:dunno: ok i already bought zaino and used it several times and gotta say really good stuff.:love: ..i have z-1,and z-5 ,z-6 gloss enhancer and of course the claybar...my question is everytime i wanna wax do i have to use the z-1..eventually when my z-1 runs out im gonna upgrade to the z-fx i was also wondering how the z-pc worked ....also give me some feed back on what products you use from zaino.i think its the best stuff since sliced bread just expensive.:lol: ....keeping a black car clean is very hard especially in winter