Myth 1: "As long as the filter is cheap and fits perfectly on the engine."
Many domestic filter manufacturers will simply copy and imitate the geometric dimensions and appearance of the original parts, but 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 cannot meet the technical requirements and the filtering effect is lost, 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 as often, it's a good filter."
The function of the filter is to filter out the dust and impurities in the air, oil and fuel, keeping these impurities away from the engine, thereby protecting the engine system. High-quality high-efficiency filters can capture and filter out more impurities than low-efficiency, low-quality filters. If the dust holding capacity of the two filters is the same, then it is obvious that the replacement frequency of the high-quality high-efficiency filter will be higher.
Most of the inferior filters sold on the market have filter short circuits (impurities directly enter the engine system without filtering). Unable to pick up. Such filters have no filtering function and therefore do not require replacement.
 
Myth 3: "The filter used didn't cause any trouble, and there's no need to spend extra money on a quality filter."
The effect of an inefficient, poor quality filter on the engine may or may not be immediately visible. The engine appears to be running normally, however, harmful impurities may have already entered the engine system and started causing corrosion, rust, wear, etc. to engine parts.
The damage is recessive and will flare up when the damage accumulates to such an extent that you have to spend a fortune to repair the engine.
 
Myth 4: "The engine is worn out and out of warranty, and there's no need to use a high-quality, premium filter."
Older engines are more prone to wear and tear, resulting in cylinder pull. As a result, older engines require quality filters to stabilize escalating wear and maintain engine performance. Otherwise, you won't need to spend a fortune on repairs, or scrap the engine early.