Core Points - The Shanghai Municipal Market Supervision Administration conducted a quality inspection of engine oil products, with 30 batches tested and no non-compliant products found [1] - The inspection included 11 batches from production, 13 from physical sales, and 6 from e-commerce sales [1] - The sampled products originated from Shanghai, Jiangsu, Shandong, Tianjin, and other provinces, with 16 batches from Shanghai and 14 from other provinces [1] Group 1 - The inspection was based on the SHSSXZ0020-2025 guidelines for engine oil product quality supervision [1] - The quality inspection covered various brands and specifications, including full synthetic and diesel engine oils [1][2] - The inspection results indicate a positive trend in product compliance within the engine oil market in Shanghai [1] Group 2 - The report lists specific products and their details, including production dates, manufacturers, and sales channels [1][2] - Major brands included in the inspection are WURTH, 海疆 (Hai Jiang), and 美孚 (Mobil), among others [1][2] - The findings suggest that the engine oil market in Shanghai is maintaining high standards of quality and compliance [1]