Aerodynamics is the study of force and how an object moves through the air.
Fuel economy of roof rack vs luggage box.
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.
42 mpg roof rack with thule dynamic 800 aerodynamic cargo box.
This includes a roof rack bike rack luggage rack pair of bikes or anything else you may strap to your vehicle.
I have personally tried both options on two different vehicles and i can say positively a cargo box gives you more mpg s.
Adding any rooftop carrier cargo box or ski rack doesn t come free.
Mileage went from 41 mpg at 65 mph to 40 mpg.
5 6 l 100 km approx.
The more aerodynamic a car is the better the gas mileage it will have.
6 0 l 100 km approx.
Is a fancy low profile ski rack the answer or could a cargo box get me better fuel economy.
On my maxima i was able to get 25mpg with no rack at all when i added a yakima fat cat 6 loaded with skis i got approx 20mpg.
5 9 l 100 km approx.