The reason that engine oil turns to black

The main two reasons black. The first is due to pure dispersing agent, followed by the use of the oil is oxidized. If the same black in an oil used, the description of this oil did not play its normal cleaning effect. The current oil generally contain clean dispersant and absorption of coke and oil combustion oxides, so swapping out oil change to ensure internal engine cleanliness.

So, just to replace the black oil is not necessarily due to internal engine dirty cause, as long as the time required to change the oil. Note: Be sure to regularly change the oil and oil filter (or filters). After a period of use of oil, the oil viscosity thickens and acidic products generated, such as the occasional replacement of the damaged engine titanium connecting rods components, affect the normal operation of the engine.

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