Top Dog XDO 5W-40 is a synthetic multi-grade heavy-duty engine oil that meets some of the latest and highest engine oil performance specifications. The combination of premium quality base stocks and the latest technology performance additives results in an engine oil of supreme capabilities. Top Dog XDO 5W-40 provides excellent soot control, easy cold-weather start-up, high levels of wear protection under full load and high speed operations. Top Dog XDO 5W-40 has been formulated to meet the needs of new generation low-emission diesel engines operating on low-sulphur fuel, as well as those older engines running on high-sulphur diesel.

Top Dog XDO 5W-40 is recommended for high performance diesel and gasoline engines, naturally aspirated or turbo-charged where either API CI-4, CH-4, CG-4, CF, SL or earlier performance standards are called for.

Top Dog XDO 5W-40 is suitable for many on and off-highway applications including construction, forestry, mining, marine and for stationary engines including those used for power generation. The high TBN reserve of Top Dog XDO 5W-40 makes it suitable for use with both low or high sulphur fuels and in engines operating high levels of EGR.