What's the smell of gasoline in the cab of the van?

What's the smell of gasoline in the cab of the van? The following reasons may cause gasoline smell in the cab of the van: 1. The aging or uneven rubber gasket of the fuel tank cover leads to gasoline leakage. This can be directly exchanged for a new one. 2. The dirt on the fuel injector and throttle valve has not been cleaned for a long time, resulting in insufficient gasoline combustion. Regular cleaning is recommended. 3. The gasoline filter is dirty or the connecting hose joint is loose and aging, which also needs to be replaced.