also, can aluminum become oxidized when secured down with metal nuts and bolts vice stainless steel nuts and bolts?
mixing to two dissimilar metals can give you some kind of reaction,like an engine with cast block and aluminum head you usually get that white stuff but i also think it has something to do with the coolant and how it carries electricity.
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The oxidation is the white powdery stuff on the metal. It can be cleaned with aluminum cleaner. Exposure to the weather can cause the rust, electric current. I advise using a sealer on the metal to keep it clean.
You will notice a white powder looking substance on the aluminum. Most of the time it is caused by two dissimilar metals interacting with each other. The second part of your question the answer is yes
Aluminum is very reactive to caustic substances, as well as acids. One of the perils of running nitrous oxide injection on a motor with aluminum heads or pistons is that you generate trace amounts of nitric acid which will corrode these parts over time. As mentioned here by other members, aluminum oxide is a powdery white residue. In the presence of water for a long period of time, or with the reactions mentioned above, aluminum will oxidize. If it's wheels you are talking about, the best solution is to keep them clean, dry, and free of brake dust. A lot of wheels though come with a coating to protect the aluminum.
