[salty]

Not sure about durability as i've never used them on my cars. I did use the 3M wax in the tin, not sure if that is what you are referring to, on a ladies car and them switched to Z2 and she commented that the 3M was easier to clean. I would think it would last a couple months.

The cleaner wax i used to use on some dealership lot cars and found it outstanding on red. I'll see if i can find any pics.