Why is the salary of gas filling staff higher than that of gas filling staff?

Different dangers, different operation difficulties.

1. Different risks: The working environment of the gas filling machine is more dangerous than that of the gas filling machine, because the gas filling machine needs to handle high-pressure gas, while the gas filling machine handles liquid. Relatively speaking, oilers are more risky and need higher wages to offset this risk.

2. Operation difficulty: The operation difficulty of the aerator is higher than that of the oiler. Because the aerator needs to control high-pressure gas, it requires higher skills, and there are fewer filling stations than gas stations, so the salary of the aerator is higher than that of the oiler.