Quote:
Originally Posted by MechEngVT
Which brings up one more point: if you want to be cool but not cold, do not turn up the temperature dial as it merely blends hot air into the conditioned air. Cycle the A/C on/off to make it warmer than the low-blower MAX A/C would normally make it to minimize compressor operation.
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Excellent point: If your temp selector is at all off of the coldest setting, your heater control valve allows hot coolant into your heater core. Bad!!!
My wife's car has electric dual zone climate control. I hate it. Sometimes it gets colder than it was trying to get, so it turns on the heater to compensate, or vice versa in the winter it will turn on the a/c.
My wife and I always fight because in the winter she likes it warm, so she turns up the passenger side temperature. This makes the heat run on the right and the a/c run on the left - super inefficient and freezes the driver! I tell her to use a blanket!
Also, good point on open window usage in the first minute or two. Another thing to add is to use a reflective sun shade (I do even in the winter to keep the steering wheel cool and keep stuff from melting/fading) and to park facing South or toward wherever the sun will be if you have the option. Combining the reflective sun shade used properly and a cracked window or sunroof can drop the temp inside by 30F, and the temp of the steering wheel/seats by 50F.
After I remove the trim pieces that my roof rack used to fit in and fill with Bondo, I'm painting my whole roof a more reflective color. Probably white, but maybe, after seeing Johnny Mullet's transmission, .....
Kentucky Chrome