How to identify fake and inferior lubricants?
author: Ann
2025-01-03
1. If the user has the conditions, the oil can be sent to the relevant unit for testing:
The total base number of internal combustion engine oil, the neutralization number of anti-wear hydraulic oil, and the sulfur content of gear oil can be measured to estimate the additive addition. Generally, these values of fake oil are close to 0, that is, there is no additive that can best play the full function of the lubricant. Another more reliable method is to test the oil according to the specification index to see if the value is within the specification range.
2. If there is no condition, it can be judged by senses:
a) If the diesel smell is too strong after heating, it may be a fake oil thickened by diesel;
b) Drop the oil on the filter paper and let it spread. If it contains asphalt, extracted oil or distillate oil, there will be dark spots in the center of the oil drop;
c) Hydraulic oil, turbine oil, etc. can be added with water and shaken vigorously and then left to stand. If the oil and water are not separated, it is inferior oil.
Of course, oil samples can only be tested after the lubricant is purchased. It seems "too late" at this time and is not realistic. Some illegal manufacturers use sophisticated counterfeiting methods, and it is difficult for users to identify them from the packaging. Therefore, you should try to buy from local agents with good reputation or designated by the manufacturer to ensure that you buy genuine and high-quality lubricants.
The total base number of internal combustion engine oil, the neutralization number of anti-wear hydraulic oil, and the sulfur content of gear oil can be measured to estimate the additive addition. Generally, these values of fake oil are close to 0, that is, there is no additive that can best play the full function of the lubricant. Another more reliable method is to test the oil according to the specification index to see if the value is within the specification range.
2. If there is no condition, it can be judged by senses:
a) If the diesel smell is too strong after heating, it may be a fake oil thickened by diesel;
b) Drop the oil on the filter paper and let it spread. If it contains asphalt, extracted oil or distillate oil, there will be dark spots in the center of the oil drop;
c) Hydraulic oil, turbine oil, etc. can be added with water and shaken vigorously and then left to stand. If the oil and water are not separated, it is inferior oil.
Of course, oil samples can only be tested after the lubricant is purchased. It seems "too late" at this time and is not realistic. Some illegal manufacturers use sophisticated counterfeiting methods, and it is difficult for users to identify them from the packaging. Therefore, you should try to buy from local agents with good reputation or designated by the manufacturer to ensure that you buy genuine and high-quality lubricants.
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