Posted on 28February2025
Noticing your oil level dropping even though there’s no visible leak? You’re not alone. Many drivers are caught off guard by disappearing oil, wondering where it’s going and what it means for their engine. Since oil is essential for lubrication and engine protection, any unexplained loss could signal a bigger problem. So, what’s happening under the hood? Burning Oil Inside the Engine One of the most common reasons for disappearing oil is that it's being burned inside the engine. This can happen due to worn piston rings, valve seals, or other internal issues. When oil gets into the combustion chamber, it burns along with the air-fuel mixture, creating blue or grayish smoke from the exhaust. In some cases, oil burning happens gradually and isn’t always noticeable right away. PCV System Issues The positive crankcase ventilation (PCV) system is responsible for managing pressure and removing harmful gases from the engin ... read more