I would like to know in the end how much it cost for the protectant, how much time you spent applying it, and how much longer you end up extending the life.
To me, the cost of tires is not much compared to my time.
I haven't found yet anything that ends up saving me money
I think it was around $40. *If* it does anything, and *if* the application actually lasts over a year and a half (not being driven) then I can't see a downside. With my 33's, pretty sure I can do two applies, maybe three for that cost.
Time to apply is definitely a factor, it probably took me an hour or two (it's like painting, I didn't want to get it everywhere and tried to ensure there was no gap in coverage in the tread). Sure hope it did something, these tires are probably $1k or more a set now, and I absolutely detest replacing them at most maybe 15k miles.
I didnt try getting some on the painted wheels, if it's ok to be sloppy with the stuff application could probably be a lot faster. I didnt have time to test and deal with potential ramifications of doing so.