Is it a problem if a little rainwater gets into the fuel tank?

[JaxonLee]

If only a small amount of rainwater enters, there is no need to worry. As long as the car can drive normally without any power loss, it generally won't cause any issues. Here is an explanation of water entering the gasoline tank: 1. Low water content: It won't cause any problems. Gasoline has strong hydrophilic properties and can absorb moisture from the air. Besides water, there are many other impurities in the fuel tank. The water that enters the tank will mix with the gasoline. Even though their densities are different and they don't fully blend, the water won't be drawn into the engine all at once. 2. Large amount of water entry: In this case, all the fuel in the tank can be drained and replaced with water-free fuel. If the car experiences engine shaking or acceleration issues, it's necessary to visit a 4S shop to clean the filter, fuel lines, and injectors. Otherwise, severe cases may prevent the car from starting.