Car wash without water or waterless car wash is quite popular abroad. The reason, in some countries, washing the car at home using groundwater was banned because it is considered a waste of natural resources.
A new way to wash the car, and do not need to use a lot of water. With a much more glossy results than conventional car wash because it was using a wax formula.
Car air conditioner theory, ideally, evaporator cleaned at least once a year, or every 20,000 km. Less is better, because basically, the air we breathe in the cabin definitely passes through this important component.