How to Check Whether the Car's Engine Oil Needs to Be Changed or Not
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Methods to check whether the car's engine oil needs to be changed: 1. You can judge by checking the quality of the oil, observing its transparency and color. If the color is clear without impurities or strange odors, it means it can still be used. If the color turns black and has a strange odor, it's time to change the oil; 2. You can check the viscosity of the oil. Dip a little oil on your hand. If it has no stickiness at all on your fingers and feels like water, it means the oil has reached its usage limit and needs to be changed. The main function of engine oil is to reduce friction and wear of moving parts and to remove sludge and paint deposits in the engine.