Is It Normal for the Screws on a New Car's Chassis to Be Rusty?

[LaIvan]

It is not normal. It is recommended to check whether the car purchased is from stock. Additionally, rust can also be related to the local environment. The main reasons for rust on a car's chassis are as follows: 1. Differences in materials and manufacturing processes can easily cause the chassis to rust: Due to factors such as price and brand positioning, it is not always possible to use high-quality sheet metal materials. Furthermore, differences in processes like coating and welding can also lead to 'innate' variations in rust levels. 2. Human factors: This mainly refers to lack of maintenance, such as infrequent car washing, waxing, etc. The tailpipe often accumulates water and is not cleaned. 3. External factors: Some areas have poor environments with exposure to acid rain, corrosive dust, etc. Some places have humid weather and frequent rain, leading to severe chassis rust. Poor road conditions in some areas can also result in frequent chassis impacts or damage from gravel, increasing the likelihood of rust in vulnerable areas like the engine underguard and exhaust pipe.