Why is Castrol covered in synthetic engine oil?

Why is Castrol covered in synthetic engine oil? I can tell you. First, Castrol is a foreign brand, and its quality is superior to most engine oils through years of technology. Second, the engine oil is divided into mineral engine oil and synthetic engine oil, and synthetic engine oil is divided into semi-synthetic engine oil and synthetic engine oil. Synthetic engine oil is undoubtedly the best type of engine oil. To sum up, Castrol synthetic engine oil is a very good engine oil, which can be said to be a very high-end engine oil. Castrol is a recognized expert in lubricating oil in the world. A sub-brand of BP. The success of Castrol is attributed to Charles Cheers Wakefield, who established a professional lubricant company-Castrol in 1899. Castrol's core values are technological pioneer, winning, passion and outstanding performance, which still represent Castrol and are the core strength for its success. Castrol has lubricant production plants in more than 70 countries around the world, and 12 technology research centers in Britain, the United States, France, Germany, Italy, Japan, Australia and other countries to ensure that Castrol lubricants become the most competitive products.