How to Determine if a Car Needs an Oil Change?
2 Answers
Whether a car needs an oil change can be judged from the following aspects: 1. Observe the color of the engine oil. When the engine oil shows a noticeable color change, it needs to be replaced. 2. Use an oil test strip for observation. If abnormal phenomena are detected, the oil should be changed. Below is relevant information about engine oil: Engine oil can be divided into mineral oil and synthetic oil, with synthetic oil further categorized into full synthetic oil and semi-synthetic oil. Approximately over 95% of cars use mineral base oil. When a car engine is operating, using lubricating oil can appropriately reduce the engine's working temperature.
With over a decade of driving experience, I rely on my expertise and routine checks to determine when to change the engine oil. Every month or after refueling, I pull out the dipstick to inspect: if the color changes from light brown to deep black or becomes viscous, it indicates contamination and calls for replacement; oil levels below the minimum mark also require immediate attention. Increased engine noise, higher fuel consumption, or sluggish acceleration often signal aged oil. I typically change the oil around every 5,000 kilometers, recording the mileage to avoid oversight. Some people use white paper test strips to check oil droplets—small, distinct rings suggest good oil quality, while large, blurred ones mean it's time to act. Developing regular maintenance habits protects engine longevity and saves on major repair costs.
