Re: '96 Outback Rust Driver's Side Rear Quarter Panel
How bad is it? I have heard naval jelly (don't remember the brand) is the best to use if the rust isn't too deep. I believe you can sand it first, as well.
If the rust is deep and eating holes through the panel then I am not too sure the best method to help with that. Maybe someone a bit more knowledgable will have some ideas.