Winter may bring beautiful snowy landscapes, but it also introduces a serious threat to your vehicle: rust and corrosion. Snow, slush, and especially road salt can cling to your car’s exterior and undercarriage, accelerating the rusting process. Regular car washes during the colder months are essential for protecting your vehicle’s appearance and structural integrity.

Salt Is the Enemy

Road salt helps keep driving conditions safe, but it’s highly corrosive. When it builds up on your vehicle, especially on the undercarriage, it starts eating away at metal surfaces. This can lead to rust, damage to brake lines, and a shortened vehicle lifespan.

Wash Frequently and Thoroughly

Washing your car at least once every two weeks in winter—or more often after snowstorms—helps remove harmful salt and grime. Focus on areas prone to buildup like wheel wells, fenders, and the undercarriage. Choose a car wash that includes an underbody rinse for the best protection.

Drying Matters

After washing, make sure your vehicle is dried properly. Moisture left behind can freeze and trap contaminants, leading to rust in tight corners and joints. If possible, dry your car in a garage or use a microfiber towel to help speed up the process.

Apply Protective Coatings

Waxing your car before winter and using rust-inhibitor sprays underneath can create a barrier against moisture and salt. This preventive step is key to reducing the long-term risk of corrosion.

Winter roads may be unavoidable, but rust and corrosion don’t have to be. Regular car washes—especially ones that target the undercarriage—are your first line of defense against salt and grime buildup. Combine that with proper drying and protective coatings, and you’ll keep your vehicle looking sharp and running strong all season long. A little maintenance now saves you costly repairs later and helps your car stand up to whatever winter throws at it.