MAX A/C -vs- A/C
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Senior User
Joined: Sep 2000
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From: Flat Rock, Michigan
MAX A/C -vs- A/C
What's the difference (other than blower speed) between the A/C setting and the MAX A/C setting? Is one more efficient or fuel thrifty than the other?
What's the best choice to use?
-hooD
What's the best choice to use?
-hooD
Fleet Owner
Joined: Jan 2004
Posts: 26,007
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From: Brentwood,CA
one recirculates the air and one uses fresh air. running on max a/c all the time causes problems because it creates alot of moisture that collects and makes mold on the evaporator.so it is a good idea to switch once in awhile from one to another the freah air will dry out the evaporator.
Posting Guru
Joined: May 2002
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From: Chicago Area
Right, and the blower speed isn't usually any different, it just seems louder because "Max" is being supplied from inside. (Some systems do automatically switch to high speed blower when in max).
It is also somewhat more efficient because it is re-cooling this inside air. Despite that, it is usually recommended to use "A/C" rather than "Max A/C" after the initial cool down. I think any improvement in mileage would be too small to notice.
It is also somewhat more efficient because it is re-cooling this inside air. Despite that, it is usually recommended to use "A/C" rather than "Max A/C" after the initial cool down. I think any improvement in mileage would be too small to notice.
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