Lower Cylinder Head Temps w/AC and High Idle?

NOSS2

New Member
Jul 29, 2018
2
0
1
50
Texas
#1
I have noticed about 10-20 degree decrease when using AC, all other temps stay the same - then goes back up when AC is turned of. Anyone else see this?

2018 GT A10
 
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NOSS2

New Member
Jul 29, 2018
2
0
1
50
Texas
#2
My 2018 GT idles at about 1000 when cold until oil get just to green, which is understandable. But if I shut it down for about ten minutes or more, I have a good minute or two at high idle even though it is still warm. Wouldn't be so bad with a manual because you can slip it, but with an auto, especially in reverse, it is a pain. Is this normal?
 

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