Are There Differences Between Oil Filters?
1 Answers
There are significant differences between high-quality oil filters and cheap ones. The specific distinctions are as follows: 1. Appearance Differences: At first glance, oil filters at different price points may both appear as metal cans, but high-quality filters have a smooth paint finish, while cheap ones have a rough surface. The printing on high-quality filter casings is clear, whereas cheap filters often have blurry text and patterns. Additionally, the packaging of premium oil filters is far superior to that of budget options. The quality of the rubber sealing ring can also indicate the filter's overall quality. High-quality filters feature softer, more elastic rubber seals, ensuring better sealing performance, while cheap filters use harder, less effective materials. 2. Internal Structure Differences: Premium oil filters include a check valve, which cheap filters lack. This check valve, essentially a rubber "bowl," prevents oil backflow. Its design maintains oil pressure in the lubrication system after engine shutdown, allowing quicker achievement of proper oil pressure during cold starts and ensuring timely lubrication of engine components. High-quality filters also have firmly fixed filter elements; gently pressing the element with a finger can reveal its stability, serving as another indicator of the filter's quality.
