What maintenance items are essential at 30,000 kilometers?

[McFelicity]

Essential maintenance items for a vehicle at 30,000 kilometers include oil change, oil filter replacement, air filter replacement, fuel filter replacement, throttle body cleaning, and spark plug replacement. Here are the details: 1. Engine Oil: Changing the engine oil and oil filter is mandatory at 30,000 kilometers. Under the harsh conditions of high temperature and high pressure inside the engine, the shelf life of the oil is significantly shortened, and its performance deteriorates, which over time fails to protect the engine. The oil filter prevents impurities from mixing with the oil, which can cause oxidation, leading to sludge and clogging the oil passages. 2. Throttle Body Cleaning: Throttle body cleaning is unnecessary before 30,000 kilometers. If the service advisor at a 4S shop or repair shop recommends this service at 10,000 or 20,000 kilometers, you can directly refuse it.