What is an oil change, and why is it necessary?

An oil change involves draining the old engine oil and replacing it with fresh oil, which is essential for maintaining proper lubrication and performance of the engine. Engine oil serves several critical functions: it lubricates moving parts, reduces friction, helps to cool the engine, and cleans impurities and deposits from the engine components. Without regular oil changes, the oil can become contaminated with dirt, debris, and byproducts of combustion, which can lead to diminished lubrication properties and increased wear on the engine. This ultimately affects the engine's efficiency, performance, and longevity.

While reducing engine noise, improving airflow, and enhancing fuel efficiency can be benefits associated with a proper oil change, the primary and most important purpose is to maintain lubrication and optimal performance. Regular oil changes ensure that the engine operates smoothly, minimizing the risk of potentially costly repairs due to engine damage from inadequate lubrication.