Is it necessary to clean the fuel injectors?

[VanAndrew]

Cleaning fuel injectors is not always necessary. If the fuel quality is good, cleaning may not be required. Here are the specific explanations: 1. If the fuel quality is good, cleaning may not be necessary. If cleaning is needed, it is typically done during routine maintenance after 30,000 kilometers. Replacing the 'four filters'—oil filter, cabin air filter, fuel filter, and air filter—is the most basic maintenance task. 2. Every 5,000 kilometers, the engine oil and oil filter should be replaced, and the air filter element should be cleaned once. Nowadays, many fuels contain cleaning agents, so many vehicle models may not require cleaning or replacement even after 10,000 kilometers. Cleaning fuel injectors helps maintain their smooth operation and prevents clogging caused by gel or carbon deposits. 3. There are two methods for cleaning fuel injectors: non-dismantling cleaning and dismantling cleaning. Currently, non-dismantling cleaning is the most common method in the market. Dismantling cleaning can damage the engine's sealing rings. If a major overhaul requires dismantling cleaning, the sealing rings must be replaced to ensure proper sealing.