Truck maintenance is 70% maintenance and 30% repair. Only by regularly maintaining all parts of the truck can its lifespan be extended. Therefore, we've compiled several common misconceptions about truck maintenance, and we hope everyone will pay close attention for the safety of their vehicle and themselves!

Many truck drivers believe that truck maintenance can be done whenever they feel like it or when they have time. However, regular maintenance for light trucks is crucial, especially for the engine.

As many professional mechanics have stated, among the trucks they've repaired, 50% of the malfunctions are caused by poor engine maintenance. This demonstrates the vital role engine maintenance plays in extending the vehicle's lifespan.

Therefore, not only should engine maintenance be performed within the regular maintenance schedule, but also after driving through particularly humid or dusty areas, relevant engine components should be inspected and maintained.

Some truck drivers believe that using better engine oil is cleaner and therefore eliminates the need for regular oil filter changes. Different grades of lubricating oil will change in quality during use.

After a vehicle has traveled a certain mileage, its performance will deteriorate, potentially causing various engine problems. When engine oil passes through the fine pores of the oil filter, solid particles and viscous substances in the oil accumulate in the filter.

If the filter is clogged, engine oil cannot flow smoothly through the filter, which may cause the filter to burst or open the safety valve, allowing oil to bypass the filter and carry contaminants back to the lubrication points, accelerating engine wear and exacerbating internal contamination. Therefore, regular replacement of the oil filter is equally important.

Don't add too little engine oil, but don't add too much either. More expensive brand-name synthetic oil is not necessarily better; it is recommended to use the manufacturer-specified oil.

Air filters do not need frequent replacement.

Some truck drivers believe that because the dusty environment during normal driving is not high, the air filter does not need to be replaced for a long time. This is not the case. The engine's intake system mainly consists of two parts: the air filter and the intake manifold.

Therefore, depending on different usage conditions, the air filter should be cleaned regularly. Generally, the air filter should be replaced after three cleanings. The cleaning cycle can be determined based on the air quality of the area where you usually drive. Purchasing high-quality, genuine air filters from reputable manufacturers is also important.

It's not advisable to assume that dust in the intake manifold can be blown out.

If your vehicle frequently travels in dusty areas with poor air quality, you should clean the intake manifold to ensure unobstructed airflow.

The intake manifold is crucial for the normal operation of the engine. If it's too dirty, it will lead to decreased efficiency, preventing the engine from operating within its normal power output range and accelerating engine wear and aging. Minimize driving in dusty areas, and remember to replace the cabin air filter regularly.

The sludge in the crankcase is another area easily overlooked by many drivers. During engine operation, high-pressure unburned gases, acids, moisture, and oxides of sulfur and nitrogen from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls. This sludge mixes with metal powder from component wear, forming sludge.

Small amounts of sludge can remain suspended in the oil, but when the amount is large, it precipitates out, clogging filters and oil passages, causing lubrication difficulties and accelerating engine wear.