Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - mods-data-%change Cd or drag(installment#3 surface drag)

Mr. Cheap · 06-03-2008, 06:41 PM

Would a car have more drag if it's dirty? I don't know that much about aerodynamics, but the original post suggests to me that it might. My very informal observations suggest that washing may improve mileage.

06-03-2008, 06:41 PM	#6 (permalink)
Mr. Cheap EcoModding Lurker Join Date: May 2008 Location: Central New Mexico Posts: 18 Bun - '02 Ford Focus ZTS 90 day: 31.3 mpg (US) Thanks: 0 Thanked 0 Times in 0 Posts	Would a car have more drag if it's dirty? I don't know that much about aerodynamics, but the original post suggests to me that it might. My very informal observations suggest that washing may improve mileage.