What Maintenance Items Are Needed After Buying a Used Car?

[ElliotRose]

Here are the maintenance items required after purchasing a used car: 1. Check the engine oil. Inspect the viscosity and glossiness of the oil to ensure they are normal, and replace the oil and oil filter based on the vehicle's usage. 2. Check the coolant. Open the reservoir to see if there are any impurities and if the coolant level is normal. 3. Inspect all four tires for normal wear. Replace them if they are severely worn. 4. Check the throttle valve, spark plugs, air filter, engine undercarriage, power steering fluid, brake fluid, etc. 5. Inspect the belts. Look for any cracks in the belts; for older vehicles, it is recommended to replace them. 6. Check for carbon buildup on the spark plugs and replace them as needed. 7. If the vehicle has driven over 100,000 kilometers, it is advisable to replace the transmission fluid. 8. Check the brake pads and brake discs to see if they need replacement.

[SanAriel]

Every time I buy a used car, I perform a comprehensive maintenance to ensure stable operation. First, I change the engine oil and oil filter, as the previous owner might not have maintained them on time, which can easily lead to carbon buildup in the engine. I check tire wear and pressure—uneven wear may require a wheel alignment or replacement. The braking system must not be overlooked; if the brake pads are too thin, they should be replaced immediately—don’t skimp on this expense, as it can be dangerous at high speeds. A clogged air filter can reduce intake efficiency and increase fuel consumption, so it’s advisable to clean or replace it. The battery condition should be tested with a multimeter; if the voltage is too low, the car may break down unexpectedly, so it’s best to have a spare ready. All lights, including headlights and turn signals, should be checked one by one—any defects should be repaired immediately to enhance nighttime driving safety. Finally, I take the car to a repair shop for an OBD scan to diagnose hidden faults. After a full maintenance, the car runs much smoother and its lifespan is extended.

[AlanLynn]

As an average car owner, I recommend a few simple maintenance steps after purchasing a used car to ensure driving peace of mind. Changing the engine oil and filter is fundamental - if you're unsure about the previous owner's records, it's best to replace them with fresh oil to avoid residual impurities. Tire inspection should include checking proper inflation pressure and tread wear patterns; replace or rotate them if severely worn to balance out wear. Test the brakes practically - if the stopping distance is too long, check the fluid and pads. The air filter can be removed for cleaning or replacement at low cost, yet it significantly improves AC airflow. Don't forget to test all lighting systems - make sure turn signals and brake lights function properly, as fixing minor issues early prevents major troubles. If on a tight budget, start with these basics and follow up with regular maintenance tracking - this keeps overall costs reasonable while avoiding roadside breakdown headaches.

[Joel]

Economical maintenance is my preferred method for taking over a used car, saving both time and money. Changing the engine oil and oil filter by myself is simple, with materials bought online and basic tools, done in just an hour. Check tire pressure and tread wear; if it's too deep, consider replacing them with second-hand tires to avoid waste. Measure the thickness of brake discs and pads; if they're too thin, buy replacement parts online for a low cost. Clean or replace the air filter regularly to prevent engine power loss. Use free battery testing services, like those at auto repair shops, to ensure normal startup. Adjust the angle of the lights yourself to ensure compliance. Handling these small issues with DIY not only hones your skills but also saves expenses, ensuring the car runs reliably daily and avoids costly major repairs.