Car maintenance the most critical part is the choice of engine oil is known as the car blood; it is only by virtue of its lubrication to ensure the normal operation of the engine, so choosing the right oil has played an important role for the engine life span. Precisely because of this, has a lot of car owners eager maintenance the car, whether appropriate or not always give their car the most advanced full synthetic motor oil, in fact, just need select the applicable oil, over high-grade oil is not only a waste of money, the effect is only played less effective.

Currently on the market, base on oils of different mineral can be simply divided into two kinds, mineral oil and synthetic oil (vegetable oil production because it is scarce, so not count). Synthetic oil is the most upscale.

The biggest difference between the two oils: the temperature of the synthetic oil used more widely, service life is longer, as well as higher costs; same oil film requirements, synthetic oil low viscosity can be used to reach, and mineral oil on the required relative to synthetic oil thicker viscosity in order to achieve such requirements. In the same work environment, synthetic oil service life is longer than mineral oil and therefore higher costs than mineral oils caska car dvd player, but compare to the oil changes, the cost not much higher than that of mineral oil.

As a general statement, motor oil drains intervals of 5,000km. Many car owners think this as a fixed understanding. In fact, vehicle due to engine condition, the use of oil and use of the environment is different, which should also be reasonably differences on oil change period, cannot be generalized.

1. Engine condition
New car inside engine is clean, there is little carbon and other impurities, the oil change period can be extended. But should not be more than 7500 kilometers, even the best oil to use after a certain mileage, will change its chemical properties, in particular the additive composition will gradually lost effective function, no protection of the engine. Old engine, more particularly the lack of maintenance engine the internal have many carbon colloid, after adding new oil can easily be contaminated, causing discoloration and qualitative change, so oil change period should be shortened. Certainly able to clean engine inside is best.

2. The oil used
Identifying of Engine oil has quality grade of oil (API) and viscosity (SAE) two standards. General quality level from SC, SD until the SM level, the higher the level in car dvd players, the better the quality. Hyundai cars and more is the high-rev engine, the higher quality demand for oil. Generally speaking , SF oil level and above have good oxidation resistance, clean dispersion, under high shear and high temperature viscosity stability, provides the engine reliable protection, quality stability for a long time constant, under normal circumstances, can meet the 5,000 km oil change intervals.

Some car diagnostic tools can help you test your car by yourself, such as:
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