Good quality. Sakura engine oil uses Cosmo base oil, the third largest oil company in Japan. The entire series uses Cosmo Category 4 plus ester base oil, which also contains organic molybdenum components. Patented technology super molecular superposition fluid technology, effective and powerful lubrication, friction technology adjuster + The excellent formula of special carbon stone agent makes the fuel burn more fully, effectively reduces fuel consumption by 6% to 10%, and is highly energy-saving. In addition, Sakura engine oil has also passed the inspection of the General Administration of Quality Supervision, Inspection and Quarantine and the international ISO9001 certification. It is of good quality and has Good maintenance can make the car have good lubrication.