Van Roof Rack Mpg

Roof racks a drag on fuel economy berkeley lab study finds roof racks responsible for almost 1 percent of national fuel consumption.

Van roof rack mpg.

199 cubic feet of cargo space. A close second was the kayak with 28 percent or a. This means that adding an empty roof rack to a car that usually gets 35 mpg will drop the gas mileage to 32 5 mpg. A drop of 7 percent may not sound like much but it adds up over time.

5 9 l 100 km approx. 40 mpg roof mounted thule xtender 739 ski carrier with skis. Adding an empty roof rack to a vehicle can drop the gas mileage by about 7 percent. 42 mpg roof rack with thule dynamic 800 aerodynamic cargo box.

In fact it significantly cuts your highway mileage all the time it s installed whether there s weight up there or not. Service maintenance vans city vans 1. 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. 39 mpg thus the cargo box on the roof increased fuel consumption by about 5 compared to the baseline.

Adding any rooftop carrier cargo box or ski rack doesn t come free. 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. Feature story julie chao 510 486 6491 april 25 2016. One thing to consider is that roof racks add wind noise and make the van less aerodynamic which can reduce gas mileage so keep that in mind.

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. Roof racks a drag on fuel economy by lawrence berkeley national laboratory both loaded and unloaded roof racks create drag reducing your vehicle s efficiency. 5 6 l 100 km approx. With the metris mercedes benz cleans up nicely as far as the service and maintenance van category goes.