Roof Rack Cross Bars Gas Mileage

A drop of 7 percent may not sound like much but it adds up over time.

Roof rack cross bars gas mileage.

They also created an energy inventory model that included rack usage rates vehicle stock vehicle miles traveled through 2040 and vehicle level roof rack fuel consumption penalties. 5 6 l 100 km approx. Agree with everyone here cross bars you will never notice. Using a roof rack and toting bulky equipment on top of your car isn t the only thing affecting your gas mileage however.

6 0 l 100 km approx. On my old tucson i left the crossbars on no difference in fuel consumption. 40 mpg roof mounted thule xtender 739 ski carrier with skis. In fact it significantly cuts your highway mileage all the time it s installed whether there s weight up there or not.

39 mpg thus the cargo box on the roof increased fuel consumption by about 5 compared to the baseline. Let s say that you drive 15 000 miles per year gas is 2 50 gal and your gets 25 mpg. 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. It is designed to fit just about any factory or after market cross bars on any vehicle type with the exception of convertibles.

Even with the sport rack box on the roof it was only a 2 3 mpg hit on the highway. 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. Your fuel cost is ten cents mile or 1 500 year. Adding an empty roof rack to a vehicle can drop the gas mileage by about 7 percent.

A five percent change in fuel economy is worth 75 each year or. 42 mpg roof rack with thule dynamic 800 aerodynamic cargo box. Adding any rooftop carrier cargo box or ski rack doesn t come free. Other modifications you make to your vehicle particularly those to.

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. Drag coefficient increases by speed squared. 5 9 l 100 km approx.