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Originally Posted by Adelwyn
I don't see much of a change when I use the AC, but I drive about 20-25 miles every time I get in the car. When I crank it up at first to cool the car, it does drop the milage, maybe by 0.4 or, if a light is long and I can't do autostop, 0.8. But I scale back the AC as I go until I'm running with the air on 70 degrees and lowest setting after Auto, and I make up the mpg difference. When I'm using the low settings and driving steadily on a flat freeway, I see no difference between having the AC on and having it off. I'm still getting my 48 mpg this tank.
--A
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That's interesting. I myself see decreases and the biggest impact being when it's 100 degrees out and I am jumping into a hot car with AC on max until it cools down. That combined with short trips and stop/go have to be the culprits!!!
I will say one thing. I'm planning on going to Vegas for the 4th. I took the HCH last time, but think I'll take another car this time. It's so hot and the HCH AC is just mediocre in the desert heat.
Lansing