Is a valve cover gasket leak serious?
The valve cover is a metal cover that is found on the very top of the engine, attached to the engine by a gasket made of rubber or cork. That underlying gasket acts as a seal between the valve cover and the cylinder head to prevent oil leaks. 
When customers come into the shop for a repair on this gasket, they often ask, "Is a valve cover gasket leak serious?" These covers are designed to be removable so the mechanic can access the valves for adjustment but, even with gasket protection from the bottom and top, it’s common for the valve cover gasket to break over time. The engine’s high temperatures can cause the gaskets to grow hard and crack over time, causing the part to malfunction.
Read more: Why is my valve cover gasket leaking?
When customers come into the shop for a repair on this gasket, they often ask, "Is a valve cover gasket leak serious?" These covers are designed to be removable so the mechanic can access the valves for adjustment but, even with gasket protection from the bottom and top, it’s common for the valve cover gasket to break over time. The engine’s high temperatures can cause the gaskets to grow hard and crack over time, causing the part to malfunction.
Is a valve cover gasket leak serious?
The short answer is, yes. If your engine is losing oil, running the car for too long without an inspection and repair can cause permanent damage. If the gasket is worn out, it will leak engine oil and the top of the engine will be likely be covered in oil. It can also expose your engine to dirt, debris and other pollutants with the ability to cause permanent damage.You’ll need to get an immediate replacement to prevent serious damage to your engine. Whenever the valve cover gasket is replaced, ask your mechanic to inspect the valve cover as well.Read more: Why is my valve cover gasket leaking?