This is a general comment about Honda's and towing. Honda is very very concerned about the fluid temperatures during towing. Much more so than other companies. Look at your owners manual and if they say you need a transmission fluid cooler or oil cooler, Honda really thinks you need one. This is not a CYA. There have apparently been some expensive failures when you don't take their advice.

I found out about some of this when Honda technical called to find out how I used up the differential and transmission fluid life so quickly on my new Ridgeline.