What Are Some Good Methods to Deal with Rusty Exhaust Pipes?
2 Answers
Methods to prevent exhaust pipes from rusting are as follows: 1. Apply anti-rust coatings. 2. Drill holes at the tail end of the exhaust pipe. 3. Replace with stainless steel exhaust pipes. 4. Pay attention to road conditions. Avoid driving on saline-alkali or muddy roads, and try to choose suitable routes. 5. Choose parking spots wisely. It's best not to park outdoors, especially at night, as dew can easily condense on the exhaust pipe. Without high temperatures to evaporate the moisture, corrosion is more likely. Therefore, parking in an underground garage is ideal. 6. Avoid short-distance driving. Short trips prevent water inside the exhaust pipe from being discharged in time, making the pipe highly susceptible to oxidation.
Seeing rust on the exhaust pipe is really annoying. My car is five years old, and the exhaust pipe joint has already rusted through. If the rust isn't too severe, first clean off the rust with a wire brush, then spray on a layer of high-temperature anti-rust paint—this can be done for just a few dozen bucks at an auto parts store. Coastal areas are especially prone to rust, so I've made it a habit to ask the car wash staff to rinse the exhaust pipe area thoroughly each time. Also, try not to park in damp places all the time, and wash the undercarriage as soon as possible after driving on muddy roads after rain. If the rust has caused leaks, then you'll have to replace the pipe—stainless steel ones are more expensive but much more durable. Remember to regularly check the exhaust pipe hangers; worn rubber mounts can accelerate vibration and rust.
