When it comes to maintaining your BMW 118i, using the correct oil is essential for optimal performance and longevity. The type of oil you need depends on various factors, including the model year, engine type, and climate you drive in.
Generally, BMW recommends using a fully synthetic oil that meets the BMW Longlife-01 specification. These oils are designed to provide excellent protection against wear and tear, as well as extended oil change intervals. Some popular brands of oil that meet this specification include Castrol Edge, Mobil 1, and Liqui Moly.