Is It Normal for a Car Chassis to Rust?

[LaAmara]

It is normal for a car chassis to rust, and the specific reasons are: 1. The chassis is exposed to the air and driven on the road, suffering from mud and water erosion, making rust inevitable; 2. The original car lacks proper protection, especially in low-end vehicles, where surface treatment is often done perfunctorily, leading to faster rusting. However, rust on the chassis is not a major issue because those areas are thick and sturdy, generally not causing any significant impact. Typically, if the car does not have undercoating, cleaning it once a week is sufficient to keep it in good condition for several years. Conversely, if undercoating is applied but the surface treatment is not done carefully, it may trap moisture, making rust more likely.