Z4 Roof care

[ravstar13]

what is the best product to use for a z4 roof

Its seen better days and needs to be cleaned looks like a bit of moss attack...is there a cleaner and protector that anyone recommend at all to keep it good?

[harry_p]

i know autoglym do a soft top hood cleaning kit, no idea whether it's any good or not though.
you don't want to be using a normal car shampoo though as although it'll clean it fine, it will foam up every time it rains

[PG325]

I used Renovo on my cab, cleaned, restained black and then sealed, looks as new.