Is Engine Protectant Necessary?

2 Answers
OVictoria
07/25/25 1:02am
Engine protectant can form a long-term protective film on the internal metal surfaces of the engine, which does not deposit into the oil pan with the lubricating oil. It helps reduce engine wear during cold starts, thereby protecting the engine. From this perspective, engine protectant is indeed necessary. Here is an introduction to engine protectant: 1. Introduction to Engine Protectant: Engine protectant, also known as engine anti-wear protectant, is a maintenance agent that effectively reduces wear or corrosion of engine components, inhibits the formation of deposits such as gum and sludge, and forms a protective layer with high compressive strength and excellent wear resistance on metal surfaces. It prevents oil oxidation, thickening, and acidification, thereby protecting engine components and extending engine life. 2. Functions of Engine Protectant: The functions of engine protectant include anti-wear, lubrication, noise reduction, improving engine power, and saving fuel. Some products can also prevent oil burning and have carbon deposit cleaning functions.
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VincentLee
08/10/25 4:00pm
I've been driving for over 20 years and have tried engine protectants several times, but I really don't think they're necessary for regular use. Unless you're driving an old clunker or constantly doing long-distance trips or climbing hills, it's basically a waste of money. Good quality engine oil with regular changes is sufficient - modern oil formulations already contain protective components, and adding extra additives may not provide any additional benefits. Instead of spending money on these during maintenance, it's more practical to upgrade to full synthetic oil or ensure your filters are clean. I've seen friends who swear by these products, yet their cars still develop problems - it mainly comes down to driving habits and timely maintenance. They're not environmentally friendly either; too many chemical additives that aren't properly disposed of can cause pollution. Anyway, I've given up on them.
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