Nulon APEX+, with Advanced Fluid Dynamics, dramatically improves engine oil flow efficiency to reduce power-robbing friction and maximise engine performance when you need it. Responding to driving inputs, Nulon APEX+ flows faster at low temperatures and resists extreme pressure, heat and wear of contacting metal surfaces to promote ultimate performance, fuel efficiency and protection in both everyday stop/start and the most demanding driving conditions. Nulon APEX+ 10W-40 Heavy Duty Performance engine oil has been developed with the latest world-class additive technology to provide unsurpassed heavy-duty performance and protection for vehicles in high-heat and high-load driving conditions. The advanced formulation offers ultimate high-temperature protection and shear stable performance over extended service intervals.