Since no one could shed some light on the actual topic other than to promote Nu Finish (which I know to be great), I did some research of my own and came up with the following on a Toyota site: PAINT PROTECTION AND ENVIROSHIELD PAINT PROTECTION AND ENVIROSHIELD PAINT: When you buy a car it is important to protect the paintwork and keep it looking new. The paint treatment we apply to your car will: · Prevent paint from fading and oxidising from the sun's damaging UV rays. · Create a non-stick surface - Teflon formula. (non- stick) · Lock in shine, maintaining that new car look · Never require waxing or polishing · Protect from road grime, rain and pollutants like: - bird droppings (bat and possum too!) - tree sap - petrol marks - acid rain - alkali pollution - hard water deposits NEW CARS -6 YEAR WARRANTY ON PAINTWORK USED CARS - 4 YEAR WARRANTY ON PAINTWORK When I put it in for it's 10,000km service, I'll ask then about using only Ming car shampoo and the like.