[BeasleyRB]

What product works best to clean discloration from an aluminum intake manifold? Last year we had a very cool overnight temperature then a very warm and moist front came through. Water condensed on almost everything in my shop including my cars engine. That resulted in brown spots from the condensed water on the intake manifold. What can I spray on the aluminum parts that will clean them without being too agressive on other metal parts in the engine bay? What has worked best for you? Thanks