Looking for some good advice on all these rust coatings. Rust Bullit, Zero rust, Rust kill? The rust I have is not really bad but I would like to stop it before it gets that way. Has anyone got a happy story on this topic?

I use Ospho and like it. Its a liquid so it can be brushed, sprayed, whatever way you choose. It'll turn anything rust into a carbon like material which is supposed to stop the continuation of rust. As well its supposed to be a good inhibitor when put on bare new metal. Easy to use.