There are several types of gasoline.

There are seven kinds of gasoline, namely 90, 93, 97, 89, 92, 95 and 98. One common gasoline is automobile gasoline and the other is automobile ethanol gasoline.

1 and 90 # gasoline are gasoline with octane number of 90. Suitable for gasoline vehicles with engine compression ratio below 8.5.

No.2.93 gasoline is gasoline with octane number of 93. Suitable for gasoline vehicles with engine compression ratio of 8.6-9.9.

3.97 gasoline is gasoline with an octane number of 97. It is suitable for gasoline vehicles with engine compression ratio between 10.0- 1 1.5.

No.4.89 gasoline is gasoline with an octane number of 89. The old Jiefang car only used 89 gasoline. There is no 89 gasoline for cars now, and all cars now use at least 92 gasoline.

No.5.92 gasoline is gasoline with an octane number of 92. Suitable for mid-range cars (low compression ratio).

6.98 gasoline is gasoline with an octane number of 98. It is suitable for gasoline vehicles with engine compression ratio above 1 1.6.

Precautions for refueling:

98 # gasoline has the best antiknock performance, and 89 # gasoline has the worst antiknock performance. The higher the octane number, the more expensive the gasoline. The higher the octane number of 98 gasoline, the more expensive it is. However, this does not mean that No.98 gasoline is the best, and gasoline suitable for vehicles is the most suitable. The owner can know what type of gasoline should be added to the vehicle from the tank cover.

No.98 is noble gasoline, and the requirements for vehicles are at a high level. Although high-grade gasoline can obviously improve the power of the vehicle, the compression ratio of the engine needs to be greater than 10. If the compression ratio cannot be met, the power cannot be improved.