The Midwest is a pretty warm in the summer, often in the 90's with heat index well above 100 and high humidity. I stand by my statement unless you are tracking the car in the heat. Last time mine went into limp mode was at the first Utah rally where track temps were in excess of 108. Ford cut costs by eliminating the screens and were more like the Canadian cars coming off the line. I have driven to almost all the rallies and never had a problem, including the warm temps of Texas. I can't remember any of the Texas crew having overheating issues for years. Again, if the cooling system is purged correctly and filled correctly, there should not be any problems.