This LIQUI MOLY oil 4200 and Mahle oil filter are a perfect combination for use in your Audi A1 1.6 TDI engine. MyCar.Repair has selected them in order to give your car the best care possible, ensuring good engine performance and fuel consumption. The LIQUI MOLY 4200 is a modern high-quality engine oil with very good protection and cleaning properties in service. It has good low-temperature properties. Has good detergent and dispersant additives. This allows the lubricant to clean effectively while driving, while at the same time increase the fluidity of water soot deposits in the engine.