What happens if the air filter is not replaced for a long time?
2 Answers
Not replacing the air filter for a long time can accelerate engine wear, shorten the engine's service life, and in severe cases, may even lead to cylinder scoring. The air filter is a device that removes particulate impurities from the air. When piston machinery (such as internal combustion engines, reciprocating compressors, etc.) operates, inhaling air containing dust and other impurities will exacerbate component wear. Therefore, it is essential to have an air filter installed. Air filters are primarily used in pneumatic machinery and internal combustion machinery, providing clean air to these mechanical devices to prevent them from inhaling air with impurity particles during operation, thereby reducing the likelihood of increased abrasion and damage.
I drove my car for three years without changing the air filter, and later noticed it was getting sluggish during acceleration and the engine would whine powerlessly when climbing hills. Upon inspection, I found the air filter was completely clogged with dust, severely restricting airflow and making the engine struggle terribly. Fuel consumption also skyrocketed, costing me dozens of extra dollars in gas each month—enough to buy a bottle of engine oil. Worse yet, those tiny dust particles sneaked into the cylinders, gradually wearing down the pistons and cylinder walls. Over time, the engine might need a major overhaul. A friend of mine had to pay $800 for repairs after the engine warning light came on due to this issue. It’s recommended to replace the filter every 10,000 km or once a year. Buying one and swapping it yourself takes just over ten minutes, and the car will immediately feel revitalized. Don’t underestimate this—city dust builds up fast, and skipping replacements will lead to regret.
