How often should the gasoline filter be replaced? Have you been taken advantage of?

How often should the gasoline filter be replaced?

Let me state the conclusion first: The gasoline filter can be left unreplaced all the time. It should be replaced when it breaks down.

Next, I'll explain the reasons: There are impurities such as iron oxide and dust in the gas and oil. These things are all relatively hard. If they enter the cylinder, they will cause abnormal wear of the engine or clog the fuel injectors.

So a gasoline filter (air filter) was added to filter out these impurities. Using a gasoline filter beyond its service life will not reduce its filtration efficiency. If anyone tells you that if you don't replace the gasoline filter on time, iron oxide and dust will leak through and damage the fuel injectors or cylinders, they are lying to you. The longer the filter is used, the higher its filtration efficiency will be. It's not that it gets lower and lower, but that it gets higher and higher.

This principle is quite simple. The more impurities the filter paper captures, the smaller the gaps in the filter paper become. The gap was blocked by impurities. Not only the gasoline filter element is like this, but also the oil filter element, air filter element and air conditioning filter element are based on this principle.

So, if the filtration efficiency doesn't decrease, why replace it? Because the filtration resistance has increased, the increase in the filtration resistance of the air filter will reduce power and increase fuel consumption.

An increase in the resistance of the oil filter will affect lubrication, and an increase in the resistance of the gasoline filter will reduce the fuel supply pressure of the gasoline, which will cause you to have no power when you accelerate suddenly. This is the key point. The consequence of using the gasoline filter beyond its service life is that you need to supply a large amount of fuel, and it will fail when you accelerate suddenly. There will be no other consequences.

So at the beginning, I said that the gasoline filter element can never be replaced as long as you can tolerate the decline in power at high speeds!

In fact, for the vast majority of people, this decline in motivation may not be felt at all and they may not be able to drive it out.

The reason why the maintenance manual of the vehicle manufacturer requires regular replacement is to maintain good performance throughout the entire life cycle.

Some gasoline pumps are controlled by dedicated oil pump computers. When insufficient oil pressure is detected, it will adjust the rotational speed by itself and increase the fuel supply. When it reaches a certain range, it won't adjust anymore because it has an upper limit! The replacement cycle of this kind will be longer.

In summary, if you don't care about the performance during high-speed and rapid acceleration, the gasoline filter element can remain unchanged for a long time.