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Old 06-27-2012, 01:17 AM   #6 (permalink)
2000mc
herp derp Apprentice
 
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,049

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
90 day: 13.74 mpg (US)
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Quote:
Originally Posted by Fat Charlie View Post
For example (and pulling numbers randomly out of my ass here) say I was gliding at 0.4 gph and hit the AC which brought me up to 0.8 gph. The compressor then added 0.4 gph to what I was already using anyway. Under load at 4.0 gph the AC only brought me up to 4.2 gph. So while gliding the AC costs me 0.4 gph but under load it only costs me 0.2 gph.
did you do this while maintaining the throttle position, or cruising at a steady speed?

just thinking, if you were holding the throttle steady while accelerating, when you turned on the a/c you may not be able to perceive the car accelerating at a slightly slower rate.
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