Sitting in traffic the 82degree tstat wont really help you unless you get the fans to cut in earlier. Though cruising around without the fans cutting in earlier and it will run abit cooler. But yeah like I said... if the reason you are doing this swap over is to run cooler engine temps when just sitting there in traffic, you will need the fans adjusted or your just wasting your time. When my fans werent adjusted right, it was getting up around halfway sitting in traffic with a 72deg. tstat. The only way I could bring the temp down was by cranking the heater on with high fan boiling my ass off.