How to identify whether the oil in use needs to be replaced

When it comes to determining whether your engine oil needs to be changed, proper identification is essential. Here are several effective methods you can use to assess the condition of your engine oil: 1. **Finger Test**: Take a small amount of oil from the oil pan and rub it between your fingers. If it feels smooth and has a consistent texture without any stickiness or a "draw" effect, it's likely still in good condition. However, if it feels gritty, sticky, or leaves a residue, it may have degraded and should be replaced. 2. **Dipstick Inspection**: Pull out the dipstick and examine the oil mark under a light source. If the mark is clear and well-defined, the oil is still clean. But if the mark is blurry, dark, or difficult to see, this could indicate that the oil is contaminated or dirty, and it's time for a change. 3. **Pouring Test**: Pour a small amount of oil from the oil pan into a container and observe the flow as you slowly pour it out. If the oil flows smoothly and evenly with a glossy appearance, it’s likely still in good condition. If the flow is sluggish, thick, or appears cloudy, it may contain impurities or gum, and replacement is recommended. 4. **Drop Test**: Place a single drop of oil on a piece of white paper. If the center of the drop is dark brown and free of particles, with minimal yellow seepage around it, this suggests the oil has deteriorated and should be replaced. On the other hand, if the center is lighter in color and the yellow seepage is more noticeable, the oil is still in acceptable condition. It's important to perform these tests when the engine is still warm and the oil hasn't had time to settle. If you wait too long after turning off the engine, the oil may separate, and the top layer might appear cleaner than it actually is. In reality, the oil at the bottom of the pan may contain contaminants or degraded material. Therefore, always test the surface oil right after stopping the engine to ensure accurate results. By following these simple yet effective methods, you can better maintain your engine's performance and extend its lifespan. Regular checks not only save you money but also help prevent potential damage caused by poor-quality oil.

Semi-automatic Video Measuring Machine

Features of semi-automatic Video Measuring Machine:

The main body of the equipment is made of high-precision natural granite, which has stable temperature characteristics and resistance to aging deformation, ensuring measurement stability and long-term accuracy.



High precision fully closed-loop automatic zoom optical lens

Telecentric optical principle: Adopting a parallel light path optical design, the size of the object's image does not change with the distance from the lens, resulting in additional measurement errors in the perspective effect.

An automatic zoom optical telephoto lens is a lens specially designed to correct the parallax of traditional lenses. It can be used within a certain object distance range to ensure that the magnification of the obtained image does not change with the change of object distance. This is an important application for situations where the measured object is not on the same surface.

Semi-automatic Video Measuring Machine,Semi-automatic Video Measuring Instrument,Auto Focusing Measuring Instrument Manufacturer in China

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