The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

Longhorn Man · 06-08-2003, 12:22 PM

Actually, the EPA has done tests (with newer more aerodynamic vehicles) and say that you'll get better MPG on the free way with the A/C on instead of having the windows down. The windows really upset the air flow.

06-08-2003, 12:22 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Actually, the EPA has done tests (with newer more aerodynamic vehicles) and say that you'll get better MPG on the free way with the A/C on instead of having the windows down. The windows really upset the air flow.