Free All Rust Eater Deep Penetrating Oil, 11 Oz Aerosol – Loosens Rust
Free All actually has a rust eating agent in it to not only penetrate rust but to help dissolve it. With Free All you use less force to loosen that rusted bolt so there is less chance of breaking it.
Rust Eater Deep Penetrating Oil 11 oz Aerosol 2 Pack Safe on Paint Plastic
Also works to loosen red and white lead, tar, grease, carbon, and graphite buildup. 11 oz aerosol can with a precision spray nozzle for more accurate application in tight or hard-to-reach areas. Formulated to penetrate rust and help break down corrosion for easier removal of stuck parts.