Well 2650 miles down and 620 to go and I am very impressed with my truck. Only towing 12k lbs but it it on the Alaska HWY. It is handling the 12% grades with no issues and pulling out and passing with no issues. S472 works well as long as you are above 2300 rpm. The only issue i had was an intercooler boot blowing off...in the wrong lane, passing 2 motorhomes! Kind of scary. Oh well we will be there tomorrow night. Just impressed and wanted to share. In Whitehorse, YT and off to Fairbanks in the morning. Oh yeah and 13 mpg:thumb: