What does a major car maintenance refer to?

2 Answers
LaJosie
07/23/25 8:16pm
Major car maintenance refers to the routine maintenance involving the replacement of engine oil, oil filter, air filter, and fuel filter. The major maintenance items include: 1. Engine oil replacement: Engine oil lubricates and reduces friction in the engine, assists in cooling, prevents rust and corrosion, and provides shock absorption; 2. Oil filter replacement: The oil filter removes debris, gum, and moisture from the oil, delivering clean oil to various lubrication points. Over time, it can become clogged; 3. Air filter replacement: The air filter prevents dust and particles from being sucked into the engine during the intake process. If the filter is not cleaned for a long time, dust can enter the engine, causing abnormal wear on the cylinder walls; 4. Cabin air filter replacement: Not cleaning or replacing the cabin air filter for an extended period can not only contaminate the car's air conditioning system and reduce cooling performance but also affect the health and safety of the occupants.
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DiAiden
08/10/25 6:16pm
I just gave my car a major service last year, which felt like sending it for a comprehensive check-up. This is typically done every 30,000 to 40,000 kilometers or every two to three years, and it's not as simple as a regular oil change. The service includes replacing the engine oil, oil filter, air filter, and fuel filter, as well as checking the spark plugs, brake pads, and tire wear. The mechanic will also test the battery condition, coolant level, and brake fluid, topping up or replacing them if necessary. The goal of a major service is to prevent minor issues from worsening, such as old spark plugs causing poor engine ignition, which could lead to major problems if ignored for long. I noticed the car runs smoother and fuel consumption improved slightly after the service. Before servicing, it's best to check the owner's manual for recommended items and not skip critical inspections to save money.
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