Posted on 8/29/2025
Every vehicle needs fresh engine oil at regular intervals. Oil lubricates moving parts, reduces friction, helps manage heat, and carries away small contaminants from inside the engine. Without clean oil, metal surfaces would grind against each other, creating damaging wear in a short time. An oil change removes the old, used fluid and replaces it with new oil that restores protection and performance. But what exactly happens to the oil once it leaves your car? What Happens to Old Engine Oil When oil is drained from your engine, it doesn’t just disappear into waste. Used motor oil is collected carefully and sent to recycling or re-refining facilities. Because oil never really “wears out,” it can often be cleaned, processed, and reused. What degrades during its time in your engine are the additives that help fight corrosion, reduce sludge, and manage temperature. Those can’t be restored inside the car, but they can be replenished in a refining p ... read more