Use Rust Patrol to coat the underbodies of your trucks and vehicles. It will dramatically reduce corrosion from those chemicals and salts on the road. At 1,000 square feet of coverage, you’ll be able to preserve a lot of vehicles with just one gallon. Since it’s attracted to metal, Rust Patrol will seek out nooks, crannies, and crevices for complete coverage. You can spray it, or even better, brush it to cut down on drips.