What are some good ways to rustproof your car?

Oil is the most effective way to rustproof a car. The brand Fluid Film, which is available on Amazon.com as of November 2015, is a top-rated product. Fluid Film is available in spray cans for easy application.

Vehicles almost always rust in the same places, including seams and the lower 6 inches of any panel, as these are the easiest points for road salt to reach and do damage. Apply rustproofing spray liberally to any place where two pieces of metal join together, including under the hood, behind the headlights and in any access holes in the metal, as well as under and behind fenders and wheelhouses. Too much product is better than not enough in this process.