Castrol RX SUPER 15W-40 CJ-4/E9 is an advanced, heavy duty diesel engine oil. It is suitable for use in high speed 4- stroke diesel engines that use a broad range of fuel qualities. It is compatible with diesel engines fitted with EGR and the latest exhaust after treatment systems such as; DPF, DOC and/or SCR. Recommended for use in all naturally aspirated and turbocharged diesel engines fitted in trucks, tractors, buses, LCV’s and off-highway equipment, agricultural and fixed plant machinery. New and advanced Castrol RX SUPER 15W-40 CJ-4/E9 with specially engineered DuraShieldTM boosters delivers 40% better wear protection. One of the main causes of damage in modern engines is abrasive wear. Castrol RX SUPER 15W-40 CJ-4/E9 with DuraShieldTM boosters is proven in industry testing to provide protection to your engine in two ways: Under severe engine operating conditions soot can agglomerate to form large particles which displace oil on moving metal surfaces. This results in metal to metal contact. Castrol RX SUPER 15W-40 CJ-4/ E9 with DuraShieldTM boosters helps to prevent the agglomeration of soot as well as protecting surfaces from wear. Castrol RX SUPER 15W-40 CJ-4/E9 with DuraShieldTM boosters provides a protective layer on the moving metal surfaces which resists break down even under difficult conditions. Specification/Technical Data: ACEA E9, API CJ-4, JASO DH-2, CAT ECF-3, Cummins CES 20081, DDC Powerguard 93K218, Deutz DQC III-10LA, Mack EO-O Premium Plus, MB-Approval 228.31, MTU Oil Category 2.1, RVI RLD-3, Volvo VDS 4. Suitable for use in agricultural applications where API CJ-4 or ACEA E9 is required.