986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - How much more gas does it cosume when you have your AC on and top off?

der Geist · 08-24-2006, 06:35 PM

I don't know what the exact figures are but I think that it would be a little more than the 2.79 but that is probably a damn good average. My personal feeling is that it is a little more but most of my milage is stop and go city driving. Interesting note-There was an episode of the Mythbusters wher they drove an SUV around the track with the windows down/air off and then again with the windows up/air on. Surprisingly the SUV got slightly better milage with the air on and the windows up. Mostly due to drag from the windows beingdown. And I always thought I was saving on gas by sweltering!

08-24-2006, 06:35 PM	#5
der Geist Registered User Join Date: Mar 2006 Location: Lakewood, Ohio / Sedona, AZ Posts: 305	I don't know what the exact figures are but I think that it would be a little more than the 2.79 but that is probably a damn good average. My personal feeling is that it is a little more but most of my milage is stop and go city driving. Interesting note-There was an episode of the Mythbusters wher they drove an SUV around the track with the windows down/air off and then again with the windows up/air on. Surprisingly the SUV got slightly better milage with the air on and the windows up. Mostly due to drag from the windows beingdown. And I always thought I was saving on gas by sweltering! __________________ http://www.martinlansky.com/Coppermi...01/W_humps.jpg '03 Midnight Blue 18" Chromes//Drilled and slotted rotors//pedal upgrade//Alum. Door sills//KSPORT Coilovers//Short Shifter/Strut braces/Clear sides/Hard Top/Speedster humps/Intake//Leather GT3 seats/REVO chip with SPS2 '04 CLK55 AMG 367HP! '86 944 Guards Red & MINT! '69 911 Black PCA Member -Northern Ohio Cancer Survivor