Lubricant viscosity exceeds the specified limit

It depends on the equipment it will be used in, as well as the difference in viscosity values; is the lubricant chosen appropriately? Address these issues first.

Viscosity is an important criterion for assessing the quality of lubricating oil; generally, if the viscosity exceeds the specified level, it is necessary to replace the oil.

I feel that the conditions specified in the question posed by the original poster are insufficient; “the viscosity of the lubricant does not meet the standard requirements” – is this a standard for new lubricants? Is the oil standard still being used? What is the design value? As for what kind of equipment this is, it should be said that after being used for a period of time, lubricants gradually deteriorate or even become unusable due to oxidation over time and the influence of external factors during use. Replacing the lubricant at the appropriate time is beneficial for maintaining the equipment and saving fuel. During use, due to the effects of temperature and pressure as well as air oxidation, the lubricating oil ages and deteriorates, producing organic acids and precipitates. Additives are consumed and decomposed, which reduces the quality of the oil; they also mix in with fuel, cutting fluids, water, and metal mechanical impurities. 1) Determine the oil change interval based on the operating conditions of the specific equipment. Determining the lubricant replacement cycle is a crucial task; it is necessary to ensure the quality of the lubricant and prevent abnormal wear of the machinery, while at the same time extending the interval between replacements as much as possible and reducing lubricant consumption. Things such as whether the oil temperature and pressure are normal during equipment operation, whether there are any abnormal phenomena, and whether the oil filter is clean and unobstructed should be checked. When maintaining the equipment, the lubrication system must be carefully inspected for defects caused by poor oil quality, such as severe rusting, peeling, or scratches; all these factors serve as criteria for determining whether oil replacement is necessary. It should not be determined based on just one indicator; 2) the oil change interval should be decided according to the results of oil sample inspections and tests – this seems to be a more scientific approach. However, when taking samples, attention must also be paid to the representativeness of the oil samples and to the cleanliness of the containers. Yes or no, for your reference.