Bozhou plus Sinopec or PetroChina

Both will do. PetroChina and Sinopec adopt similar refining processes, but different additives are added. The additives added by Sinopec are mainly imported, with high external mining index and relatively good quality. In fact, whether it is PetroChina or Sinopec, the quality of oil can be guaranteed as long as it is added at a regular gas station.