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Car Care Guide

Road salt and your car: winter protection.

Every winter, Pennsylvania roads get treated with salt and salt brine. It keeps the roads safer, but it is hard on your car. Here is what it does and how to keep the damage to a minimum.

By Noah Malek, owner ·

What road salt does to a car

Salt mixed with water speeds up rust. When slush and brine splash up under the car, they coat the parts you never see: the frame, brake lines, fuel lines, suspension parts and the inside of the wheel wells. If that salty film sits there for weeks, it keeps working on any bare or chipped metal.

  • Underbody and brake lines. The most exposed metal on the car, and the most expensive to fix once rust sets in.
  • Paint chips. Any chip from winter gravel exposes metal, and salt water gets right into it.
  • Wheels and lug nuts. Salt dulls finishes and can corrode the hardware.
  • Carpet and floor mats. The white crust from your boots soaks into the carpet and leaves stains that can be hard to get out if they sit all winter.

Why winter is when washing matters most

In summer a clean car mostly looks nice. In winter, washing is maintenance. Getting the salt off regularly is one of the simplest things you can do to slow rust and protect what your car is worth when you sell or trade it in.

How to protect your car this winter

  • Protect the paint before the first storm. A sealant gives salt and grime less to grab onto. Our Full Exterior Detail includes a spray sealant that lasts about 3 to 6 months.
  • Wash often, especially after storms. Every week or two when the roads are white. Pick a wash with an underbody rinse to get the salt off underneath.
  • Use rubber all-weather mats. They catch the salty slush before it reaches the carpet.
  • Vacuum and clean salt stains early. They're much easier to remove before they set.
  • Touch up paint chips. Cover bare metal so salt can't get to it.
  • Get a full detail in spring. Clean out what winter left behind, inside and out.

Detailing in the cold

We work year round. For mobile service, exterior work depends on the weather: if it's raining or below 40°F, we'll reschedule at no charge, or you can switch to drop-off in Coopersburg. Interior details are a great winter job, since that's when salt and slush get tracked inside.

Questions

Common questions.

Does road salt really cause rust?

Yes. Salt mixed with water speeds up corrosion on bare metal. The underbody, brake lines, wheel wells and any paint chips are the most exposed.

How often should I wash my car in winter?

Every week or two while salt is on the roads, and soon after a storm. Make sure the wash includes an underbody rinse.

Should I wax or seal my car before winter?

Yes. A wax or sealant gives salt and grime less to stick to and makes washing easier. Our Full Exterior Detail includes a spray sealant that lasts about 3 to 6 months.

Can you get salt stains out of car carpet?

Usually, yes. Our Standard Interior Detail and Deep Interior Restoration include carpet shampoo with extraction, which is how salt stains are lifted. They come out easiest when they haven’t sat all winter.

Do you detail cars in the winter?

Yes. Drop-off is available year round. For mobile exterior work, we reschedule at no charge if it’s raining or below 40°F, or you can switch to drop-off.

Get ahead of winter.

Seal the paint before the salt hits, or clean the salt out of your carpet. No deposit, and you pay when the service is complete.