Varfleet Advanced SDX 20w50 is a stable, stay-in-grade engine oil for use in many older engines. Varfleet Advanced SDX 20w50 is formulated from high quality mineral base oils and high performance additives to produce a classic standard quality petrol and diesel engine oil. Varfleet Advanced SDX 20w50 is suitable for nominally aspirated petrol and diesel engines in passenger cars and vans with older engines. API CF-4/CF/ SJ ACEA E2 MAN. MAN 271 CAT. TO-2 Volvo. VDS-2.0 MACK. EO-L Mercedes Benz. MB 228.1 / MB228.3