Why Does the Exhaust Pipe of a New Car Rust?

[StAthena]

After being subjected to high-temperature baking, the exhaust pipe of a new car is prone to oxidation and rust. Here are specific maintenance methods for the exhaust pipe: 1. Waterproof: When driving in the rain or going to a car wash, be careful to prevent water from entering the muffler, which can cause rust and affect the exhaust pipe's performance. 2. Rust prevention: Remove the muffler, block the drain hole, add rust-proof oil, and ensure it spreads evenly inside the cylinder before reinstalling the muffler. 3. Cleaning: The exhaust pipe is often exposed to the outside, similar to the car's interior. Accumulated dirt inside can affect normal usage, so it's important to clean the exhaust pipe regularly.