I live in a maritime province and the salt air takes it's toll. I went to a local marine shop and found a strongly recommended product for protecting metal.
Thousands of picky sailor types can't be wrong.
The product is this:
They use it on their sail boat metal parts (mostly brass, aluminum and stainless). I figured it would be great for a polished valve cover.
Here is a before and after shot of a quick application on a new (but used) wheel spinner I recently picked up. I think any wax would have done the same but this stuff is supposed to protect as well.
