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About diesel generator oil, these issues you may need to know
July 05, 2022
Diesel generator lubricating oil (oil) has an important impact on the performance of the unit, the early wear and bearing ablation of many parts of the diesel generator set, to a large extent, is caused by poor lubrication, and the oil is good or bad and directly affect the lubrication performance of the unit, in order to extend the service life of the diesel generator set and ensure its normal work, about diesel generator oil, the following issues users should understand.
Diesel generator lubricating oil (oil) for the performance of the unit has an important impact on the early wear and bearing ablation of many parts of the diesel generator set, to a large extent, is caused by poor lubrication, and the oil is good or bad and directly affect the lubrication performance of the unit, in order to extend the service life of the diesel generator set and to ensure its normal work, about diesel generator oil, the following issues users should Understand.
Can the shade of oil color reflect the performance of the oil?
The oil color depends on the base oil and additive formula, different base oil and additive formula will make the oil show different shades of color. The performance of an oil is evaluated through a series of engine bench tests as well as in practice. These tests test the performance of the oil in a number of ways, including oxidation, corrosion, deposits, sticky rings, sludge, scuffing, wear and so on. Therefore, the performance of an oil cannot be evaluated by the color of the oil alone.
Is a motor oil that turns black easily necessarily bad?
Not necessarily. Some good engine oils contain additives that can dissolve the carbon inside the engine, so it is easy to turn black, but it has no effect on the performance of the oil.
Ø Why should I change the oil regularly?
Motor oil will gradually deteriorate during operation, the main reasons are.
① Combustion by-products: such as water, acid, carbon deposits, etc.
② Fuel dilution.
③ High temperature oxidation deterioration of the oil itself.
④ Dust and metal particles.
All of these substances are contained in the oil, and at the same time, the additives in the oil will be consumed continuously with the use process. Not changing the oil on schedule will significantly reduce the protective effect of oil on diesel generator anti-wear.
When changing the oil, you can drain the contaminants inside the oil by the way, and also ensure that the composition in the oil is kept at a reasonable level.
When changing the oil, why is the oil released very thin?
The viscosity of oil decreases as the temperature rises, so when you change the oil at a higher temperature, the viscosity is thinner than that at room temperature, which is a normal phenomenon.
However, when the temperature drops to room temperature, the oil viscosity is still very low, most likely due to fuel dilution during the use of the oil.
Ø How to check the quality condition of diesel generator set in use oil?
① The oil sample is milky white or foggy, indicating that the oil has entered water.
② If the oil sample becomes gray, it may be contaminated by gasoline.
③ If it turns black, it is caused by the product of incomplete combustion of fuel.
① Irritating odor indicates that the oil is oxidized at high temperature.
② heavy fuel smell, indicating serious dilution by fuel (a small amount of used oil has normal fuel smell).
Oil drop spot test.
Take a drop of oil and put it on the filter paper, observe the change of the spot.
① oil quickly spread, no deposits in the middle, indicating that the oil is normal.
② oil diffusion slowly, the middle of the deposit, indicating that the oil has become dirty, should be replaced in a timely manner.
Heat the thin metal sheet to above 110℃, drop a drop of oil, if the oil burst proves that the oil contains water, this method can detect more than 0.2% of water content.
Ø How to choose engine oil?
① According to the recommendation of the generator manufacturer, there are many brands and types of diesel engine oil, you must choose the diesel engine oil suitable for your diesel generator.
② Select according to the ambient temperature. In the summer season when the temperature is high, you should use diesel engine oil with high viscosity, on the contrary, in the winter when the temperature is low, you should use diesel engine oil with high viscosity and thin.
③ Please choose genuine engine oil when choosing diesel engine oil, don't buy fake or inferior diesel engine oil cheaply.
Only the correct choice of engine oil, in order to play the technical performance of the oil, to ensure the normal operation of diesel generators, to extend the life of diesel generators.
After using diesel generators for so long, you should know some of the technological advances of diesel generator sets
Introduction to the oil pressure gauge commonly used in diesel generator sets