How to Choose Engine Oil for Cars?
1 Answers
Choose engine oil from well-known brands or large manufacturers. For example, domestic major brands include Kunlun, Great Wall, and Longpan. According to the API classification of engine oil, there are five common types on the market: SG, SJ, SL, SM, and SN. Use 5W-30 oil in winter and 10W-40 in summer.