How about Wei Chai oil?

Wei Chai engine oil is good. Wei Chai Engine Oil has a special engine oil suitable for all ambient temperatures. Using original engine oil can improve engine performance and prolong service life. Shandong Ourun Oil Products Co., Ltd., established in 2005, is a wholly-owned subsidiary of Weichai Power Co., Ltd., mainly engaged in special engine oil for Weichai Power. Its products cover vehicle lubricating oil, gear oil, gas engine lubricating oil, vehicle urea solution, antifreeze, hydraulic oil, hydraulic transmission oil, grease and other products, providing our customers with high-quality and characteristic services.