How is the quality of Hainan Guo Sheng oil?

Hainan Guo Sheng oil is of good quality. Hainan Guo Sheng Petroleum Co., Ltd. is jointly owned by China Shipping Supply and Marketing Co., Ltd. and Guangzhou Shipping Company under China Shipping Corporation. A limited liability company mainly engaged in the supply of diesel and fuel oil on land and at sea. The API of Guo Sheng Petroleum is above 30, and the lowest is above 24.7. The less gum and asphaltene content, the more petroleum products can be extracted from it. This means that Hainan petroleum is light oil.