I just wanted to add that the ambient air temp for my last trip was 110 deg F. You Canadian guys have pretty cool weather most of the year so that's not to much of a problem for you.
Have enjoyed this thread. My towing rig is a 2002 GMC Sierra 4X4 5.3L auto trans with 3.73s and all the factory towing packages. I tow a 23' Pace snowmobile v nose trailer. My towing weight is 7,000 lbs. With 3 Can Am Outlanders and all of our other gear we add to camp for 1 to 2 weeks has the...