According to the data provided by the American Energy Foundation, motor vehicles in China consume 85% of the country's total oil production. China consumes about 5.4 million barrels of oil every day. Among them, gasoline accounts for 26%, refined oil (including diesel, jet fuel and kerosene) accounts for 33%, and fuel oil accounts for 12%.

Gasoline is a volatile and flammable hydrocarbon mixture liquid fractionated and cracked from petroleum, which can be used as fuel. The appearance is transparent liquid, flammable, and the distillation range is 30℃ to 220℃. The main components are C5 ~ C 12 aliphatic hydrocarbons and cycloalkanes, and a certain amount of aromatic hydrocarbons. Gasoline has a high octane number (anti-knock combustion performance), which is divided into 89, 90, 92, 93, 95, 97 and 98 according to the octane number.