Originally Posted by Yadkin
NO. I believe the suggestion was to monitor the transmission temperature while towing to verify that it is operating in the normal range.
Yes, this is correct. The debate I'm having in my head is that my trailer is light enough that leaving it in fourth gear on the highway seems like overkill, but heavy enough that I'm worried about just putting it in drive. So in the EVIC, one of the read outs is transmission temp. So next time I'm hooked up, I think I'll experiment and monitor the trans temp carefully. If the trans temp starts going up, that's a sign that it's likely working too hard (due to shifting in and out of overdrive too much) and it will tell me that I need to leave it in fourth. But if the trans temp remains close to normal - then I should be OK to just tow in drive.