People know the D.O.T. is providing an essential service and may not even mind getting caught behind those plow trucks or that the salt being used is eating away at their car the moment it hits it. Road salt is a part of life for those who live in areas prone to extreme wintery weather. But you don’t need to let salt residue eat away at your car, impacting its appearance and performance. With just a few simple strategies, such as using a car cover outdoors and frequently washing your vehicle, you can prolong your car’s life.