ok well lately,its been sub degree weather,like single digits,i would start my truck about 15-20 mins before work early in the a.m,and the elevated idle will kick in of course,by the time i go and get into my truck,my evolution race,has read around 170-175,which seems like alot for sittin for 20 mins,then i'll go drive it,and the trans temp will drop down to 145-155 which is normal...is this a normal situation? I just had my trans built by george at Bigdipper if it matters.Also have a ally deep pan.thanks a bunch.