The primary function of an oil filter is to clean the engine oil by removing harmful contaminants. It consists of a mesh-like filtering material, usually made of fine fibers or a combination of fibers and synthetic materials. As the engine oil passes through the filter, particles like carbon buildup, dirt, and metal shavings are captured. This prevents these impurities from causing excessive wear on engine parts, leading to improved engine longevity and performance. In addition, an oil filter helps maintain proper oil circulation within the engine, which aids in the cooling and lubrication of engine components.

Another important aspect of oil filters is their design, which can vary depending on the two-wheeler manufacturer and model. Some bikes use a screw-on type filter, while others have a cartridge-based design. The filter’s efficiency and ability to trap contaminants depend on its design, material, and the mesh size. A high-quality oil filter can effectively trap even very fine particles, keeping the engine oil cleaner for longer periods and reducing the overall need for oil changes. However, an inferior quality or clogged filter may cause reduced engine performance or an increase in engine temperature.