To develop good driving habits, regular inspection of oil surface, the liquid level is too high will not only increase the resistance of the engine running, resulting in unnecessary power loss, but also cause oil leakage; liquid level is too low, due to poor lubrication and damage Engine, so the engine oil is too low should check the engine with or without leakage of oil and abnormal oil consumption; start the engine before the ignition switch, oil level indicator and oil pressure indicator light, start the engine should be extinguished. If there is any abnormality, it must be checked.
    The use of appropriate viscosity of the oil, oil viscosity is too low, the oil film is easy to damage and produce parts jam phenomenon; viscosity is too high, it will produce additional movement of the components caused by the engine to start difficult, power loss increases. Therefore, when replacing the oil, refer to the recommended viscosity of the manufacturer's manual in the driver's manual.
    1) According to the climate selection of oil. Ambient temperature is low, the choice of smaller viscosity of the oil, easy to start the engine. When the ambient temperature is high, the oil with high viscosity is selected to keep the oil film.
    2) According to the choice of oil conditions, better engine conditions, with a smaller gap, the choice of smaller viscosity of the oil, poor vehicle conditions, with a larger gap, the choice of larger viscosity of the oil;
    3) As the diesel engine has a higher combustion pressure, coupled with diesel combustion of sulfuric acid produced after the sulfuric acid dilution oil, so the diesel engine should be used to neutralize the sulfuric acid diesel engine oil.
    Regular replacement of engine oil, it is best not to add oil, if the long-term addition of oil, will make the engine oil pollution inside the accumulation of more, blocking the oil filter, resulting in engine parts without lubrication and serious damage to the engine parts.
    For the automotive engine lubrication system, as long as the regular maintenance work, not only can extend the life of the engine, but also can reduce unnecessary economic losses.