GREENSBORO, N.C. — You might have seen life hacks online that say you can clean off your headlights with bug spray or toothpaste. But do they actually work? We did the experiment for you. We used OFF!

Do you have cloudy headlights? It’s not just a cosmetic, aesthetic appeal issue—it can also impact how well you see and be seen at night. We also think that lousy headlights quickly age a vehicle, so ...

Your headlights are meant to give you a wide, clear beam of light at times of low visibility, but they can’t do their job if they’re dirty. Fogged-up or dirty headlights aren’t as effective as they ...