No.97 gasoline in China is equivalent to No.87 gasoline in the United States. An important performance index of gasoline quality is called gasoline antiknock, which is often called "octane number". China and the United States have different rules for setting gasoline grades. American gasoline standards are formulated according to "Motor Law", while domestic gasoline standards are formulated according to "Research Law".
Information about gasoline:
The English name of gasoline is gasoline, which is transparent and flammable and has a distillation range of 30℃ to 220℃. The main components are C5 ~ C 12 aliphatic hydrocarbons and cycloalkanes, and a certain amount of aromatic hydrocarbons. The octane number of gasoline is very high. According to the octane number, it is divided into four grades: 90, 93, 95 and 97.
From 20 12 year 10 month, 12, gasoline grades 90, 93 and 97 should be revised to 89, 92 and 95. Gasoline is a blend of straight-run gasoline, catalytic cracking gasoline and catalytic reforming gasoline obtained from petroleum refining with high octane number components, which is mainly used as fuel for automobile ignition internal combustion engines.