One other thing I forgot to mention. I live in WI so COLD weather. But... My SL cannot run without the low coolant / coolant light flashing. Today... Went like 20 minutes away and noticed when coming back that the light flashed 3 times... Coolant levels are fine... You think it may be freezing up? Today it was probably like 10 degrees or so outside... Got any ideas there... I've never done a coolant flush... Would you recommend doing one... Oh... And keep in mind... I'm able to work on car because I do have a shop to work in...