TwinTurbo.NET: Nissan 300ZX forum - pretty much all aluminum will oxidize.
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Subject pretty much all aluminum will oxidize.
     
Posted by Marshall on December 30, 2003 at 12:22 PM
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In Reply To Damn. I wonder though posted by SeedyROM (ZCON 2K4!) on December 29, 2003 at 11:27 PM
     
Message Aluminum is a very reactive metal. It quickly corrodes and forms a whitish layer on the exposed metal. Usually it's a pretty thin layer and just looks like haze.

For an oil cooler I'd worry more about the heat transfer rate of the material than the surface finish of the metal. A stainless steel oil cooler would stay shiny for a very long time, but it wouldn't function very well as an oil cooler since stainless has such a poor heat transfer rate.

     
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