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Debunking Myths About Engine Oil


Myth: The “W” in multi-grade engine oil stands for “Weight”.

Fact: It stands for “Winter”. The number before the “W” is the viscosity rating for the oil during cold start, according to a standardized rating sytem developed by the Society of Automotive Engineers (SAE) for winter oil use.


Myth : Engine oil that turns black easily are no good.

Fact: On the contrary, engine oil that does not turn black is no good. Almost all modern engine oil contains detergent dispersant additives which act as a cleaning agent to remove the carbon deposits from the internal components of the engine parts. If the engine oil remains clean, it just shows that the additives are not working to remove the harmful carbon deposits.


Myth: The vehicle manufacturer warranty will be void if another brand of engine oil is used.

Fact: Using another brand of engine oil will not void the warranty as long as the engine oil used meets the manufacturer standards. Always refer to the vehicle manufacturer’s user manual to be sure.


Myth: Switching another brand of oil, especially of another type, will harm my engine.

Fact: Though different brand of engine oil differs in their characteristics and additives content, simply changing another brand of oil will not harm your engine in any way. Mineral, synthetic blend and fully synthetic engine oils are compatible. Switching or even mixing between types of engine oil will not be detrimental to your engine.


Myth: Adding aftermarket engine oil additives will boost the engine’s performance.

Fact: All reputable engine oil comes formulated with all the necessary additives added to ensure optimum engine performance. Adding external additives may upset and dilute what is already there and lessen the effectiveness of the oil. Only in cases of high-performance engine, additives are recommended by vehicle manufacturers.


Myth: Engine oil need not be changed periodically as it does not really break down.

Fact: Engine oil does break down. When exposed consistently to high temperature, additives in the oil get significant weakened and begin breaking down.  As a result, the engine oil is laden with carbon, acid, metal particles and oxidized materials. These affect the proper function of the engine mechanisms.