Overfilling your oil can lead to several issues with your vehicle. Excessive oil can cause foaming, leading to aeration and reduced lubrication capabilities. This can result in increased friction and heat, potentially damaging engine components. Additionally, overfilled oil can put pressure on seals and gaskets, causing leaks and further engine damage. In severe cases, the excess oil can be drawn into the combustion chamber, leading to engine misfires, reduced fuel efficiency, and increased emissions. Ignoring overfilled oil can ultimately result in catastrophic engine failure and costly repairs. Therefore, it’s crucial to ensure oil levels are within the recommended range to maintain optimal engine performance and longevity.