The difference is that the octane number is different, the height of the label only indicates the size of the octane number of the gasoline, and the determination of the octane number of the gasoline is based on isooctane and n-heptane as the standard fuel, so that the knock strength generated is the same as that of the specimen, and the volume percentage of isooctane in the standard fuel is the octane value of the specimen.
In fact, 92, 95, 98 these three kinds of car gasoline base oil prices are not a little different, do not think that the price of 98 is so much more expensive than 92, but the oil is all the same, and the only difference depends on the three models of specifications of the gasoline gasoline increased by the gasoline octane number. In simple terms, it is shock resistance, that is, flame resistance.
Vehicle gasoline for No. 92 is more flammable, while No. 98 gasoline is less flammable. So you see, the car that adds 95 or 98 is generally all high-end cars, high-power cars, and all of them are turbochargers, or double-pressure, multi-steel car series. If you drive a high-power car often in the urban area to run slowly, in fact, the ignition of gasoline and diesel is not complete, it will cause carbon deposits.
Gasoline engines and diesel engines are all gas turbines, which means that the electric energy is ignited inside the car engine itself rather than outside. However, there is also a big difference between the gasoline engine and the diesel engine, because the vehicle gasoline has the physical and chemical characteristics of the ignition point, so the fire nozzle must be used to attract the gas gas - the vehicle gasoline mixture at a special time (the diesel engine will be automatically ignited when it is reduced), when the reduced gas - the vehicle gasoline mixture is ignited too early, the gasoline engine will cause the engine to detonate, and the detonation will destroy the car engine, because it will cause the working pressure in the engine combustion chamber to rise rapidly. It also accumulates suboptimal chemicals in car engines, which in turn endangers the characteristics of automobile engines.