Shell Rimula R1 40 – Monograde Diesel Engine Oil

Shell Rimula R1 40 is a trusted monograde heavy-duty diesel engine oil formed to deliver reliable, consistent lubrication in both automotive and industrial applications. With high-performance additives built in, it offers excellent wear protection and dependable, all-season performance.

Ideal for moderately rated non-turbocharged diesel engines—such as those in compact trucks, agricultural tractors, commercial vehicles, and fixed machinery—this oil supports long-term engine health. Due to its stable viscosity (≈126 cSt @ 40°C; 13.5 cSt @ 100°C) and viscosity index of 102, it retains fluid integrity across varying operating temperatures.

As a monograde, Rimula R1 40 also suits certain transmission and mobile hydraulic systems if specified by equipment manufacturers, giving it added versatility. Classed under API CC and SC, it fulfills legacy diesel protection requirements and ensures smooth power delivery even under basic working conditions.

In summary, Rimula R1 40 is a straightforward, cost-effective solution for diesel engine maintenance—providing steady protection, clean operation, and broad compatibility for standard load applications.