Main causes of engine oil deterioration:
1, the engine oil is not right, the quality is not up to the requirements, general turbocharging and calibration speed greater than 2000r/min of the diesel engine should choose more than CC grade oil;
2, diesel engine technical status is not good, gas channeling, channeling oil, with the gap is too large or too high temperature;
3, diesel engine often at low temperature, low load, low speed operation, piston deformation is not enough, the incomplete combustion of diesel cylinder into the oil pan to the oil dilution metamorphism;
4, the exhaust gas into the oil sump into water and acidic substances, so that the deterioration of oil;
5, the oil filter is dirty, without filtering the dirty oil into the lubricating parts, accelerate the wear of the parts.
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