What are the three filters in car maintenance?
4 Answers
Car maintenance three filters refer to the oil filter, air filter, and fuel filter. The air filter's function is to filter the air before it enters the cylinder, removing impurities, dust, sand, and other foreign particles. The fuel filter's role is to filter out solid contaminants such as iron oxide and dust, as well as water, from the gasoline. The oil filter's purpose is to remove various impurities from the engine oil, ensuring the proper functioning of the lubrication system. The first car maintenance is usually required within 5,000 kilometers or three months, and most vehicles come with a free first maintenance service. During the first maintenance, the engine oil and filters should be replaced, fuel cleaning additives should be added, and the engine cooling system, coolant level, and electric system cooling system should be checked. Other components and fluids should also be inspected.
I drive frequently, so the 'three cleanings' maintenance is essential for my daily car care. It includes cleaning the air filter, replacing the oil filter, and the fuel filter. The air filter is responsible for filtering dust and debris from the intake air; the oil filter ensures the engine oil stays clean, reducing wear; while the fuel filter screens out impurities in the fuel to prevent clogs. After each maintenance session, the car feels more powerful, fuel-efficient, and gives me peace of mind. If neglected, a clogged air filter can reduce intake efficiency, causing the engine to lack oxygen and shudder; a failed oil filter allows contaminants into the engine, accelerating part wear and potentially leading to repair costs in the thousands; an aged fuel filter may also cause uneven fuel supply, increasing the risk of breakdown. I’ve learned to replace the air filter myself to save money, but for the others, it’s best to visit a professional shop—recommended every 5,000 km or six months—to avoid roadside issues. Paying attention to these small tasks helps the car last longer and reduces repair hassles, making it really practical.
When I first learned to drive, I didn't understand what the 'Three Filters' meant. Later, I figured out it refers to the three basic car maintenance items: air filter cleaning, oil filter replacement, and fuel filter replacement. Simply put, these are all filters. The air filter protects the engine's intake tract from dust clogging; the oil filter removes impurities during oil circulation to ensure smooth lubrication of components; while the fuel filter guarantees clean fuel and prevents dirt from entering the injection system. Regular maintenance of these is crucial—each service costs just around 100-200 yuan, but neglecting them may lead to increased fuel consumption, reduced power, or even engine damage requiring expensive repairs. As a novice, I now make sure to perform the Three Filters maintenance every 5,000 kilometers at certified repair shops, having them inspect tires, lights, etc., to minimize unexpected issues. Developing this habit keeps my car in stable condition and boosts driving confidence without worrying about minor faults disrupting trips.
Having driven for over 20 years, I believe the three critical maintenance items are super important: cleaning and replacing the air filter, oil filter, and fuel filter. Once the air filter gets dirty, insufficient air intake can make the engine feel sluggish and cause fuel consumption to skyrocket. If the oil filter ages and isn't replaced, accumulated impurities can accelerate engine wear and shorten its lifespan. A faulty fuel filter can lead to fuel impurities clogging the system, potentially causing fuel supply interruptions and breakdowns. When I was younger, I tried to save money by skipping these and ended up paying hundreds for repairs. Now, I schedule inspections every six months for regular maintenance—spending a little money upfront saves a lot of hassle. For daily care, I recommend going to professional shops for reliability. Don’t just focus on saving money; keeping your car in good condition is about safety first.
