Larry M wrote:
A friend gave us a 10 oz spray*can.* He swears by it.* Any suggestions on what to and what not to to use this stuff on?* Is it any good?
*There are several different companies that make corrosion inhibitor spray from moderately helpful (WD40) to really good (Mercury corrosion guard). They are designed to leave a film that inhibits corrosion on surfaces that rust. Areas that come to mind would be hardware made of steel that may not be painted such as motor mount bolts. Also, if you replaced a starter and chipped the paint off the bolt heads, spraying the heads would slow or eliminate the rusting. Some of the sprays leave a thick film that attracts dirt.
I would avoid using it on engine parts that get really hot like where the paint burns off the manifold. Also, wouldn't use it on things that move like shifter linkages. There is a specific spray for battery terminals to prevent corrosion, the name escapes me.
In general I don't use the stuff much, preferring to keep things painted as much as possible.