Major Issues:
* Blown Head Gasket: This is a serious problem where the seal between the engine block and cylinder head fails, allowing coolant and oil to mix and potentially leak. You might see oil in your coolant or coolant in your oil.
* Cracked Engine Block or Head: A crack in the engine block or head can allow oil to leak out. This is a very serious issue that often requires a new engine.
* Broken Oil Pan: The oil pan holds the engine oil. If it's cracked or damaged, it can leak oil.
Other Potential Causes:
* Loose Oil Drain Plug: The simplest and most common cause. Check the drain plug for tightness.
* Damaged Oil Filter: A damaged or loose oil filter can leak oil.
* Damaged Oil Lines or Hoses: Cracked or broken oil lines can leak oil.
* Valve Cover Gasket Leak: The valve cover gasket seals the valve cover, preventing oil from leaking out.
* Oil Pressure Sending Unit Leak: This is a small sensor that can sometimes leak oil.
What to Do:
1. Stop Driving Immediately: If you see oil pouring from your engine, stop driving immediately. Driving with a severe oil leak can cause serious engine damage.
2. Call a Mechanic: Get your car towed to a trusted mechanic. They will diagnose the problem and recommend a repair.
3. Don't Ignore It: Ignoring a serious oil leak can lead to catastrophic engine failure.
It's important to note: If you suspect a major issue like a blown head gasket or cracked engine block, it's likely a very expensive repair.
It's impossible to diagnose the exact cause of an oil leak without inspecting your car. Get professional help right away to prevent further damage.
