scratched my valve cover. wondering what sort of touch up paint i could use to cover it. i'm not so concerned about appearance-wise. just concerned about rust. i don't know.. it's pretty minor; it would be overkill to get a can of hi-temp spray paint for it. it just need a little touch up. should i just leave it? just worried about rust issues..

thanks

 

I don't think that it will rust. magnesium alloy.