[scrubjaysnest]

Each state is different on towing speed limits but many are below that for cars not towing. Many trailer tires are rated for 65mph maximum at 65 psi.
When you drop below what TM recommends and the tire manufacture recommends you run the risk of a blow out due to overheating. After 12000 miles last year with the TM and over 20k miles the year before with a pup I can seen no reason to under inflate tires. I get my best gas mileage at 62 mph towing the TM with the Dodge.

Here is a thread that has links to speed limits while towing plus other information.

http://www.trailmanorowners.com/foru...05&postcount=4