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Re: AC on in the summer
Posted by Jeremy R. [Email] (more from Jeremy R.) on Fri, 4 Aug 2006 15:03:06
In Reply to: AC on in the summer, Will, Fri, 4 Aug 2006 14:42:20
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Yes, it kills mileage. I'd guess that it's at least a 3 MPG drop. It's a huge load on the engine and saps an enormous amount of power compared to anything else. I've heard that it's more fuel efficient to use A/C than to drive at freeway speeds with the windows down, though, because of the increased aerodynamic drag that lowering the windows produces. There's no difference between the speeds. The A/C compressor can only be on or off, no inbetween. All you're controlling with 1 - 4 is the little electric fan behind the dashboard, and that puts a negligible load on the alternator and battery.
posted by 71.39....
Posts in this Thread:
- AC on in the summer, Will, Fri, 4 Aug 2006 14:42:20
- Windows down? How about top down ?, dudewithasaab, Tue, 8 Aug 2006 20:08:34
- 30 MPG with A/C on in 85F weather with 1998 900SET...., REM in Seattle, Mon, 7 Aug 2006 20:49:03
- Do what feels good., Dale, Mon, 7 Aug 2006 13:01:17
- Really not a practical matter, Noel, Mon, 7 Aug 2006 06:32:04
- if you can't afford the AC..., jeff in MD, Sat, 5 Aug 2006 21:27:41
- how about this....., Smartin, Sat, 5 Aug 2006 12:10:00
- Re: AC on in the summer, Jeremy R., Fri, 4 Aug 2006 15:03:06 <-- Viewing This Message
- Wrong on all counts...., Mike Lynch
, Fri, 4 Aug 2006 15:41:37- Re: NOT wrong on all counts...., JimBlake
, Sat, 5 Aug 2006 19:01:57 - Re: Wrong on all counts...., dmz789aa, Sat, 5 Aug 2006 08:14:05
- I gotta disagree (long)..., Eric Law, Sat, 5 Aug 2006 07:35:59
- Expedition maybe (+), vvk, Fri, 4 Aug 2006 18:05:31
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