I tried Zaino, Picture Heavy.
#42
Burning Brakes
I've used Z2 and the ZFX accelerator on my pewter coupe for almost 5 years. Just wash your car with Dawn dish detergent and clay bar before the first Zaino application. Afterwards don't use a harsh detergent and the Zaino will last a long time. I haven't clayed the car since the first application and it's still smooth. I have also used the Zaino car wash exclusively. I'm about to buy my second bottle of Z2. I haven't used up the first one yet, but it's getting pretty old; I don't know what the shelf life of this stuff is, but a little goes a long way. i also have an almost full bottle of Z5. I'm not sure why I bought it- I think it's intended for darker paint colours.