Japanese lubricant blender Idemitsu Kosan developed an ash-free heavy-duty diesel engine oil with no metallic detergents while maintaining anti-wear performance, the company claimed recently.
The product, Idemitsu AshFree, is a phosphorus-free, ash-free engine oil with no metallic detergents or zinc dialkyldithiophosphate. “Based on our findings, it is the first ash-free diesel engine oil in Japan,” a spokesperson told Lube Report.
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Globally, ashless engine oils are more commonly formulated for use in engines powered by natural gas and in diesel railroad locomotive engines. Examples of applications include stationary industrial engines powered by synthetic or natural gas, naturally aspirated and turbocharged 2-cycle natural gas engines and light-duty 4 cycle engines.