What are the symptoms of a faulty oil filter?

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Oil filter failure symptoms include: oil light activation, poor lubrication, oil burning, etc. Here is relevant information: 1. The oil filter, also known as the oil element, is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles from the oil to protect the engine. Oil filters are divided into full-flow and bypass types. The full-flow filter is connected in series between the oil pump and the main oil passage, thus filtering all the lubricating oil entering the main oil passage. The bypass filter is connected in parallel with the main oil passage and only filters part of the lubricating oil delivered by the oil pump. 2. Under normal circumstances, various components in the engine are lubricated by oil to function properly. However, metal shavings generated during component operation, incoming dust, oxidized carbon deposits under high temperatures, and some moisture will continuously mix into the oil. Over time, the service life of the oil will be reduced, and in severe cases, it may affect the normal operation of the engine.