Tested: How Much Do Roof Racks Affect Fuel Economy?
How much do roof racks/bike carrier affect fuel efficiency?
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Does A Roof Rack Affect A Car's Perfomance? | Calgary Hitch Shop
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Fuel consumption impacts of auto roof racks - ScienceDirect
Yes, Roof Boxes And Ski Racks Really Do Cut MPG—More Than You Might Think
6. Increase in fuel consumption because of laden roof box (influence on... | Download Scientific Diagram
Tested: How Much Do Roof Racks Affect Fuel Economy?
How Adventure Gear Strapped to Your Roof Affects Gas Mileage -- Do Roof Racks Hurt MPG?
23: Increase in fuel consumption for various speeds for a laden roof... | Download Table
New Study Finds That Roof Racks Are a Real Drag on U.S. Fuel Consumption - Scientific American Blog Network
PDF) Fuel consumption impacts of auto roof racks
Blog Post | Ditch that Roof Rack and See Your Fuel Economy Soar | Car Talk