Chirs, it is illegal for us to use in the SCCA but I have tried it on old tires for a test day. It "seemed" to work. I knew from the previous outing that the tires I had were shot. I followed the directions on the can, treated twice as asked, and then tried them out. The tires "seemed" better for 1/2 the day, then returned to their original condition or maybe even slightly worse.
The directions on the Hot Lap we have is written for simpletons. I quote:
1. Using a paint roller apply three coats on Wednesday and three more on Thursday.
2. Race on Saturday.
3. If the race is on Friday apply three coats on Tuesday and three more on Wednesday.
What do you do if you race on Sunday? Or Monday?