I have been using this stuff for years. It is the best I have ever used. The only problem I have is I use to much. It goes on so thin it is had to tell.
My car hasn't been washed with water for over two years. I just wipe it down with their detail spray.
This stuff lasts a very long time.
As far as chrome polish, use this stuff on your chrome also, works great.
If you don't like the shiny tire stuff that everyone else sells. Try the Zanio tire stuff. The best. It don't turn the tires brown like the others.
When you get your stuff, it comes with instructions, or go to the web site it has all the info on the different products.

One other thing.
If you have a group of guys that want to know how to use this stuff. They have what they call Zanio Day. Send Sal an e-mail asking about this. I did this for a BBQ we had with the Nova group I am with also.