Driving my 2007 gas Safari Simba 8.1 GM engine south on 287 in Wyoming today. Rolling hills,nothing major. Temperature in low 80's,I was towing my Jeep Sahara. As it warmed, I turned on the dash air. ...
Yes I always carry a couple of gallons of Dex-cool. Drove an additional 180 miles with the only difference being the a/c was turned off and had no problems. I'm going with it was the a/c. Thanks!