Is the engine protective agent necessary? Is the engine protective agent useful?

There are many car maintenance items, and there are many parts that need to be maintained. More attention should be paid to the maintenance of the engine. As the power source of the car, the maintenance is particularly important. In addition to regular oil maintenance, other maintenance is required. When you go to a 4s shop for engine maintenance, you are often advised to use engine protectants. Is an engine protective agent necessary? Are engine protectants useful? Many car owners have these questions, let's take a look at them together.

Engine protection agent

Engine protective agent is also called engine anti-wear protective agent. It can effectively reduce the wear or corrosion of engine components, inhibit the formation of colloidal, sludge and other deposits, and can form a layer on the metal surface with high compressive strength and wear resistance. A good protective layer prevents oxidation, thickening and acidification of engine oil, thereby protecting engine components and prolonging engine life.

Engine protective agent effect

The functions of engine protective agents include anti-wear, lubrication, noise reduction, improvement of engine power and fuel saving, and some can prevent oil burning and have the function of cleaning carbon deposits.

Most engine failures are caused by wear, and wear is the most serious when the engine is cold started. Although lubricating oil can form a protective layer on the metal surface of engine components and reduce wear, if the engine stagnates for a long time, the lubricating oil will naturally deposit in the oil pan. During cold start, due to the lack of oil film protection, the abrasion between the internal metals of the engine will increase, which will damage the engine to a certain extent.

However, the engine protective agent can form a long-term protective film on the internal metal surface of the engine, and will not deposit on the oil pan with the lubricating oil. It can reduce the wear of the engine during the cold start of the car, so as to protect the engine. From this point of view, the engine protectant is very useful. If the car engine is well maintained and the oil used is of high quality, in fact, the engine protectant is not so necessary. However, if you want to give the engine better protection, it is also necessary.