AudiA4 Allroad, 8K, 8KH (2012 – 2016) (USA) Engine Oil Capacity. Model Engine Capacity/Filter Capacity Litres (liters) Oil Change Intervals A4 2.0 TFSI (155 kW) (2008 – 2013) CAEB, CPMA 4.6 10 000 miles/ 12 months A4 2.0. Ourtop-rated products that suit AUDI A4 B8 Saloon (8K2) 2.0 TDI Diesel 143 hp best are: Engine Oil COMMA Prolife 5W-30, 5l, Synthetic Oil. Engine Oil LIQUI MOLY Top Tec, 4600 5W-30, 5l. Engine Oil LIQUI MOLY Top Tec, 4200 5W-30, 5l, Synthetic Oil. Engine Oil LIQUI MOLY Top Tec, 4200 5W-30, 5l. XQtf.