Also I pulled the trailer back to storage and temperatures were better than last week. First thing I did was I pulled in D not 3rd to try to stay in lockup as much as possible. Of course when I hit the hill the truck forced a downshift to third. I held the RPM's at 4,000 except at points where I had to lift my foot to avoid rear ending the slow soccer mom in front of me and dropped to about 3800 RPM. The temperature gauge was much better and didn't even hit 200 on the hill though it did slowly climb there as I drove. So it was better, but I'm not out of the woods yet. below are a few things that probably contributed the differences.
First, I will admit I was distracted with general life issues and forgot to turn on tow haul. I'm seeing this as a negative and will definitely make sure it's on for the next pull.
Second, I was pulling the trailer empty as I was headed to storage.
Third, the pull was only about 20 miles. If I had to go further I'm sure the heat would have climbed.
