Castrol bp20000 is lubricating oil. BP20000 is one of the largest petroleum and petrochemical companies in the world, which is formed by the integration and reorganization of former BP, Amoco, Arco and Castrol. Castrol is a subsidiary of BP, and its oil is also a sub-brand of BP. BP Lubricant and Castrol Lubricant are two products under one company, and Castrol is more advanced. Its magnetic protection brand is one of the top lubricants, and BP pays more attention to small and medium-sized customers, with high quality and low price.