If you own your vehicle for a number of years, at least once you will run into those dreaded oil spots on the ground underneath.
The internal combustion engine relies on oil to function.
A valve cover leak can occur well before you ever know it is there.
Cylinder head gasket leaks are a problem that can plague any modern internal combustion engine no matter the year, make, or model.
Oil is the lifeblood of your car's engine and getting enough oil pumped into your engine is the only way that the internal moving parts can get the lubrication they need.