Sorry if this is a topic which has come up again and again...
I have a pretty new black metallic Audi and have been using Autoglym wet wax but i find it lasts about 2 days max down the side panels if they get muddy. I live down a country lane which is pretty terrible in winter but its only the side panels and the bottom section of the boot area that i'm having trouble with.
Maybe i need a sealant or to change the wax. Anyone used a sealant and wet wax?
Any suggestions? Its got to be easy to apply