This is for the style-conscious wheel connossieurs that prefer that high-quality, multi-piece wheel. Especially those with generously polished lips. You have to clean your wheels often and your environment will usually constitute how often. With AME wheels, specifically, they all have a clear coat over the entire wheel to protect the metal. However, by not protecting the clear coat, chemicals can eat through it and ultimately damage the metal surface causing undesirable staining, blotchiness or fogging to occur. This usually occurs from a substance that is either too alkaline or too acidic and can range from using astringent wheel cleaners, liquid chemicals used in sprinkler systems, foreign substances that splash during driving and even rain in some cases, but not limited to. When cleaning, always clean and dry with a non-abrasive soft cloth and rinse when cool with clean water. If using a wheel cleaner, be very careful in choosing one that isn’t too acidic. Dish washing soap generally isn’t bad since it’s not too harsh and intended to come in contact with your hands. AME performs litmus pH tests on claims that come from customers and the majority of the time it’s evident that a foreign substance either too alkaline or too acidic has come into contact with the surface for too long. Japanese wheels are like girls. They’re sensitive and you have to take care of them. Take care of them and they’ll take care of you.