For cars and trucks, an oil filter is a critical component that serves to protect the engine and improve fuel combustion efficiency. Its main purpose is to remove impurities and contaminants from the engine oil, ensuring that the gasoline entering the engine is clean and does not cause engine wear.

What can an oil filter do?

When the engine is running at high speeds, solid particles such as metal shavings, particles, and debris, as well as combustion residues, water, and oxidation substances can be produced in the fuel in the engine compartment. 

If these contaminants are not effectively filtered and removed, they will continue to circulate within the engine, significantly reducing the fuel efficiency of the vehicle's engine. Over time, this can also lead to a decrease in the engine's lifespan.

The structure of an oil filter

An oil filter filters the oil through its internal filter element. The filter element is usually made of fiber material and has small pores and a mesh-like structure that can prevent solid particles and contaminants from passing through. When the engine is running, the oil passes through the oil filter, and the filter element captures solid particles and contaminants while allowing clean oil to flow back into the engine to lubricate and cool the engine's various components.

The pressure valve function of an oil filter

If the engine has just started and does not yet have sufficient temperature and fluidity, the oil filter will automatically close. This is to prevent engine damage due to a lack of lubrication. When the oil temperature rises and fluidity increases, the oil filter opens and operates normally, ensuring that the engine receives clean oil.

The need for timely oil filter replacement

The filter element in an oil filter is a consumable item. Over time, the oil filter can become clogged, leading to various issues:

1. Excessive impurities in the oil filter can cause blockages and affect the smooth flow of gasoline, resulting in insufficient lubrication of the engine.

2. A deteriorating filtering function can accelerate engine wear and bring the engine closer to the point of being scrapped.

Therefore, it is essential to replace the oil filter regularly. Prolonged use without replacing the oil filter can result in decreased engine efficiency and accelerated engine aging