Lubricating oil plays a very important role in car driving. There are countless brands of lubricating oil, which makes consumers wonder which one to choose. Let’s take a look at the introduction below! Brand introduction 1: Shell Royal Dutch Shell Oil Company, a major lubricant supplier at home and abroad, a global energy and chemical group, one of the top ten petrochemical brands, Shell Co., Ltd.). Brand introduction 2: Mobil Mobil was founded in the United States in 1882. It is the world's largest private oil and gas producer, a large multinational group company, a world-famous brand, ExxonMobil Investment Company). Brand introduction 3: Great Wall Lubricant is a famous trademark of Sinopec Beijing, participated in the formulation of synthetic brake fluid industry standards, a world-renowned lubricant production and marketing group, Sinopec Lubricant Co., Ltd.). Brand introduction 4: Kunlun Kunlun lubricant top ten brands, a professional lubricant company under PetroChina, integrating production/RD/sales/service, PetroChina Lubricant Branch). The above are the lubricants of the four major well-known brands. Friends in need can consider it. Only by choosing the right lubricant can the service life of the machine be extended, so the quality of the lubricant is very important!