You’ve probably heard odd car “hacks” before—but this one actually has practical, science-backed uses. While you shouldn’t just toss a glass of table salt into your car and forget it, keeping a container of salt in your vehicle can be a surprisingly smart move—especially in winter or emergency situations.
Here’s what it really does (and what it doesn’t).
❄️ 1. De-Ice Frozen Door Locks & Windows (Emergency Fix)
- How it works: Salt lowers the freezing point of water.
- What to do:
- Mix 1 part salt + 2 parts warm water in a spray bottle.
- Spray on frozen locks or windows to melt ice quickly.
- ⚠️ Don’t pour dry salt directly on paint or metal—it can cause corrosion over time.
🛞 2. Temporary Traction Aid for Stuck Tires
- How it works: While sand or cat litter is better, salt can add slight grit on icy patches.
- What to do:
- Sprinkle salt in front of or behind stuck tires to help melt ice and improve grip.
- ⚠️ Not ideal long-term—salt melts ice but leaves a wet surface; use only if nothing else is available.
💧 3. Absorb Moisture & Reduce Fogging (Desiccant Trick)

