What gasoline engine oil and diesel oil quality level selection based on what?

Gasoline engine oil quality level selection basis, the main consideration of the engine compression ratio, if there is a positive pressure crankcase exhaust means, whether there is an exhaust gas recirculation device and the exhaust gas catalytic converter and the like. Diesel engine oil quality level selected on the basis, mainly based on the degree of diesel harsh working conditions (usually with strength coefficient K, pressure ratio, the top ring groove temperature shown), emission levels, and with or without exhaust gas recirculation devices. Chinese military specialty oils Group Ltd. is a research and development of international standards, the production of special oil of large-scale integrated chemical enterprises, to adapt to market competition and lubricants needs of enterprise development strategies, Chinese military special oil Group Limited, authorized Shijiazhuang Golden Road Lubricant Co., Ltd. for the Chinese mainland only regional production vendors. Contact: Tel: 0311-80738338 400-6855564 Fax: 0311-66699220 QQ: 524039810 Mobile: 15231181175 Website: http: //www.jblube.net/ E-mail: jinlurunhuayou@163.com