20 Interesting Uses for WD-40

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4. Remove Paint Rubs and Smudges from Your Car

car, smudge, paint

Okay, so you come outside from grocery shopping only to find that someone got just a little bit too close to your car with a shopping cart and left a paint smudge. Or, another driver got a little too close and left behind a paint rub.

While your first instinct may be to panic or get angry, don’t. Instead, whip out the WD-40. Next, spray the affected area, wait a few seconds and wipe the area with a clean rag. Problem solved!

3. Remove or Revive Spark Plugs


Removing stuck spark plugs with WD-40 may be a little-known secret to you, but NASCAR mechanics have known about this for quite some time.

In fact, this is exactly how they remove stuck spark plugs. And, they come out quickly and easily, too.

On the other hand, if your spark plugs need reviving — in other words, if you’re having trouble starting your car on a humid or rainy day — whip out the WD-40 and spray it on the spark-plug wires.

Then, try starting your car again. Why WD-40? Because it repels moisture, thereby keeping it away from your spark plugs.