Foggy Headlights Are More Dangerous Than You Think—Here’s How to Fix Them

Clean, clear headlights make for safe driving, much like the best rock salts on icy roads. Headlights illuminate what's ahead of you, making driving safe at night and in low-visibility conditions. They also help you to be seen by other drivers. Your headlights get dirty, foggy, and yellow for different reasons, including due to oxidation caused by exposure to the elements, sunlight, and road debris. While you can use WD-40 to temporarily brighten your headlights, a proper cleaning and restoration is much more effective.