Unless you hope to change your automobile once in three winters, you must make sure you take measures for corrosion proofing. The application of rust preventer can ensure that your vehicle does not make its way to an early grave. However, you do need to undertake such application more than once in the lifespan of the car.
Nature of Product
An oil based product consists of a corrosion inhibitor along with a lubricant used to coat the vehicle. Spray cans have a similar constitution, but they are easier to apply, especially when it comes to the undercarriage application. Some products include a dispensing agent that helps the liquid, wax or spray penetrate to the smaller parts of the vehicle and seep under the hood.
The plus is that quality products like Noxudol do not tend to wash off and give you solid use of just about a year even with bad roads, humid summers and icy streets in winter.
Frequency of Use and Application
Whether you opt for the spray or an oil based product, you need to ensure that your truck or SUV is coated with it at least annually. You need to cover all of the exposed sheet metal if you hope to force out dampness that is soon to accumulate. This way you will find upon inspection that the undercarriage has an immaculate chassis.
At the end of the winter, even if you do decide to sell your vehicle, you will get a hike in the price owing to it being rust proofed.