In accordance with the data of China Internal Combustion Engine Industry Sales Monthly Report released by China Internal Combustion Engine Industry Association(CICEIA), the sales volume of internal combustion engine (or ICE) of the whole country experienced a rapid ring growth in March 2019 due to less workdays in February, wherein the sales of diesel engine increased significantly; compared with the same period last year, the sales of diesel engine increased slightly but the gasoline engine declined sharply. From January to March, the sales of internal combustion engines continued a downtrend, the gasoline engine thereof decreased significantly.