatcat locking ski and snowboard rack 3 thule snowpack roof mounted ski and snowboard carrier 4 inno racks gravity snow rack 5 tms j bar ski and snowboard rack.
Adding any rooftop carrier cargo box or ski rack to your car significantly cuts your highway mileage all the time it.