D1 specification released! Copton CK-4 series diesel engine oil, providing comprehensive protection for "Chinese engines", ensuring smoother and more efficient driving!

<p> </p><p style="text-indent: 2em;">D1 is the first domestically-developed diesel engine oil specification in China, featuring significant local technological characteristics and having milestone significance in the industry.</p><p style="text-indent: 2em;">Copton, as one of the core members of the &quot;China Engine Oil Standard Development and Innovation Alliance (CLSAC)&quot;, together with other members of the alliance, through extensive basic research, technical promotion and verification tests, completed the development of the first D1 specification with complete independent intellectual property rights.</p><p><br/></p><p style="text-indent: 2em;">During the development of the D1 specification, over 60,000 hours of bench tests were completed, 3,300 tons of fuel were consumed, and more than 30 &quot;critical technology bottlenecks&quot; were successfully overcome. This completely broke the long-term reliance on international standards such as API, marking a historic leap for the Chinese lubricant industry from &quot;following standards&quot; to &quot;leading technology&quot;.</p><p><br/></p>