Most drivers don’t even think about where to put the old lubricant when changing the oil. Meanwhile, experienced helmsmen often take samples from “training” in a car service where they change the lubricant. Why, says the AvtoVzglyad portal.
Draining used oil can tell a lot about the condition of the engine. But of course you don’t determine anything visually. Unless you can see metal chips when “working out” which will tell you the motor is very worn out. But this rarely happens. Therefore, in order to accurately diagnose the steel “heart”, the “slurry” is sent for laboratory analysis. This procedure is especially relevant for used cars, as their drive units require special attention.
Usually such a study costs 2000-5000 rubles, but it can also be done for free during tests conducted by major oil manufacturers to understand how their own products and those of competitors behave in real operating conditions.
This gives the car owner a large table that you need to be able to read. For example, the presence of silicon in waste oil indicates contamination. But it is important to look at the level. The norm is considered to be 5 mg / kg. For example, if this indicator is 10 or higher, it indicates that dirt is entering the oil through the inlet channel. That is, the driver has stored or incorrectly installed the air filter. This is where the air is drawn in.
The pour point is also important. An excellent indicator when the 5W30 all-weather grease turns into a gel in -40 frosts.
Continue. Components such as copper, iron, tin, lead or aluminum should be as small as possible as these are wear indicators. It would be nice to see zeros in the corresponding columns. And if the values ​​are high, then the engine has problems. Say, problems with the cylinder-piston group.
There should also be no water in the oil. Otherwise, an engine with an emulsion in a lubricant will not last long. Usually only “drowners” can have a large amount of moisture in the lubricant. So with such cars you have to be extremely careful.
Finally, there is such a parameter as “oxidation”. The normal value is 13-15 units. But at the age of 25, the lubricant is already hugely processing its resource. So in the future it is better to shorten the replacement interval.
Draining used oil can tell a lot about the condition of the engine. But of course you don’t determine anything visually. Unless you can see metal chips when “working out” which will tell you the motor is very worn out. But this rarely happens. Therefore, in order to accurately diagnose the steel “heart”, the “slurry” is sent for laboratory analysis. This procedure is especially relevant for used cars, as their drive units require special attention.
Usually such a study costs 2000-5000 rubles, but it can also be done for free during tests conducted by major oil manufacturers to understand how their own products and those of competitors behave in real operating conditions.
This gives the car owner a large table that you need to be able to read. For example, the presence of silicon in waste oil indicates contamination. But it is important to look at the level. The norm is considered to be 5 mg / kg. For example, if this indicator is 10 or higher, it indicates that dirt is entering the oil through the inlet channel. That is, the driver has stored or incorrectly installed the air filter. This is where the air is drawn in.
The pour point is also important. An excellent indicator when the 5W30 all-weather grease turns into a gel in -40 frosts.
Continue. Components such as copper, iron, tin, lead or aluminum should be as small as possible as these are wear indicators. It would be nice to see zeros in the corresponding columns. And if the values ​​are high, then the engine has problems. Say, problems with the cylinder-piston group.
There should also be no water in the oil. Otherwise, an engine with an emulsion in a lubricant will not last long. Usually only “drowners” can have a large amount of moisture in the lubricant. So with such cars you have to be extremely careful.
Finally, there is such a parameter as “oxidation”. The normal value is 13-15 units. But at the age of 25, the lubricant is already hugely processing its resource. So in the future it is better to shorten the replacement interval.
Source: Avto Vzglyad
I’m Sandra Torres, a passionate journalist and content creator. My specialty lies in covering the latest gadgets, trends and tech news for Div Bracket. With over 5 years of experience as a professional writer, I have built up an impressive portfolio of published works that showcase my expertise in this field.