Can Cola Clean Car Headlights?
2 Answers
Cola can be used to clean car headlights. Pour cola onto the headlights, then wipe them with a clean towel. If the effect is not noticeable after one application, repeat the process several times. Finally, rinse with clean water and dry. Cola contains acidic substances such as carbonic acid and citric acid, making it an effective cleaning agent. It is particularly effective against rust and grease. For rust on surfaces like paint or chrome strips, which would otherwise require repainting or replacement at a repair shop, cola can clean it off easily unless the rust is severe enough to expose the primer. Headlight covers are typically made from polycarbonate or polymethyl methacrylate plastic, which can become dirty, yellowed, and aged over time, reducing light transmission and dimming the headlights, thus affecting driving. Prolonged exposure to high temperatures, UV rays, and ozone in the air can accelerate the aging of headlight covers. Additionally, prolonged exposure to sunlight is a major cause of headlight yellowing. Avoiding direct sunlight is the simplest way to prevent headlights from turning yellow.
A few years ago, I tried cleaning my car headlights with cola myself, thinking its acidity would surely remove dirt, but it backfired: the lens turned yellow and left stains. Turns out, the phosphoric acid and sugar in the cola corroded the plastic surface, and over time, the headlights became even hazier, compromising nighttime driving safety. Since then, I've switched to using automotive-specific cleaners or mild soapy water for wiping—simple, cost-effective, and it extends the headlights' lifespan. Now, whenever I see people online recommending the cola hack, I warn them not to take the risk. Professional products are the way to go, saving you from wasting money on repairs like I did. Regular headlight maintenance is more important than rushing for quick fixes, especially for older cars that need extra care.
