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      08-14-2018, 06:55 PM   #8
wyatth
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Drives: E90 ZCP
Join Date: Dec 2007
Location: Bay Area

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Regular use (once per month to a few times per year?) immediately followed by non-AC vent air flow before powering down is the best way to extend the life of the HVAC system. But that's not really the question here.
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