What are the disadvantages of engine circuit protectants?
1 Answers
There are three main hazards associated with engine circuit protectants. Determining required specifications: Before the blending and production process of engine oil, hundreds to thousands of laboratory tests are conducted to develop an excellent laboratory formula. Various driving tests and challenging experiments are also performed on engines, followed by data analysis, to determine whether the oil can meet the requirements of that particular engine. In other words, the oil formula is already well-established before blending and production, ensuring optimal engine protection. Function of anti-wear agents: The main components of engine protectants are anti-wear agents, primarily composed of sulfur, phosphorus, and molybdenum. Sulfur, when added to engine oil, undergoes a series of chemical reactions during high-temperature engine operation, inevitably generating some acidic substances that can directly corrode the engine. As for phosphorus, current national standards have explicitly limited its content in engine oil because phosphorus can cause poisoning of the three-way catalyst. Finally, molybdenum, while an excellent anti-wear element, has a significant drawback: poor solubility. Excessive amounts of molybdenum can precipitate from the oil, forming impurities. Engine protectants disrupt the original oil formula's effectiveness: Engine oil undergoes numerous laboratory and driving tests before leaving the factory, making it a mature product. Adding engine protectants to the oil inevitably alters its original performance and may even disrupt the established formula system.
