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Increasing pressure to deliver vehicle fuel efficiency without compromising engine durability places significant demands on engine lubricants. The antiwear capability of the formulation is extremely important as wear on engine parts can lead to engine inefficiency. The rapidly advancing and diversifying array of engine architectures creates ever more arduous conditions under which lubricant additives must perform. The evolution of engine design brings with it the propensity for a variety of wear mechanisms to occur. This paper reports research conducted to rapidly collect key information from which to begin to conceive the design of better screening technologies. An exploration of wear mechanisms using simple bench-top experiments was conducted using a variety of lubricants. A lab based oil-aging technique was used to attempt to create an oil sample with wear properties mimiking those of real engine drains.

The global commitment to reduce CO2 emissions drives the automotive industry to create ever more advanced chemical and engineering systems. Better vehicle fuel efficiency is demanded which forces the rapid evolution of the internal combustion engine and its system components. Advancing engine and emission system technology places increasingly complex demands on the lubricant. Additive system development is required to formulate products capable of surpassing these demands and enabling further reductions in greenhouse gas emissions. This paper reports a novel method of generating fundamental structure-performance knowledge with real-world meaning. Traditional antiwear molecule performance mechanisms are explored and compared with the next generation of surface active additive system (SAAS) formulated with only Nitrogen, Oxygen, Carbon and Hydrogen (NOCH).