Alloy wheels pitted and rusing

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Most wheels on the market today feature a painted surface, machine lip or face with a clear finish. To take care of your alloy wheels without damaging the protective finish frequent washing with a quality car wash, such as McGuire's or Polyglaze, and water is highly recommended.
Periodic use of a bug and stain remover can prevent permanent damage, whilst waxing will protect the alloy wheel finish from the elements. NEVER use abrasive cleaners, steel wool, or polishing compounds. ALWAY's be wary of automatic car washes. SOME use acidic cleaners to remove dirt and grime. Others may use stiff brushes for cleaning alloy wheels and tyres. BOTH of these WILL HARM your Wheels So always ask about equipment and procedures before entering the car wash.
Never allow your alloy wheels or tyres to be STEAM cleaned. Hot steam can dull the paint or clear coat finish on your alloy wheels. NEVER clean HOT Wheels always wait until they cool down. Water on your alloy wheels will dry faster on a hot surface and cause your cleaning solution to dry to quickly leaving spots or a film of soap on your wheels.
Cleaning wheels in direct sunlight also causes the wheel to dry out to quickly, leaving spot's in the finish. This is a particular problem with chrome wheels, and machined faced alloy wheels. Clean your wheels on a regular basis, they are often the dirtiest part of your vehicle and they're constantly exposed to the elements, corrosive brake dust, ocean and sea salt plus the inevitable road tar.
Disc brake dust is a BIG problem. If not REMOVED it can actually burn small marks into the chrome or alloy wheels, which in turn if left untreated can lead to PITTING of your alloy or chrome wheels. Chrome plated wheels are particularly susceptible if left untreated SO please make sure care is taken. Clear coating on your machine lip of face alloy wheels can suffer a similar fate if left untreated.
If you do not clean Chrome Wheels or Alloy Wheels regularly moisture, which harboured in brake dust and grime, can lead to SEVERE pitting and rusting of chrome wheel surfaces.
TAKE "PROPER" care otherwise your warranty on your Alloy wheels or Chrome Wheels could be voided.