The lubrication of diesel generator sets is a very important maintenance step, but many low-quality lubricating oils on the market are mixed with too much water, which affects the actual use.

Inferior oil has poor viscosity-temperature characteristics and oxidation resistance. The low-temperature viscosity of low-quality engine oil is too large, which makes the time between pumping the engine oil to the parts of the unit longer, and the dry friction time of the unit is prolonged; the high-temperature viscosity is too thin to form an oil film with sufficient strength. These will lead to increased wear and tear of the unit. At the same time, inferior engine oil is easily oxidized and deteriorated at high temperatures, and loses its function.

Inferior engine oil has poor detergency and dispersion. Inferior engine oil not only can not clean the dust and coke formed after combustion in the air when the unit is working, but it is easy to oxidize to form colloids and other impurities will cause more coke formation, resulting in poor lubrication and increased wear , The fuel consumption increases, the power drops, and in severe cases, the oil passage will be blocked, causing consequences such as pulling cylinders and holding tiles.

Inferior engine oil has poor resistance to acid and neutralization of acidic substances, and its own sulfur content is high. During the operation of the unit, water will be generated when the fuel is burned. When the water that is not removed and evaporated will react with the sulfide generated after the fuel oil is burned to form acid, which will cause acid corrosion to the unit.

  Unfortunately, if you lose money and buy inferior lubricating oil, you have no way of complaining. We can continue to use the following methods to evaporate the water. If the engine oil has been slightly emulsified, use the following methods to dispose of it: collect the emulsified engine oil of the same brand, add phenol (carbonic acid) with a weight of 1% to 3% of the oil weight as a demulsifier, stop stirring and heat to 50 At 80 degrees Celsius, let it settle for 4 hours or longer. After the oil and moisture layer, remove the water in the lower layer and make it usable.

If the thickened oil is emulsified, it can be disposed of by air drying: Put the emulsified thickened oil into a container with a clean serpentine heating tube, and use saturated steam to pass through the serpentine tube to stop heating, so that the oil temperature rises to 110 to 120 degrees Celsius, while passing clean compressed air into the container to stop stirring, so that the water evaporates. Until the milky white of the oil disappears and the transparent color is restored, it is then cooled to room temperature.

Inferior engine oil can be said to be the killer of diesel generator sets, and it is extremely harmful to the unit. If you accidentally buy inferior engine oil, do not use it because you are afraid of waste. If you use it, it will bring you greater losses.

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