Discovering petroleum stains under your parked car can be alarming. If you’re asking, “Why is my car leaking oil when parked?” you’re not alone. Leaks can stem from various causes, but with a step-by-step approach, you can narrow down the problem. Let’s dive into the most common reasons and what you can do about it.
Step 1: Identify Where Your Car is Leaking
The first step to diagnosing a lubricant leak is determining its location. Start by checking for visible lubricant puddles beneath your vehicle. The area where the leak occurs often indicates the component causing the issue. Common spots include under the engine, around the petroleum pan, or near the lubricant filter.
- Oil Pan Area: Leaks around the lubricant pan could mean the pan itself is damaged or that the gasket sealing the pan to the engine has deteriorated.
- Engine Area: If the leak is from higher up on the engine, it might come from a valve cover gasket or other critical seals.
Step 2: Causes of Oil Leaks
Several reasons can lead to lubricant leaking when your car is parked. Understanding these causes will help you decide the best course of action:
- Worn-Out Gaskets and Seals: Over time, engine gaskets and seals can become brittle, leading to cracks and gaps that allow lubricant to seep through.
- Oil Pan Damage: Rocks and road debris can damage the fluid pan, creating holes or cracks that allow fluid to escape.
- Loose or Damaged Oil Filter: If the fluid filter is not properly tightened or has been damaged, fluid may leak from this point.
- Faulty Oil Drain Plug: The drain plug at the bottom of the fluid pan can become loose or have a worn washer, resulting in an fluid leak.
