The term for replacing the oil in the diesel engine. Oil replacement rules in diesel motor

10.05.2020

For many car enthusiasts, the topic of oil replacement in the engine is interesting and relevant. It should be noted that many factors that need to be considered to be considered on the frequency of replacement of oil in the engine to correctly and correctly determine the timing. After all, the cost of the oil itself and the cost of labor on the replacement procedure is also decent.

No matter how car owners be fed, the universal rule will not find. Companies producers of vehicles themselves determine this frequency experienced way And they prescribe it in the service manual of the device. But, in addition to the parameters installed by the plant, the most important adjustments make operating conditions that are individual in each particular case.

Recommendations for determining the optimal frequency of lubricant replacement

To set the optimal oil replacement frequency:

Explore the manufacturer's instruction with recommendations;
Take into account important factors that directly affect the water condition in the engine;
Disrupt the frequency according to the affecting factors (reduce from factory indicators, increase or leave at the same level).

How often to change the oil in a diesel engine and filters sets the manufacturer's factory in the manual for the unit. In practice, this figure is averaged value and is given only as the recommended time interval for machines and engines of certain classes. Regardless of whether the interval is provided in months or kilometers, it must take into account the characteristics of the region in which the car and the design aspects of the mechanisms used will be operated.

Policy of automotive concerns

Almost all manufacturers made their main trump cards, requiring permanent repairs and replacing new models. Cars that could be freely operated for decades without repair and maintenance do not allow to increase production capacity And get big profits. And many play on the desire of car owners to increase the interval replacement intervals and maintenance. Therefore, the oil change interval installed by the manufacturer is not true in the last instance. The only thing that the plant is responsible for which the manufacturer is responsible is the maintenance of the car before the end of the warranty service. Not depending on which engine is applied in your car, to determine the replacement interval is much more profitable independently, as it will save from extra costs.

Machine oils with Longlife technology are designed to increase the operation interval of the mechanical part of the car without maintenance. Modern industry releases automotive oilswhich allow you to increase the interval between service. But before applying such oils for your car, you should initially understand whether this product really helps save money and save cars. The use of this product becomes possible in compliance with such conditions:

The manufacturer of your car certified to use oil with LongLife technology.
The conditions in which are operated motor oil, do not contradict the use of lubricant with LongLife technology.

Is it possible to use long-term lubrication?

Often this information is impossible to learn from automotive instructions Operating. You will need to analyze such parameters:

For which region the car brand was developed;
For what consumer segment he was developed.

It is quite natural that the car designed to move on European roads cannot effectively withstand terms. lubricants Longlife in domestic operating conditions.

In addition, there are other factors affecting the deadlines for the replacement of lubricants. So, for example, this parameter directly depends on temperature modes Seasons, operational modes and materials that are used in the work. Cars operated in sophisticated conditionsrequire more frequent replacement Oil. Such conditions should be attributed to:

If the car is operated with interruptions. Since due to the irregular use of the car, the engine life is largely reduced and the cost of replacement is increasing lubricant and maintenance. This is due to the accumulation of condensate in the motor, which subsequently forms acid when mixing with diesel fuel.
If there are often trips for short distances. Such modes do not allow the engine to achieve normal operating temperatureAnd it saves condensate residues.
A serious test for any motors is the movement in traffic. Here the engine has to experience maximum overload. And the lubricant is heated to the limiting temperature marks, which speeds up the oxidation processes.
Transportation of heavy loads. Causes an additional load on the engine, while the lubrication fluid becomes more dense and is oxidized faster.
Work under polluted atmospheric air. All cars designed for operation in Europe are designed to work with minimal dust content in comparison with domestic roads. Consequently, the recommendations of the instruction regulating the replacement of lubrication every 60 thousand km are completely not applicable to our roads.
Embossed diesel fuel. Fuel combustion products will settle in lubricant material. And the quality of fuel materials on domestic gas stations still leave much to be desired.
Engine work on idling. In such modes, the motor is significantly overheated along with lubrication. What causes its speedy oxidation and the need for premature replacement.
Use express replacement of lubricant liquid. With this procedure, a significant part of the spent lubricant remains in the motor. And the sediment from the crankcase pallet is not removed by a vacuum way. Thus, the new lubricant immediately loses the lion's share of positive parameters.

If one of these items or even several relate to your car, you can immediately reduce the factory duration of the replacement of lubricating fluid twice. It is also necessary to always take into account the condition of the engine itself: mileage and age. Replacing the lubricant cleans from weeds old engine, Removing the Nagar and other trash.

On average, for a diesel engine, the lubricant replacement interval is 8 - 12 thousand km. But if during the year this interval was not passed, then replace the lubricant will still have to be replaced. In relation to the domestic climatic conditions of the middle strip, it is better to use such terms of the replacement: to change the lubricant fluid between the two then. Apply only the lubricants that the manufacturer recommended. Remember, the best of all is the engine that works on regular long trips without excessive loads on the asphalt coating.

If at least one of the conditions for the ideal operation of the engine is not respected, you can safely change the period of replacement of lubricating fluid.

Most car owners dream that a diesel engine is installed in their car. And - this is not enough! This engine Differs a number of features. It is more reliable, and fault tolerant when overloaded, unlike petrol analogs.

The reliability of these engines is provided by the special engine design, which allows it to carry all overloads without any consequences. As a result, high demands for diesel oil appear.

The process of replacing the lubricant fluid in diesel motor a little different from the same procedure in gasoline engines. But due to its design, this operation will be able to do any car owner without resorting to the help of car services.

Due to the big demand for this species Motors, auto manufacturers supplies the same models such as gasoline and diesel engine. Thus, a diesel adherents will have the opportunity to make your choice.

Oil replacement interval in diesel engine

Updating lubricating mixtures in these engines should occur more often than in its gasoline analog. Resource this type Motors depends on the right selected motor fluid, and compliance with the recommendations that are spelled out in the replacement regulations supplies.

According to the instructions for Europe, the renewal of the fuel and lubricant mixture is carried out every 10,000 mileage kilometers. On gasoline engines, limits above 25,000 - 50,000 kilometers are allowed.

Need to take into account the fact that different countries Diesel fuel varies, which is why fast oxidation and aging of the engine fluid occurs. Therefore, official auto dealers advise the renewal of consumables once 9,000-100,000 mileage kilometers.

The main factors affecting the frequency of oil replacement are:

type of lubricant used;
wednesday in which the car is used.

Unlike gasoline analogues, this type of motors there are much less factors influencing the shift of lubricating mixtures.

What oil use in diesel engine?

The choice of engine fluid for this type of engines is to approach responsibly. Incorrect selection of lubricant mixture will reduce all the advantages of this motor to zero. As a result, the owner of the diesel engine will receive a fairly voracious friend who will work with interruptions.

The following indicators of lubricant mixtures include:

oil composition;
term of use (may be lower than the replacement of the lubricating fluid in the motor. It is worth paying attention to it).

During the selection of the mixture, a choice should be made between synthetic and semi-synthetic oils. They reliably protect the motor from wear. In their composition, as a rule, there are no sulfur impurities, so that they do not appear on their use in the engine. However, you should not ride them longer than the change period, which is specified in the technical documentation of the car. Such mixtures reliably retain the motor from wear, but they also have their own service life. Note on this fact Attention.

Producers of diesel engines advise to use mostly the following mixes:

For old models:

CE - applies in turbodiesels operating at high revs;
CF - for passenger cars;
CF-4 - This class is interchangeable with the CE class;
CF-2 - a mixture for dual-circuit engines;
CG-4 - a mixture for heavy transport (tractor, trucks);
CI-4 - for motors with very high loads (2002 and until 2005);
CJ-4 - for four-stroke motors manufactured since 2007.

For new cars:

E4, E6, E7, E9 - universal classes of mixtures;
CRT (E6, E9) - Lubricating fluids with this console are used for cargo and heavy trucks.

In the case when the choice of lubricant is difficult, the following readings should be aware of:

Year of issue;
Motor volume;
Engine model (usually indicated on racks, on the back of decorative casing, on the engine itself);
Mileage.

An example of where the number on diesel engines is indicated.

These readings will help you make a choice. They are indicated on the revolving side of the tank with the engine fluid.

Oblast replacement order

When changing the engine fluid on diesel engines, it should be strictly observed a sequence of actions. No compliance with the logical sequence when performing a number of actions can cause a motor into a non-working state. Its repair will be folded, and the car dealer will refuse you in warranty service. It will not be superfluous to keep the technical documentation of the car, which will serve you with the prompt, in the case of force majeure.

When changing consumables step-by-step instruction Such:

Unscrew the filling valve cover (it is usually unscrewed counterclockwise);
Drain the oil into the pallet;
Remove the oil filter (it is removed by a special oil puller, its sequence number has shown on the filter case);
Replace motor fluid filter (you should not leave it, as it will not be flushed.);
On the lids of the valves there are gaskets that need to be replaced;
Change the spacer rings on the motor fluid bay valve (over time they crack and can fly);
Screw the lid to the plum valve;
Pour a new engine mixture;
Ensure that the level of lubricating mixture is below the maximum value;
Close the bay valve;
Get 1-3 minutes motor;
Restart the engine;
Reset the sensor (for zeroing it is necessary to turn off the engine, then remove the fuse, which is on the torpedo in the tape recorder compartment, then inserting it back, turn on the motor);
On this procedure for changing the oil is completed.

Fuse in the compartment of the radio

Depending on the brand, model, the sizes of the fuses may differ. In order to find out what kind of fuse, take out to see the technical documentation of the machine. In it, you will find a description of all fuses, their function, purpose.

Features of replacement of oil on freight and passenger cars

Change fuel and lubricants on cargo I. passenger cars Differs in the following points:

The passage interval is;
Instructions for changing consumables.

For freight diesel cars A lubricant mixture is used with a higher service life ratio, the frequency of the required shift, and the engine action.

In oils for diesel engines, additives are used that more effectively protect the parts of the motor. They cover microscopic scratches inside the engine, protecting it from the formation of cracks and the appearance of corrosive wear. As a consequence, the oil replacement range in the diesel engine of the truck is lower than that of a passenger car.

The frequency of changing lubricants for cargo diesel cars:

new car - from 50,000 - up to 100,000 mileage kilometers;
trucks operating 1-5 years - every 40,000 - 60000 mileage kilometers;
trucks with a service life of 5-10-15 years - every 45 thousand kilometers.

Indicators of the use of lubricant mixtures relative to the service life of the cargo machine:

1-5 years - from 5W-40 and up to 5W-45;
5-10 years - Divinol MultiMax Plus 10W-40 (or any other analogue with similar indicators);
10-15 or more years - Divinol Multimax Top 15W-40.

Periodicity of oil replacement in a turbocharger diesel engine:

cargo transport - every 55,000 - 65,000 kilometers (regardless of the service life);
passenger transport - every 10,000 - 12,000 kilometers (regardless of the service life).

Differences in the instructions for changing the lubricating mixtures in the cargo car are as follows:

Updating motor fluids occurs mainly on the cold engine (some brands of cars may differ);
Together with the motor fluid, the replacement is also the temperature sensors;
Replacing the Space Rings on planting place Oil filter.

Examples of oil replacement in diesel engines

The process of replacing the oil in diesel engines of the next brands: MAZ, Volkswagen, Tayota is distinguished by minor amendments.

Use of diesel engines in cars:

D4 - Tayota, Volkswagen, MAZ;
BUD - Volkswagen;
2C - Tayota.

Replacing the oil in the engine D4 is the same on all three cars. Replacing consumables on the 2C engine does not differ from that procedure that is used when a BUD is changed.

Most difficult process Motor fluid change in D4 MAZ engine. To change the lubricant fluid, you will have to remove the set of nozzles that are installed over the valve of the motor mixture bay.

Motor D4 besides trucks MAZ is installed on Volvo ( the lineup Discover - cargo transport). This engine can be easily remand. Such an advantage is used various cars Workshops in which they collect hot childbirth.

Hot-genus Jeep BRS T1 (Minsk Motor Show 2011).

A distinctive feature in the process of updating oil on Volkswagen are the next items:

After the discharge of the lubricating fluid should be pouring a cleansing mixture (it must take a raid in the motor);
Replacing the set temperature sensors.

The most simple process of changing the engine fluid will be on Tayota machines. In them, when refreamed lubricants, no change of fuses, temperature sensors are not required. You only need to update the lubricant mixture, then restart the engine (only applies to Tayota cargo diesel versions).

Instructions for update motor mixes on all three cars the same, with the exception of certain moments relating to specific models In the ruler. Otherwise, the process of updating the lubricant is normal:

Motor mixture cream;
Replacing the filter;
Restarting the engine and reset the meter.

Consequences of untimely replacement

Unlike gasoline engines, with diesel fewer problems. Even if you are late for 1200 - 2450 kilometers with the change of consumables, it will continue to work as usual. As a rule, the appropriate notification of the need to change the engine fluid will be displayed on the instrument panel.

The most likely breakdowns due to late update of consumables are:

failure of the motor fluid temperature sensor;
discharge of motor rotation at high loads;
wrong indications on dashboard.

These motors are very high-quality, and you will not need to repair the engine if you did not update the consumables on time.

Replacing the oil in the diesel engine is calculated to those procedures that must be carried out for normal operation vehicle. Everyone knows the saying, which stars that the car is not a luxury, but a means of movement. This does not apply to consumables. To serve the car, pour high-quality fuel and lubricant into it - all this costs it is not suiced.

To save, you can independently diagnose and repair your own machine. To replace lubrication in the engine, it is not necessary to contact the car service.

The role of the car in the work of the engine

It does not matter which power unit is in the car. The procedures for replacing the oil in engines on gasoline and in the dieselle do not differ. Why is the lubricant need a motor? Without autosal, it is impossible to use the car normally. The consumility provides lubrication of all parts and engine nodes. Every FEA contains a large number of moving parts interacting with each other.

Imagine that the car goes at full speed, and suddenly everything is evaporated from its engine. Details will begin to strike, cracks and chips will form. The same thing happens with an insufficient amount of lubricating fluid or reducing its technical characteristics. In view of this, it is necessary to respect oil replacement intervals. Only so you can avoid the occurrence of problems in the work of the engine.

What is the frequency of oil replacement? Automakers prescribe this in the operational manual. Often, the deadlines indicated by them are far from reality, because Russian road surfaces differ from ideal. Usually automakers indicate such a lubricant replacement time:

mineralka - from 5,000 to 6,000 km of run;
synthetic - from 10,000 to 15,000 km run.

There are many factors that affect the operating period of the car:

date of car production;
intensity of operation;
driving style;
fuel characteristics;
degree of loads;
road dust and dirt.

Factors that affect the work of the DVS

The most important factor is the date of release of the machine (the number of motor-spent motor internal combustion), Because it depends on it the degree of wear of all aggregates. Lubrication complex is no exception. The more Motokov worked the power unit of the vehicle, the more often the petroleum product.

The intensity of operation implies trips to large and small distances. With prolonged trips, the machine lubricant is heated, passes through all parts of the engine, forming a film on them. With short trips, the car does not have time to smear all the engine parts normally.

The driving style is also very meaningful. Peregazovka, sudden stops, drifts - all this overloads auto aggregates. The machine, intended to compensate for friction in the engine, is unable to cope with its task, unevenly distributed in detail. As a result, friction in the engine increases.

High-quality fuel engine health

It is well known that a specific precipitate appears when the low-quality fuel is exhibited, covering all motor spare parts that make the course of moving elements. The raid hinders the car to lubricate the details normally. In view of this, if you want to save the engine and ensure its uninterrupted operation, use only high-quality fuel.

High loads on the axes and knots of the car can be damaged to spare parts. Railway trips lead to loosening motor nodes, disruption of moving parts.

Dust, which enters the engine, is the reason for the appearance of a precipitate on its spare parts. She, like a raid from the burnt fuel, prevents the normal operation of the engine.

Algorithm shift cars

Independently replacing the car in the diesel engine is quite simple. However, there are some nuances. They need to be remembered when replacing.

Install the car to the viewing ditch / overpass.
Perform heating oil fluid. Heated oil is juicy than cold. To warm up, turn on the engine, let it work for a couple of minutes. After that, turn off the internal combustion engine.
Install a pre-prepared bucket under the plum stopper.
Drain the spent lubricant. The design of each machine involves the presence of a plum cover responsible for accessing the lubricant complex of the car. It is located commonly under the bottom of the car. Opening the lid, keep care. Hot oil will quickly pour out the tank.
Unscrew the oil filter (manually either by means of a special tool).
Remove the lining located left of the oil filter and the surface of the housing.
Wash the place of fixation well.
Perform the lubrication of the new oil filter. To do this, pour some oil fluid in its cavity.
Screw the oil filter.
Wipe it, check how reliably and firmly enshrined.
Open the oil refining neck located on the outside of the motor.
Pour fresh car in the neck. Pour oil is needed to a special mark. This will allow your engine to function without any failures.
Tighten the lid. Replacement machine oil This is over. You can proceed with the operation of the car.

When using an internal combustion engine on a diesel engine, it is desirable to pour lubrication of the same brand. Make a change of oil filter in no way.
If the oil fluid rapidly darkens and drawn after the fill, it means that it makes the engine. Changing the shade of the machine is not considered a sign of loss of lubrication properties.
Permanent trips on the machine lubricant of the same brand make it possible to avoid the appearance of the formations that do not dissolve. Therefore, wash the motor you will not need.
In order to protect yourself from buying fake petroleum products, get the consumers only in official outlets.
Follow the above algorithm, observing the order of all actions. Remember that you can always contact the car service. However, if you want to save your money, do everything yourself. Replacing machine oil is not the most difficult procedure. Its under force correctly fulfill even inexperienced car enthusiast.
Always carry with you in the trunk at least 1 liter of oil fluid. She can come in handy in an unexpected situation.

Diesel power units are distinguished by certain features compared to petrol engines. In this regard, the oil replacement in the diesel has certain subtleties. Special requirements are presented to the quality of lubricating fluid poured into the aggregates operating on diesel. At the replacement intervals, the operating conditions and quality of the fuel used are largely affected.

Oils for diesel engines

To replace the oil in a diesel engine, a special lubricating fluid will be required. It must have a class of at least B2 by classification of ASEA or CD by API. The viscosity parameter should be selected based on the tolerances set by the automaker.

Most often for diesel power units, universal semi-synthetic and synthetic lubricating fluids are used, the viscosity index is 5W40 or 10W40. Additionally, it is recommended to consider the type of product (synthetics, semi-synthetic, mineral water). It is also important to observe the engine oil replacement interval.

In gasoline engines you can learn from a separate article on the site, and today we will look at all about the replacement of oil in diesel.

Why in diesel engines change more often?

The engine life of the diesel unit depends on the quality and conformity of the oil used in compliance with all the recommendations in the operating manual from the automaker. For European cars, the replacement of oil in diesel engines is recommended about every 10 thousand mileage kilometers, while in gasoline aggregates oil can be changed every 15-17 thousand kilometers. Note that this is true only for good operational conditions of European countries.

It is important to note that gasoline and diesel fuel in Europe are better than in Russia and the CIS countries as a whole. The domestic diesel fuel contains more sulfur and other harmful impurities. In this regard, the engine oil will grow faster and oxidized. In the dealer car services of our country, the regulations usually change oil in gasoline engines through 10, and in diesel after 7.5 thousand mileage kilometers. When operating the machine in harsh conditions and trips for small distances, the interval will have to shorten. In such cases, there are every 5 thousand kilometers of mileage on diesel engines.

Some motorists mistakenly believe that modern turbocharged diesel engines operating on synthetic and semi-synthetic fluids require less frequent replacement than old aggregates in which mineral water poured.

Synthetic by semi-synthetic synthetic is characterized by the ability to preserve the initial properties and specifications. Such oils are better cleaning the insides of the engine from wear products, it is better to protect it from wear during the entire period of operation. Thus, expensive synthetic has higher performance featuresBut even it needs to be changed regularly.

Concerning lubricants With a Longlife mark, which are designed for more significant runs, as well as universal oils, everything is not so simple with them. Initially, they are developed for diesel engines working on a good diesel fuel corresponding to the standards of European countries. In the CIS, such diesel fuel is rarely found, therefore, the mentioned oils do not work as much as the manufacturer involves.

What will happen if you do not change the oil in the diesel?

The quality of diesel fuel and operating conditions significantly affect the life of the engine oil. Without timely replacement, the liquid will deteriorate and will negatively affect the inside of the motor. In old oil, particles of dirt and dust, working, like abrasive, accumulate.

Gradually present in the lubricant liquid additives are spoiled and disintegrated, so the fluid ceases to properly protect the engine from wear, lubricating the fuel surface. Additionally, the detergent properties of engine oil and in the diesel engine begins to postpone the Nagar, as well as all sorts of harmful deposits.

In critical situations, it is possible to completely block the oil channels of the lubricant with dirty oil, which is strongly thickened. This leads to the need for expensive and complex overhaul. In the case of diesel engines, this repairs will cost very expensive!

Oil change in diesel engine - the most important procedureallowing to extend the service life power aggregate. We highly recommend car owners to use only those oils that match all tolerances. Ideally need to fill original oilthat recommends a car manufacturer company. With each oil replacement, it is important to replace the filter in the diesel engine.

If you have noticed that the oil quickly darkened or at all became black almost immediately after the replacement, it does not mean low quality lubricant. On the contrary, when oil darkens, it works. It has detergents and dispersing additives that are useful for the power unit.

Permanent operation of a machine on a specific type of oil from a particular brand eliminates the risk of interaction between the remains of the old liquid and fresh. This will exclude the emergence of insoluble and dangerous deposits. Consequently, you will not need to wash the power unit when replacing lubricating fluid.

Oil replacement procedure in diesels

The principal differences between the oil replacement in the diesel engine, compared with gasoline engines, does not exist. The algorithm is approximately the same, and it is recommended to replace oil in a diesel engine on a preheated motor so that the fluid is more liquid and flowed in full.

Call the car on watching pit, overpass or lift lift. It is important that the body is placed horizontally relative to the Earth. Open the hood, unscrew the cover of the fuel plate and pull the dipstick. Substitute the appropriate capacity under the crankcase in which you can drain the old liquid (it is important that the whole it is fitted, otherwise you are staining the floor).

Unscrewed drain plugwhich is an ordinary bolt. Do it carefully, otherwise you can burn. On average, 4-5 liters of lubricant flows out of the motor in 5-7 minutes. After that, you need to unscrew the oil filter using special key or screwdriver. In the second case, you need to break the filter housing and use a screwdriver as a lever. Many experienced motorists recommend new filter Before twisting, fill with oil, but it is not relevant for new cars. The main thing to lubricate the thread and sealing gum, after which you can screw the new filter into place.

Screw a drain plug in place, and it is desirable to replace the gasket (it has a kind of copper washer). Clear the bolt carefully, so as not to thwart the thread, and the filter is generally better twisted manually - there will be enough efforts.

Through the funnel, so as not to shed anything, filled freshly purchased butter into the fuel neck. Fill about 20% less oil than it is said in the instruction manual. This is due to the fact that when replacing the entire liquid merges. Check the level with the help of the probe so that the fluid is between the MIN and Max marks. Tighten the neck cover, insert the dipstick and start the engine, waiting for the disappearance of the oil pressure light on the dashboard. Move the motor and again check the oil level in the diploma system. If necessary, the result of it, but it is important not to overdo it. If liquids are greater than the maximum, gaskets and glands may be damaged.

As you can see, in the replacement of oil in a diesel engine there is nothing complicated, so there is no need to spend money on a visit to the service center. Everything can be done with your own hands, saving some money.

As a result, increased requirements for the quality of diesel engine oil are put forward. At intervals of oil replacement in a diesel engine, the quality of refilled diesel fuel is affected, as well as the conditions of operation of a particular power unit.

Modern diesel engines suggest the use of oils, whose class is not lower than B2 by ASEA (CD by API). As for viscosity, the selection is carried out according to the tolerances of the manufacturer of one or another. The most widely for diesel is universal synthetic and semi-synthetic oils With 5W40 and 10W40 index. Additionally, it is necessary to take into account the type of oil used (mineral, semi-synthetic and synthetic oil) And strictly adhere to the recommended replacement interval.

As already mentioned, quality diesel fuel And certain operating conditions directly affect the resource of engine oil. In the event that not changing the lubricant in a timely manner, the resulting oil accumulates particles of dust and dirt.

The additives in oil have a property with time to break up, which leads to loss of ability to effectively lubricate and protect the driving surface from wear, the detergent is reduced.

In critical cases, there is a complete blockage and the entire engine with dirty and thickened butter, which leads to a serious breakdown of the power unit. For a diesel engine, this means extremely expensive repairs.

During the operation of the diesel engine, it is recommended to use one brand oil appropriate for all tolerances, which is initially intended for a diesel engine (not universal). In parallel with the replacement of engine oil, the oil filter of the engine lubrication system is mandatory.
Fast darkening and even blackening engine oil after it is replaced directly indicates the active effect of dispersing and detergent additives that are necessarily included in its composition. Color change does not mean that lubricant has lost its properties.
The permanent ride on the oil of one type and the manufacturer eliminates the interaction of the remains of the old oil with the fresh and formation of insoluble deposits in the engine. It turns out that the need for washing a diesel engine before replacing the oil becomes much less relevant.
To insure yourself from acquiring a fake, buy engine oil only official dealer Or at the official points of sale.