Arises frequently asked question For car enthusiasts, which oil is better for the Nissan X-Trail T31? The original performs the functions assigned to it in a special difficult conditions. Other fluids used for normal operation, such as gearbox oils or greases do not lose their useful qualities so quickly and perform the necessary functions much easier. For such Supplies consistency is ensured temperature regime, normal loads and moderate pressure.
Motor oils are used in extremely unstable conditions. The same working volume is constantly exposed to temperature changes and mechanical stress of a certain degree of intensity. This is explained by various nodes motors are lubricated on an individual basis.
Motor oil is also constantly exposed to chemicals. Working fluid mixes with oxygen molecules and other gaseous substances. Under conditions of such constant loads, any motor oil becomes unusable relatively quickly and absorbs various combustion products, metal shavings, etc.
The functions of motor oils include:

• Reduced friction between mechanisms in contact with each other;
• Protection of components from corrosion;
• Ensuring efficient heat exchange;
• Removal of metal shavings from areas of contact between engine elements;
• Slowing down the formation of deposits on components.

Main characteristics of the liquid

One of the most important technical characteristics Any motor oil is considered to have a viscosity rating according to SAE. This indicator can change along with temperature conditions that have a constant impact. The higher working temperature, the more intense the viscosity loss of the lubricant becomes. For normal engine operation, ensuring cold starting in winter time year viscosity index lubricants shouldn't be too big. At elevated temperatures, for example, in the summer heat the oil should not be liquid. The viscosity index must be as high as possible so that the lubricant can fulfill its functional purpose.

The choice of viscosity class of lubricants is determined by the nature of the temperature effect environment. Which oil is best for the Nissan X-Trail engine? Each manufacturer, in the instructions for the car, indicates the brand of motor oil recommended for use in the engines of a particular car model. If you follow these instructions, you can easily determine the required degree of viscosity, respectively weather conditions specific region. Over time, the need arises to increase the required viscosity grade. It depends on the mileage of the car.

If in new engine If synthetic oil with a rating of 5W-30 was poured, then for a used car it is better to use, for example, 5W-40.

Flash point
This is the name for operating conditions in which the fluidity of the lubricant is completely lost and the substance becomes immobile. At a certain temperature, the degree of viscosity increases sharply, the paraffin contained in the oil crystallizes, and as a result the substance hardens.

Alkalinity index TBN

The TBN category determines the total alkalinity of lubricants. The indicator increases due to the influence of dispersing and detergent additives, endowed with alkaline properties. TBN determines the ability of lubricants to neutralize harmful substances and acids formed as a result chemical reactions arising during the interaction of materials. The lower the alkalinity of the lubricant, the less active additives remain. The TBN of most lubricants for units that burn gasoline is most often 8-9, and for diesel engines it is 11-14. When using a liquid, the total alkalinity index will necessarily decrease as a result of the exhaustion of the neutralizing additives. A significant drop in TBN can cause corrosion and even damage to engine components.

Acid number TAN

This is an indicator of harmful oxidation products contained in the lubricant. The lower the TAN value, the better the conditions for the fluid to work in the engine. This significantly increases the remaining oil life. Promotion TAN numbers means that lubricants are beginning to oxidize. This is facilitated by the length of the operating period and the approach of the operating temperature to critical values ​​for the lubricant. The total acid number is usually determined in order to analyze the functional state of the lubricant, which implies establishing the level of oxidation of the liquid and the acidic products of gasoline combustion contained in it.

Required amount of liquid

Every driver must find out how much oil to fill in the Nissan X Trail. In a model with an MR20DE engine, the minimum sufficient fluid volume is 4.4 liters, and if a QR20DE unit is installed, 3.9 liters are required. The QR25D E engine will contain 5.2 liters of lubricants.
Viscosity index
A fairly wide temperature range of the functional suitability of motor oil contributes to the normal operation of each engine, regardless of changing environmental conditions. The nature of the change in oil consistency under the influence of different temperatures is presented in the form of a viscosity index. For ordinary oils with a mineral base component that do not contain viscosity additives, this index most often corresponds to 85-100. Materials containing viscosity additives may have a value of 120-150. For liquids that have undergone a deep cleaning procedure, this index usually approaches 200.

What will be needed for replacement?

Not a single Nissan X-Trail T31 oil change is complete without several components:

Main components of the oil

Every motor oil consists of two components: a base oil and additives. Functional Features lubricants are determined through chemical analysis of the constituent elements. To improve and change these indicators, various additives are used, with the help of which the performance characteristics of any oil, even those not developed using the highest quality base components, are significantly increased.

With prolonged use of lubricants and under the influence of severe loads, which is normal for each motor oil, all useful additives cease to act, as a result of which the final properties of all oils used for more than the prescribed period will depend only on the level quality characteristics basic component. Basic part Each brand of lubricating fluid consists of mineral as well as synthetic components. Mineral Basics are extracted by purifying certain fractions of oil, and synthetic ones are formed as a result of the synthesis of various gases. The combination of mineral/synthetic with a corresponding ratio of 75/25 is usually called a semi-synthetic motor oil base.

DIY oil change procedure

Every driver must find out how to change the oil in a Nissan X Trail on their own. To do this, it is recommended to remember a simple sequence of actions:

1. The car is driven into a pit;
2. The filler neck plug is unscrewed so that the waste liquid drains out better. It is recommended to check the quality o-ring located on the cover. If necessary, this element is replaced. Some people recommend installing a new ring every oil change;
3. Use a key to unscrew the plug that closes drainer. The used oil is poured into a previously prepared container;
4. After this, the drain hole is screwed tightly;
5. New engine oil is poured into the neck in sufficient quantity;
6. The neck plug is screwed on.

Any oil is a set of hydrocarbons combined with a certain number of carbon atoms. All these atoms can be connected into straight elongated chains or into branched ones, reminiscent in their structure of a tree crown. Quality performance characteristics motor oils directly depends on the nature of the connection of the above atoms. The straighter the chain, the better the quality of the fluid. Molecules with a branched atomic structure fold more easily when exposed to cold. To improve quality properties, a hydrocracking procedure has been developed. The chains of atoms are straightened and stretched to the required size. In this way, a synthetic motor oil base is obtained. Today, reproducing such a reaction is not difficult. Each manufacturer achieves linear straightening of chains and sets them to the required length.

• Engine oil selected carefully;
• The more often lubricants are replaced, the better;
• The use of additional additives and additives with liquid is not recommended;
• The oil level is checked by the marks on the dipstick;
• Lubricants should not be purchased from unreliable suppliers.
• It is recommended to change the oil in the NissanX-TrailT 31 every 10,000 km.
• Today, every car enthusiast is obliged to learn how to change the oil of a Nissan X Trail with their own hands.

Nissan X-Trail is Japanese a passenger car, issued to everyone famous car manufacturer Nissan Motor. Nissan X-Trail belongs to the class compact crossover and has three generations.

1st generation T30

The first generation was produced from 2001 to 2007 of this car which was worn Nissan name X-Trail T30. The Nissan FF-S platform was taken as the main base; it was also used in the production of such cars as Nissan Almera And Nissan Primera, and the car design itself was made in the style Nissan Patrol. The car has gained particular popularity due to its comfortable and spacious interior. It is worth noting that dashboard It is not located on the driver's side, but in the middle of the dashboard. The first generation was equipped with in-line four-cylinder engines, the volume of which ranges from 2.0 to 2.5 liters. In 2003, it was decided to carry out a small restyling, during which the bumpers and dashboard were changed.

Engine Nissan QR20DE 2.0 l

• What kind of engine oil is filled from the factory (original): Synthetic 5W30
• Oil types (by viscosity): 0W-30, 5W-20, 5W-30, 5W-40, 10W-30, 10W-40, 10W-60, 15W-40, 20W-20
• How many liters of oil in the engine (total volume): 3.9 liters.

Engine Nissan QR25DE 2.5 l

• What kind of engine oil is poured from the factory (original): Synthetic 5w30
• Oil types (by viscosity): 5W-30, 5W-40
• How many liters of oil are in the engine (total volume): 5.1 liters.
• Oil consumption per 1000 km: up to 500 ml.
• When to change oil: 7500 – 15000

Why bother so much? I couldn't get through the text - there were a lot of letters.

Unfortunately you are being misled. For modern engines Nissan viscosity 40 is too high (native 30) and this increase leads to increased consumption fuel and loss of power.

And here are some more letters on the topic, but we’re not at school, you don’t have to read them...

Scientology oils

The “oil” theme was suggested by the incident of fine-tuning a tuning engine at the stand. They collected it from good details, with individual adjustment of the gaps, they ran it in (the oil was “magpie”), they took down the specifications, everything was ok. And when the client arrived, they filled in the “fifty”, on which it was planned to drive the motor in the future. Naturally, they expected an increase in momentum and gratitude customer...

However, everything did not go as it had before: the engine even “by eye” became “dull”! Measurements at the stand confirmed a loss of 12% power per high speed. But the “fifty”, judging by the annotation, is specially designed for tuning and sports engines. What's the matter?

THICK LAYER OF CHOCOLATE

So thinner or thicker? Oil workers are laconic: they say, the higher the viscosity of the oil, the thicker the oil films formed in the engine friction pairs - in the bearings crankshaft, under piston rings... And the thicker the better: after all, they protect against wear. Engine experts agree, but remind us: engine power, oil consumption due to waste, and even the temperature of its parts - and therefore the overall reliability of the engine - also depend on the viscosity of the oil. Therefore, in relation to viscosity, “more” does not mean “better”: we must look for a certain optimum for each specific engine. This is what we'll do.

SAE - ONE, SAE - TWO! OPTIMUM?

First, let's measure engine power and fuel consumption on various oils: we will identify the dependence of engine behavior on oil viscosity. Then we will evaluate the effect of oil properties on wear rate. Before testing each type of engine (in this experiment - VAZ-21083), we disassemble it, weigh the piston rings and bearing shells. We reassemble and fill in the test oil, run it for an hour. Then we test it for 20 operating hours in accelerated wear cycle modes. Additionally, we simulate starting modes. Upon completion, disassemble again, weigh the liners and rings again. We subtract, divide by time - we get the wear rate in the accelerated test cycle.

For three oils - SAE 5W-40, 10W-40 and 15W-40, the results obtained were within the measurement error limits. Therefore, when the engine is warm, the first digit in the oil designation does not affect either power or consumption! As for the resource, it is obvious: what faster oil begins to be pumped through the lubrication system, the lower the intensity of “starting” wear. It is important for us: the smaller the first digit, the less wear the engine wears out during a cold start. By the way, this will also be noticeable in the behavior of the car - with such oil it begins to take on the load faster as it warms up.

With the second number everything is much more complicated. The graphs of the dependence of engine torque on oil viscosity immediately showed the same optimums mentioned above. It was also confirmed that as the speed increases, the optimum shifts to a zone of more high viscosity. So, if the engine primarily operates at moderate speeds (2000...3000 rpm), typical for operation in the city, then the “magpie” is closest to the optimum. But above 4000 rpm the optimum shifts to “fifty”.

What about the resource? If we neglect starting wear, which is mainly influenced by the additives included in the base package, then the relationship is simple - the higher the viscosity, the less wear.

FROST WILL STRIKE...

There is an opinion that for the winter it is better to fill in oil with a lower viscosity, thinner. That is, in the SAE index both the first and second digits should be smaller. With the first, everything is clear - after all, the maximum negative operating temperature is determined by it. But extremely low temperatures do not always occur and not everywhere: in most regions of Russia it is more common to drive at a moderate “minus”. And here again the second digit of the index becomes important. Let’s try to figure out how it influences.

So, despite a fair bit of frost, we finally started up. And during the warm-up stage, the higher the oil viscosity, the higher the friction losses. This means that to achieve the same speed idle move You will have to burn more fuel than in warm weather. Friction is generally proportional to viscosity, and how much does it increase with low temperatures Oh? They measured: at a temperature of 20°C, the viscosity of the “thirty” was 666 cSt, the “forty” was already 917 cSt, and the “fifty” was 1343! That is, twice as much as the most “liquid” of the oils we took. And warming up in winter takes a long time, which means we consume noticeably more fuel using viscous oils. There is no need to talk about toxicity - the mixture needs to be enriched.

However, engine friction units do not look at the label - real, operating viscosity is important to them. This viscosity, as we showed earlier, has a clearly defined optimum. But in winter, the oil in the pan is 20-40 degrees colder than in summer. Of course, it warms up additionally in the bearing, but its operating temperature is still lower. Since the discreteness of the viscosity classification according to SAE is quite rough, the conclusion is simple - in the cold it is optimal for efficient work engine friction units will have oil with a viscosity that is “ten” less - for example, 30 instead of 40, 40 instead of 50.

WHERE DID THE “HORSES” FLAVE?

Let's return to the beginning of the article: why did the engine become “dull” on “sports” oil? Having disassembled the engine, we saw a picture characteristic of the beginning of the temperature rise of the pistons in all cylinders. But everything was fine with 10W-40 oil? The fact is that the oil films formed by the piston rings create serious thermal resistance - after all, 60-80% of the heat received by the piston from the gases in the combustion chamber is removed through the rings. And the thermal conductivity of the oil is very low. And the thicker the film, the less heat is removed from the piston - its temperature increases, which means the diameter of the part increases. By the way, clearance tolerances by size groups take into account the possibility of engine operation on oils of clearly defined classes. And “fifty” is not among those recommended by AVTOVAZ...

So, a simple transition from “forty” to “fifty” for our engine leads to an increase in the piston temperature by 8-15 degrees, depending on its operating mode. But who takes this into account when choosing oil?

And further. Obviously, the thicker the films remain in the cylinder, the more oil is consumed due to waste. Therefore, if you use a more viscous oil, do not be surprised if its consumption increases.

SO WHAT OIL TO POUR?

Answer to main question simple: only those viscosity groups recommended by the manufacturer. Moreover, it is the MOTOR, not the OIL! But even here there is a choice - often the manufacturer recommends two neighboring classes. Which one to choose, the results given speak quite clearly. If the operating mode is closer to urban, then the oil has a lower viscosity class. If the car drives more often on the highway, then would be better suited more viscous - will allow you to save a little on fuel. But all this applies to a motor with a low degree of wear. But the old, sick " iron horses» low-viscosity oils are clearly contraindicated. This is in the summer... What to do in the winter - read above!

Crossover with angular shapes, spacious interior and an attractive price tag, the Nissan X Trail was introduced to the car enthusiast community in 2001. Initially, the car was designed on the Nissan FF-S platform; with the release of the second generation of the X Trail model, the platform also changed: the manufacturer decided to release a crossover based on the Nissan C, which has proven itself well in the SUV.

Today the production of the third generation has been launched. The base is considered to be a 2.0-liter power unit with a capacity of 147 Horse power. To provide stable operation engine must be carried out timely replacement motor oil. That is why many owners are interested in the question of what oil to pour into the Nissan X Trail engine.

In most cases, the manufacturer in the operating instructions for the car provides several names of the most suitable motor oils for a particular engine. IN in rare cases there is a link to a specific brand, and if this happens, then the manufacturer specifies a specially manufactured lubricant for engine modification. Most cars Nissan X-trail equipped with QR25DE and QR20DE power units, this mainly applies to units produced between 2000 and 2007. These two motors are best suited to a special motor Nissan oil, with the following distinctive features:

• 5-liter container 5W-30 with code KE900-90041;
• 5-liter container 5W-40 with code KE900-90042;
• 5-liter container 10W-30 with code KE900-99942;
• 5-liter container 5W-40 with code KE900-90042.

Depending on operating conditions, it is necessary to select engine oil with necessary level viscosity This is enough important characteristic, on which each power unit manufacturer places the main emphasis, and only then secondary parameters are taken into account, in particular, the brand itself. According to its intended purpose, a lubricant must form a high-quality film that can protect engine components and assemblies from excessive frictional loads. This means that in a region where low temperatures prevail, down to -30 degrees Celsius, you need to select a universal lubricant, for example, 5W30.

Sometimes it is impossible to get one or another motor oil for one reason or another. In such cases, you can resort to using alternative option from another manufacturer, but do not neglect the instructions in the documentation regarding suitable viscosity levels. The whole point is that Nissan engines X-Trail has certain gaps inside that are filled with lubricant, thus ensuring normal operation power unit. If you choose too thick or thin motor oil, quite a lot may happen. serious damage. For this reason, in no case should you be guided only by your own preferences when choosing products for your car’s engine.

It is worth considering the following nuances when purchasing oil for the Nissan X-Trail:

• As a rule, tolerances are applied to the canister of liquid, which indicate which specific brands of cars are allowed to use this lubricant;
• Do not throw into the background the base of the liquid: synthetics, semi-synthetics, or mineral water. Among Nissan X Trail owners there is an opinion that for engines with high mileage the best way semi-synthetic or mineral motor oil is suitable, due to the fact that these types of fluids have the least cleaning properties, which is important for power units with a certain amount of carbon deposits on internal components;
• Can be used all-season oil, if the manufacturer allows it. It can be used all year round, but you need to take into account the temperature range at which the car will be operated.

As for Nissan X Trail cars, which are equipped with new MR20DD power units, here the manufacturer still insists on using original oil from Nissan with a viscosity of SAE - 5W-30. In case of temperature changes, you can switch to original products at 10W-30 (- 20 and + 40 Celsius), or to 15W-40 if the ambient temperature reaches 40 degrees Celsius or more.

Reviews from car owners

It is also worth saying a few words about diesel modifications. Nissan assures that it is best for owners of such crossover modifications to use the original synthetic oil. This lubricant provides the highest degree of protection of engine parts and components from rapid wear, and also contributes to an easier start during low temperatures. Fundamental differences in choosing the appropriate substance for diesel engine No. If the recommended oil is not available, a substance with a viscosity for a specific temperature range. Next, we’ll talk about what kind of oil the drivers themselves fill into the Nissan X Trail engine.

Nissan X-Trail T-31

1. Georgy, Moscow. Greetings. I have a 2007 Nissan X Trail, second generation T31. The engine is 2.0-liter, power 140 horses. I'm completely satisfied with the car weak points she has practically none. The mileage has already exceeded 180 thousand kilometers. I'm pouring it now original oil Nissan 5W-30. Before that I used 0W20 Eneos Sustina, and then they told me that during operation on increased loads It is best to avoid such a substance. Indeed, I noticed that the engine became quieter at high speeds, some extraneous sounds. In general, I can say one thing - the 2.0 Nissan X-Trail engine clearly does not like too viscous oils.
2. Maxim, Tula. Crossover 2014, 2.0 engine manual transmission transmission I have always preferred to change the oil myself. Everywhere they write that replacement must be done every 10,000 km, but I do it a little earlier - after 7,500 km. You can change it even every 1,000 km, but is there any point in this? I doubt it, but there’s no point in delaying the replacement. I use exclusively the recommended Nissan 5W-30 product. Very high quality, but expensive lubricant. In any case, if you want your car’s engine to have no problems, follow only the instructions of the engine manufacturer and nothing else.
3. Vasily, Sochi. My car is 2013 of the year Nissan X-Trail T-31, the car is no longer under warranty. Enjoyed it various oils, therefore, I have something to say. I also looked for reviews from owners, asked friends what oil was best to pour into the X-Trail engine. After years of driving a car, I realized one thing that only a special lubricant from Nissan is best suited. But it has one very serious flaw - high price. As inexpensive alternative brands, I recommend Mobil 5W-30 and Castrol 5W-30. These are quite good products, and inexpensive, which are also recommended for use in service centers.

Based on the findings Nissan owners X-Trail T-31, we can come to the conclusion that the most suitable oil for a car’s power unit is Nissan 5W-30. Due to the fact that many drivers prefer to change the substance earlier due date, it is possible to switch to more accessible and cheaper options - Mobil, Castrol, Shell with a viscosity rating according to SAE - 5W - 30.

Nissan X-Trail T-32

1. Vyacheslav, Novosibirsk. I want to give one simple piece of advice to owners of new crossovers: don’t rack your brains with the choice. suitable oil. If the car is under warranty, go to service center and let them change it to 5W-30, 5W-40 is acceptable. I have a 2016 X-Trail with a 2.5-liter QR25DE engine. The engine instructions indicate a viscosity of 5W-30, it is best not to deviate from this rule, because later repairs can cost a pretty penny. It is also advisable to use original products Nissan, when the engine is used and the car is not under warranty, you can find suitable options among Castrol and Shell, but best of all, pay attention to ALF 5W-30.
2. Sergey, Minsk. I now have a brand new 2018 Nissan X-Trail T-32, so far I don’t know of any problems with the oil. But I can say from experience Nissan Qashqai, you need to fill in products from Nissan. When I filled in the American spill Mobil 1 at Maintenance 1, the oil quickly darkened, the engine began to run unstably, and I had to top it up. In general, after that I switched only to the original, yes, it’s expensive, but what should I do? Nissan engines are finicky, you need to monitor the quality of the fuel, otherwise problems cannot be avoided in the future.
3. Valery, Riga. I purchased a Nissan X-Trail two years ago with a 2.5-liter QR25DE engine paired with a manual transmission. The manual says that you need to use SAE 5W30, 5W40, which, in my opinion, is too thick for this engine. I heard the same version from experienced auto mechanics, who said that with such a substance, after 100 thousand kilometers, the rings become stuck, and the oil begins to burn. Perhaps these are guesses; I cannot somehow refute or confirm such an opinion. So far I have not approached this mileage milestone. All this time I used German products Liqui Moly Synthoil High Tech 5W-30. I change it after 7-8 thousand kilometers. So far the flight is normal.

Owners of cars with new engines prefer to use products from Nissan, or high-quality analogues eg motor oil German made Liqui Moly with viscosity 5W-30.