1. Oil Foaming: Excess oil causes severe agitation and foaming in the oil pan when the crankshaft spins, leading to reduced lubrication capabilities and potential damage to engine components due to oil starvation.
2. Increased Pressure: Overfilling the oil level forces the oil pump to work harder, as there's more oil to move around the engine. This added pressure can strain the oil pump's seals, filter, and other components, potentially causing leaks and seal failures.
3. Oil Churning: An excessive oil level causes increased splashing and aeration. Air bubbles in the oil can lead to cavitation and increased wear and tear on internal components.
4. Spark Plug Fouling: In some cases, excessive oil may find its way into combustion cylinders past piston rings, especially in engines with higher piston-to-cylinder clearances. This oil contamination can foul spark plugs, leading to inefficient combustion and reduced engine performance.
5. Engine Overheating: The extra oil can raise engine operating temperatures by creating more friction between moving parts. As the oil level rises, it reduces the air space inside the engine, making heat dissipation less efficient.
To address this issue, you can drain the excess engine oil yourself or have a professional mechanic do it for you. It's important to refer to the vehicle's owner's manual to see the recommended oil capacities and levels.
