I currently tow with an 08 Duramax and am considering a new "family" rig. Does anyone tow a 5 place enclosed trailer with a Yukon XL with the 6.2? You can get them in a 2500 and you only loose 600 lbs compared to the duramax in weight, so I don't think it would be thrown around by the trailer. Just wondering about pulling power and mileage I guess. I may be crazy, but of course the salesman tells me "NO PROBLEM"!!!