Core Viewpoint - The establishment of China's first diesel engine oil D1 standard marks a significant step towards breaking the foreign monopoly in the diesel engine oil standardization field, driven by Weichai Power and supported by Shandong Heavy Industry Group [1][2][3] Industry Context - Despite being the world's largest producer of engines and vehicles, China has relied on the American API standard for diesel engine oil, which has limited the country's development and influence in this area [2] - The establishment of the "Engine Lubricating Oil China Standard Development Innovation Alliance" in 2016, involving 42 organizations including Weichai, aims to create a domestic standard that meets China's unique conditions [2][3] Company Involvement - Weichai Power, as a leading enterprise in the diesel engine industry and a core member of the alliance, has taken a proactive role in developing the D1 standard, emphasizing the importance of having an independent standard for the industry [3][4] - The company has organized a cross-departmental team of experts and collaborated with various research institutions to ensure the successful development of the D1 standard [3][4] Technical Development - The WP13 engine has been selected as the core testing platform for the D1 standard due to its performance and suitability for Chinese operating conditions [5][6] - Weichai has invested over 30 billion yuan in R&D over the past decade, with a focus on building national-level strategic technology platforms and a strong team of over 6,000 high-end R&D talents [7][8] Standardization Process - The D1 standard development process has involved nearly a hundred Weichai personnel over the past ten years, with extensive testing and data analysis to ensure the standard meets the needs of Chinese engines [8][9] - Weichai has contributed to the drafting of multiple industry standards and has supported the establishment of a non-profit third-party certification platform to break the foreign certification monopoly [9][10] Impact on the Industry - The D1 standard is expected to enhance the competitiveness of Weichai's products and improve the overall performance of diesel engines in the market, with oil change intervals increasing from 60,000 kilometers to 120,000 kilometers [10] - The successful implementation of the D1 standard will accelerate the independence of China's diesel engine oil industry from foreign standards, positioning Weichai as a key player in this transition [10]

Group 1 - The D1 standard for diesel engine oil, marking a significant breakthrough in China's industrial sector, has been officially released, representing a shift from "standard following" to "standard leading" in the lubricating oil industry [1][4] - The D1 standard addresses the long-standing dominance of the American API standards in China, which lacked standards tailored to the country's complex road conditions and fuel characteristics [2] - Weichai Power, as a core member of the Engine Lubricating Oil China Standard Development Innovation Alliance, played a crucial role in developing the D1 standard by assembling a cross-disciplinary expert team and leveraging resources [2][3] Group 2 - The WP13 engine was selected as the core verification vehicle for the D1 standard due to its ability to simulate extreme operating conditions, providing a solid foundation for the standard [3] - The D1 standard has resulted in significant economic benefits, such as extending the oil change interval from 60,000 kilometers to 120,000 kilometers, thereby reducing operational costs for users [4] - The establishment of the D1 standard has enhanced China's technical discourse power in the industry, allowing for the development of a "native compatible" lubricating oil system for engines in the National VI/VII stages [4]