TOP DOG XDO is a heavy duty high performance, OEM approved diesel engine oil meeting the latest in lubrication technology formulated for Australias harsh environment meeting OEM requirements from Mack, Volvo, Detroit and Cummins. It provides superior protection against engine wear and sludge build up ensuring a cleaner engine. TOP DOG XDO offers extended drain intervals, reduced oil consumption and excellent low temperature viscometrics for reduced wear on start up. TOP DOG XDO is recommended for US, European and Japanese four stroke heavy duty diesel engines including the latest generation of highly tuned emission controlled engines including those with exhaust gas recirculation systems and SCR treatment systems. TOP DOG XDO is suitable where extended drain intervals are required (supported by routine oil analysis) and for equipment operating under the most extreme conditions. TOP DOG XDO is also suitable for stationary engines, petrol engines and 4WDs making it an ideal mixed fleet oil. It is suitable for use as a hydraulic oil where a 15w40 is called for and as a transmission oil where the Allison C3/C4 specification is required. TOP DOG XDO is not recommended for engines fitted with diesel particulate filters.