Need advice on how to try and restore finish on my 2006 20 hp Honda outboard. Picture attached. This summer I covered my outboard while outside with a clear plastic sheet for a few days. When i removed it I saw a lot of marks/cloudiness in the glossy finish on the top. They looked like some kind of staining/water marks had penetrated the finish. The finish is still as smooth as ever- just cloudy in the affected areas. Have tried some basic cleaning products - but no luck so far. Didn't want to try anything too abrasive so as not to rub the glossy finish right off. Any advice on what may have caused this and what i can do? Thanks!!