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Certain heavy-duty diesel engine oils can improve fuel economy by reducing frictional and pumping losses.  However, it is critical that the oils also provide the right level of protection to avoid engine wear.

Shell has been at the forefront of development of fuel economy lubricants.  Working in our laboratories and with leading companies and original equipment manufacturers, we have clearly demonstrated the benefits that a high quality fuel economy oil can bring. 

Shell Rimula’s adaptive technology gives outstanding wear protection with reduced viscosity for improved fuel economy.

'E' is for Fuel Economy

With Shell Rimula’s heavy-duty diesel engine oils, the letter ‘E’ on the label stands for ‘Fuel Economy’. Here’s how our various ‘E’-labelled fuels have earned that title

Shell Rimula R6 LME
Developed in close co-operation with leading engine and vehicle makers, Shell Rimula R6 LME not only delivers fuel economy benefits, but also meets the durability and performance demands of the latest low-emissions equipment.

In trials carried out with a fleet of trucks operating for a leading UK supermarket, the customer confirmed that Shell Rimula R6 LME realised up to 2.0% fuel savings over a 100,000 km oil drain interval compared with a typical 10W-40 oil*. More about Shell Rimula R6 LME

*Full copy of report available on request


Shell Rimula R5 LE
In 2009, we conducted a large-scale trial of medium-duty trucks based on city and highway driving patterns. Use of Shell Rimula R5 LE 10W-30 viscosity grade demonstrated fuel savings of up to 1.6% in medium-duty trucks (for highway cycles, compared to conventional SAE 15W-40 engine oil). More about Shell Rimula R5 LE.

Investing in a Shell Rimula R6 ME high quality oil proves more economical in the long run.

Investing in a Shell Rimula R6 ME high quality oil proves more economical in the long run.

Shell Rimula R6 ME
Significant benefits, typically ranging from 2% to over 4% for Shell Rimula R6 ME, have been demonstrated in tests in real on-highway service compared to conventional oils (SAE 15W-40). This can mean lower cost of operation for fleet, bus and coach operators.

The diagram shows examples of the level of fuel savings that have been achieved in various types of vehicles and services using Shell Rimula R6 ME. More about Shell Rimula R6 ME