What needs to be replaced during the second car maintenance?
3 Answers
What needs to be replaced during the second car maintenance includes: 1. Engine oil and oil filter; 2. Air filter; 3. Fuel filter; 4. Transmission fluid; 5. Cabin air filter. The second car maintenance refers to secondary maintenance or secondary service, and its inspection items include: 1. Spark plugs; 2. Brake fluid; 3. Throttle valve; 4. Fuel injectors; 5. Tires and braking system; 6. Engine belts; 7. Performance of headlights, warning lights, turn signals and car horn. Car maintenance refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting or replacing certain parts of the car, also known as car servicing.
I worked at a car dealership for several years. For the second maintenance, the essential replacements are engine oil and the oil filter, as old oil can accumulate sludge and wear out the engine. Delaying these changes may lead to cylinder burning or shortened engine life. The air filter should also be replaced to prevent dust from entering the engine, which reduces air intake efficiency and increases fuel consumption. Check the cabin air filter—replace it if there’s a musty smell or if you drive in dusty conditions to improve air quality inside the car. Inspecting the spark plugs is crucial; if there’s heavy carbon buildup from city driving, replacement may be needed to prevent ignition issues. Also, check and adjust tire pressure to ensure even wear, and measure brake pad thickness to avoid dangerous braking inefficiency. Inspect all fluids like brake fluid and coolant levels to prevent leaks and potential hazards. Following the manual for the second maintenance helps preserve warranty coverage and saves on repair costs.
I drive a sedan to save on budget. For the second maintenance, I opt for synthetic oil and an oil filter change to extend the service interval. I usually buy cheaper air filters and replace them myself to save on labor costs. If the cabin air filter isn't too dirty, I just clean it and postpone replacement. After checking the spark plugs and finding no major issues, I skipped replacing them to save money. I follow the shop's recommendation for tire rotation to extend their lifespan. I never skip checking the brake system, including fluid levels, to prevent emergency braking issues. I suggest avoiding unnecessary services like electrical system cleaning, which offer no clear benefits, and focus spending on core maintenance items.
