* Damage to the crankshaft seals: Excessive oil pressure can force oil past the crankshaft seals, leading to oil leaks. This can contaminate other engine components and potentially cause further damage.
* Damage to the oil pump: The oil pump might be overworked and damaged due to the increased volume and pressure. This could lead to oil pump failure.
* Foam in the oil: The excessive oil can churn and aerate, creating foam. Foamy oil doesn't lubricate as effectively, leading to increased engine wear and potential seizure.
* Damage to the turbocharger: If the oil level is high enough, it can damage the turbocharger bearings and seals, leading to turbo failure.
* Increased crankcase pressure: The excessive oil can build up excessive crankcase pressure, potentially damaging other engine seals and gaskets.
* Contamination of the PCV (Positive Crankcase Ventilation) system: The PCV system could become overwhelmed, leading to oil leaks or blockages.
In short, overfilling by that much is likely to cause significant and costly damage to the engine. The best course of action is to immediately drain the excess oil to the correct level as specified in your owner's manual. After draining, closely monitor the oil level and look for any leaks. It's advisable to have a mechanic inspect the engine to assess the extent of any potential damage. Ignoring the problem will almost certainly lead to more serious and expensive repairs down the line.
