What are the differences between gasoline grades?

[Elisa]

Gasoline contains different proportions of isooctane and n-heptane. The introduction and usage precautions of gasoline are as follows: Introduction to gasoline: Gasoline is a volatile and flammable hydrocarbon mixture liquid distilled and cracked from petroleum, which can be used as fuel. Precautions for gasoline use: Gasoline is somewhat toxic, so do not siphon gasoline by mouth and try to avoid inhaling gasoline vapors. Pay attention to the quality changes of gasoline during long-term storage, especially to prevent it from aging. When driving in high-temperature areas during summer, vapor lock may occur in the engine. It is necessary to enhance engine cooling and ventilation, and if necessary, take heat insulation or water dripping measures to cool the fuel pump and fuel inlet pipe.