The forum search is a little bit weak, so I thought I would give a search tip that helps me to find more information.
You can use google to limit your search to this forum. Enter the following into your google search field:
[place your search terms here]
so, if I wanted to search for information about tow vehicle tire pressure, I would enter the following
tow vehicle tire pressure
The forum search tool will not give you any results, but Google will give you relevant results. It's pretty cool