What Needs to Be Replaced in a 20,000 km Maintenance?
2 Answers
For a 20,000 km car maintenance, items such as engine oil, oil filter, air filter, cabin air filter, and spark plugs need to be replaced. Here are the detailed explanations: Reasons for replacing engine oil and oil filter: Replacing engine oil and oil filter is essential. Under the harsh conditions of high temperature and high pressure inside the engine, the shelf life of engine oil is significantly shortened, and its performance greatly deteriorates. Over time, it can no longer protect the engine effectively. The oil filter prevents impurities from mixing into the oil, which can cause oxidation, leading to sludge and clogging the oil passages. Engine oil and oil filter should be replaced simultaneously. Reasons for replacing the air filter: The air filter's role is to block dust and particles inhaled during the engine's intake process. If the filter is not cleaned for a long time, dust can enter the engine, causing abnormal wear on the cylinder walls. If it wasn't replaced during the 10,000 km maintenance, it must be replaced at the 20,000 km maintenance. Reasons for replacing spark plugs: If the car uses standard material spark plugs, preparations should be made to replace them at 20,000 km. Spark plugs directly affect the engine's acceleration performance and fuel consumption. If you feel the engine lacks power during driving, it's time for maintenance.
When the vehicle reaches the 20,000-kilometer maintenance mark, based on my years of driving experience, the essential items that need replacement include engine oil, oil filter, air filter, and cabin air filter. Engine oil acts as the lubricant for the engine, and failing to replace it promptly can lead to increased wear. A clogged air filter can cause higher fuel consumption, while a dirty cabin air filter affects in-cabin air quality—if not replaced, it may result in unpleasant odors when using the AC in summer. Additionally, checking brake pad thickness and tire wear is crucial for ensuring driving safety. I also recommend inspecting coolant and brake fluid levels to prevent sudden malfunctions. Every maintenance session is an opportunity to save money—identifying minor issues early through self-inspection can help avoid costly repairs and extend the vehicle's lifespan.
