23/06/2024
to increase beyond "normal" levels. If the engine overheats, it may burn oil.
#4) PCV SYSTEM FAILURE
Failure of your vehicle's Positive Crankcase Ventilation (PCV) system can lead to increased oil consumption. The PCV valve, for instance, may become clogged. A clogged PCV valve will result in pressure building up within the crankcase. All of this pressure can force oil past the seals where it's burned in the combustion chamber with gas and air.
#5) BLOWN HEAD GASKET
A blown head gasket is a common cause of oil consumption. Head gaskets are large seals that sit between the engine block and the cylinder head. It contains many different passages, including passages for oil, coolant and combustion gases. If your vehicle's head gasket fails, these fluids and gases may mix together. The oil may leak into the combustion chamber, which will cause your vehicle to burn oil.
#6) OLD AGE
How old is your vehicle? Many drivers are surprised to learn that it's normal for older vehicles to burn at least some oil. If your vehicle has surpassed the 10-year mark, it will probably burn some oil. What's not normal, however, is excessive oil consumption. Even if your vehicle is older than a decade, it shouldn't consume or otherwise burn a lot of oil. Excessive oil consumption is typically a sign of an underlying problem, such as worn piston rings or the wrong type of oil.