Regular oil and filter changes are important routine maintenance steps that help you obtain the best performance from your SEAT's engine. Modern motor oil contains additives that reduce friction, reduce corrosion and help keep your engine clean. The filter traps dirt and removes other impurities that can adversely affect engine performance. When the filter becomes clogged, it prevents the proper flow of oil, which can lead to excess engine wear and premature failure. Advantages to using SEAT oil filters include high dirt-absorption capacity, high resistance to high pressure and prevention of fuel entering the oil circuit. You should change the oil and filter according to the recommended schedule in your owner's manual.