Are Engine Oil Additives Useful?

[MacLeila]

Engine oil additives are useful. To provide additional performance, engine oil additives require the use of different chemical components to enhance the oil's properties. Essentially, engine oil additives are chemical agents that, through the inclusion of various chemical compounds, offer functions such as anti-wear, engine cleaning, and anti-corrosion and rust prevention. The roles of engine oil additives include: 1. Helping to keep engine components clean by suspending dirt, thus preventing the formation of harmful deposits that could damage metal parts; 2. Absorbing heat and utilizing the principle of heat transfer—engine oil contacts the oil pan and splashes to various corners inside the engine block, cooling engine components through temperature reduction during the oil circulation process; 3. Acting as a dynamic seal to reduce byproduct contamination of the lubrication system caused by combustion, such as between piston rings and cylinder walls; 4. Reducing vibration to help prevent wear; 5. Preventing corrosion of engine components by neutralizing corrosive substances through chemical reactions or forming a barrier between engine parts and corrosive materials; 6. Transmitting energy, such as in hydraulic systems or valve lifters in automotive engines.

[SanMackenzie]

Regarding engine oil additives, I have quite a bit of experience to share. For regular family cars, there's really no great need to add them, as modern oil formulations are already quite complete, and there's no need to spend extra money on additional additives during normal maintenance. However, in certain special cases, such as older cars with severe engine carbon buildup or high-mileage vehicles that frequently travel long distances, using cleaning or anti-wear additives can indeed help alleviate oil burning issues. I've seen many cases in car clubs where engine noise does decrease after adding these products. But it's important to choose reputable brands, as off-brand products might clog the oil passages instead. Additionally, some high-end lubricants already contain additive components these days, so adding more would just be a waste of money.

[KiraLee]

As a veteran driver with twenty years of experience, I think it depends on the situation. If your car has just been serviced and the engine oil is fresh, don't bother with additives—it's just a waste of money. But for my old Passat, which has run over 150,000 kilometers and started burning oil last year, adding a bottle of anti-wear additive actually helped. However, be aware that the market is flooded with mixed-quality additives. I recommend buying from well-known manufacturers; although they're more expensive, they're more reliable. Remember, additives can't replace regular oil changes—maintenance is still essential. They just serve as the icing on the cake.

[AbigailLee]

Engine oil additives are not essential but can be beneficial under specific circumstances. Modern engine oils already contain basic additives that perform fundamental functions such as lubrication and cleaning. Additional additives serve supplementary purposes: detergents can remove carbon deposits from piston rings, anti-wear agents reduce cylinder wall wear, and seal conditioners help mitigate oil consumption. Their effectiveness depends on the engine's condition and the quality of the additives, making them recommended for vehicles with over 100,000 kilometers or those experiencing oil consumption issues. Avoid falling for exaggerated marketing claims—regular maintenance remains paramount, as excessive use can lead to sludge buildup and clogged oil passages.

[VonHector]

I have researched the engine oil additive market, which is mainly divided into four categories: anti-wear agents to reduce friction, detergents to remove carbon deposits, seal conditioners to prevent leaks, and viscosity modifiers to improve oil pressure. Experimental data shows that high-quality anti-wear agents can reduce engine wear by up to 30%, but this is on the condition that they are used with suitable engine oil. They are not recommended for new vehicles but show significant effects on high-mileage older cars. It's important to avoid cheap products containing chlorine or sulfur, as they can produce acidic substances that corrode the engine. From an economic perspective, regular maintenance offers better cost-effectiveness than using additives.

[LaColin]

When it comes to oil additives, many car owners have misconceptions. They are neither an IQ tax nor a miracle solution, but rather auxiliary products for specific situations. For example, in the cold winters of northern regions, some flow improvers can help engine oil lubricate faster; long-distance transport vehicles may use anti-wear agents to extend engine life. However, I must emphasize three points: First, never mix them with inferior engine oil; second, thoroughly clean the oil system before each oil change; finally, never believe in products claiming to permanently fix oil burning issues—serious mechanical problems must be repaired. Only by correctly understanding their functions can they play their proper role.