Originally Posted by
3dplane
No A/C on these MPG runs. Only use A/C when rain fogs up the windows or I have a passenger or going somewhere dressed decent and don't want to get sweaty.
I drive with the windows cracked down on the driver side and passenger front if I want more cross breeze.
I work in a non air conditioned environment so I'm drenched all day anyway. Park the car in shade so it's not bad when I get in it.
A/C destroys MPG in the mirage. Makes me wonder those economy challenge runs they do and say A/C was used..did they just
turn it on for a second and say see? We used it! I could see getting MPG in the sixties with A/C but certainly not above that.
My guess is that on those economy challenge runs they are running the a/c with the temperature set to 80f / 26c or so. Not running the compressor very much, just using the dehumidfing in recirc mode to make it tolerable. That's not that unpleasant if you can get the humidity down to 10% or so in the interior of the car. I set mine to 72f / 22c and it's very comfortable. No need to have it like a meat locker anyway.
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View my fuel log 2015 Mirage ES 1.2 automatic: 40.5 mpg (US) ... 17.2 km/L ... 5.8 L/100 km ... 48.6 mpg (Imp)