"Development of the industry's first metal-free diesel engine oil that meets JASO DH-2 standard performance" received the 73rd Society of Automotive Engineers of Japan Award "Technology Development Award''

The Society of Automotive Engineers of Japan Award was established in 1951 to encourage the improvement and development of automobile engineering and technology, and recognizes engineers and researchers who have made significant contributions and achievements in automobile technology. Currently, there are six types of awards for each subject, and our employees receive the Technology Development Award, which is given to individuals and joint developers who have developed new products and technologies that are useful for the advancement of automobile technology in the past three years. ” was awarded.

Development of the industry's first metal-free diesel engine oil that meets JASO DH-2 standard performance

To reduce environmental impact, diesel vehicles are equipped with a filter (DPF) ^*1 that collects particulate matter (soot and particles derived from engine oil additives) in exhaust gas. Trapped soot can be burned away, but particles from metal additives remain and clog filters. Therefore, we designed a metal-free engine oil by making full use of uniquely developed additives, without using metal-based detergents or metal-based anti-wear agents, which are considered essential ingredients in conventional diesel engine oil. . This oil was launched on the market after confirming that it passed engine tests and laboratory performance tests stipulated by the JASO DH-2 standard, which is an engine oil standard for trucks and buses equipped with exhaust gas after-treatment devices. This technology has been highly praised for its ability to contribute to improving the working environment by reducing environmental impact and increasing the efficiency of drivers' work during vehicle maintenance and management.

Using this technology, idemitsu AshFree, a phosphorus-free and ash-free diesel engine oil that was released for the first time in the industry in September last year, does not emit ash, which can clog the DPF installed in diesel trucks and buses. , contributes to extending the life of the DPF. This reduces maintenance work (replacement and cleaning), reduces maintenance costs, and reduces mechanic labor hours. In addition, manual regeneration of the DPF ^*2 can be suppressed, contributing to solving the "2024 problem" in the logistics industry by reducing driver waiting time (labor time), and reducing CO2 emissions by reducing fuel usage. Achieve reduction. Since its release, "idemitsu AshFree" has been used by more than 400 customers (as of the end of March 2023), and it has been well received, with people saying, "The number of manual playbacks has been significantly reduced, eliminating stress." ^*3​

Since our founding in 1911, we have continued to focus on ultra-precise designs and refined our lubricant technology. We will continue to use this technological strength to contribute to solving social issues, such as improving labor environments and reducing CO₂ emissions.

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