To determine whether the oil filter needs to be replaced, it is not enough to just look at the mileage, but to observe comprehensively. Let me sort out a few key points for you to quickly judge:

Firstly, the core judgment criteria

Oil condition: Normal oil is a semi transparent light yellow or amber color. If it turns black, sticky, has sediment or a sour taste, it indicates that the filter element may have failed.

Filter appearance: Check for dust, oil stains, deformation, or cracks on the outer shell, and for oil stains seeping out from the interface.

Driving experience: A clogged filter can cause the cold start of the car to stall, acceleration to be weak, and fuel consumption to increase by 10% -15%.

Driving range: Generally replaced every 5000-10000 kilometers, but in harsh environments such as dusty and short distance driving, the cycle needs to be shortened.

Secondly, fast self checking method

‌Check the engine oil: Take out the dipstick and observe the color and viscosity.

Smell: There is a pungent sour taste that may spoil.

‌Touch sensation: Rub the engine oil, the viscosity decreases and needs to be replaced.

Listen to the sound: Abnormal engine noise may be a problem with the filter.

Use test paper: The oil test paper has turned black or contains impurities, and needs to be replaced.

Thirdly, professional testing

Oil pressure test: If the pressure is lower than normal, it may indicate a clogged filter element.

Professional diagnosis: 4S stores or repair shops can read the engine data stream for judgment.

Fourth, precautions

Comprehensive judgment: Do not rely solely on a single indicator, combine multiple methods.

‌Timely replacement: Handle any abnormalities promptly to avoid engine wear and tear.