Well actually, it's my truck. It is 20 years old but still in very good shape. Underneath, it looks like there is surface rust that I would like to stop. So because I like to do things myself, and I am a cheap @ss, I was thinking I would take my garden sprayer and spray something on it.

The question is what?

Or might I be better to get under there with a few spray cans of Tremclad and paint it all black? They have a special spray paint that is supposed to bind with rust.

I don't mind a few drops in the driveway, I have two diesels that have dripped all over the driveway anyways.

Thanks