Myth # 1: "Filters are cheap and fit well on the engine."
Many domestic filter manufacturers will simply copy and imitate the geometric size and appearance of the original parts, and pay no attention to the engineering standards that the filter should meet. The filter is designed to protect the engine system. If the performance of the filter can not meet the technical requirements and lose the filtering effect, then the performance of the engine will be significantly reduced and the service life of the engine will be shortened.
Myth # 2: "If you don't have to change the filter often, the filter must be good."
The function of the filter is to filter out dust and impurities in the air, oil and fuel, so that these impurities are away from the engine, thus protecting the engine system. High quality and high efficiency filters capture more impurities than low quality filters. If the ash capacity of the two filters is the same, then it is obvious that the replacement frequency of high-quality and efficient filters will be higher.
Most of the inferior filters sold on the market have a short circuit of the filter (impurities enter the engine system directly without filtering), and the short circuit is caused by the perforation of the filter paper, the end of the filter paper is not bonded or not bonded well, and the filter paper is not bonded well with the end cap. Such filters have no filtering function and therefore do not need to be replaced.
Myth # 3: "The filter you use doesn't cause any trouble, so there's no need to spend more money on a quality filter."
The effects of low-quality filters on the engine may or may not be immediately visible. The engine seems to be running normally, but harmful impurities may have already entered the engine system and began to cause corrosion, rust, wear and so on.
The damage is hidden, and when the damage accumulates to a certain extent, it will explode, so that it will have to spend a lot of money to repair the engine.
Myth 4: "The engine is old, out of warranty, there is no need to use a high-quality filter."
Older engines are more prone to wear and tear, causing cylinders to pull. Therefore, older engines need high-quality filters to stabilize the gradual wear and tear and maintain the performance of the engine. Otherwise, you will not need to spend a lot of money to repair or scrap the engine in advance.