Corrosion Free seemed to have a lot of fans but it's almost impossible to find a dealer except Crap Tire. Since, no one will do it, isn't anyone who considers them or is a fan, somewhat suspicious about that? Canadian Tire has a bad rep for auto service and many people are reluctant to go there for that reason.
What about Krown? Some people don't like the drilling - but, they are small holes and they plug them up. The dripping for a couple days might be an issue, can you put something down like cardboard if you don't want the pavement/driveway stained?
I know some people who have pretty modern cars, relative new, maybe a year or two old, and they swear by Krown. It's pretty convincing.
I think there is Rust Check and Ziebart but those two aren't as highly recommended. Any thoughts? I hope it's okay rehashing this subject - the previous posts looked to be around a year or more old. Hence, posting here since I would like to do this before winter.
Thanks for any replies! Much appreciated!!!