There is probably no better lubricant for riding in tough conditions than 0w40. Her performance is fully consistent with the tasks that she performs. Before pouring this engine oil into your own car, you should at least familiarize yourself with the pros and cons of various oil fluids. This will make it possible to correctly apply lubricants, to correctly select the optimal car oil. It should be borne in mind that today the stores sell products of many different brands, in which it is difficult not to get confused.
Synthetics
Synthetic oil is produced by an artificial method, mixing the main fluid and additive substances. The creation of this category of motor oils is due to the fact that the operating conditions of the motor sometimes change. After turning off the engine, it cools down, and after starting it heats up.
When driving, the engine operates in various modes. The temperature, friction speed of the contacting parts and many other parameters change. In view of this, it became necessary to produce an oil that has technical characteristics that do not change due to various factors. At a certain stage in the automotive industry, manufacturers thought about the stability of lubricant performance and its effective use in any conditions.
Viscosity comparison between synthetic and mineral oil The mineral water was unable to ensure the invariance of properties due to its own limitations, therefore, scientists have developed synthetics that, according to their own parameters, are optimally suited for long-term use. The advantages of synthetic motor oil include:
- stable base fluid. Synthetics are made from a base that is resistant to external influences. It has no unstable components. In view of this, parts of the engine have excellent protection, the oil does not change its characteristics for a long time, both in winter and in summer;
- small amount of additives. Synthetics do not need a large number of additives, because the base plays the main role. The more base fluid in the oil, the longer it will last;
- long life of additives. Synthetic grease is resistant to oxygen, therefore, additive substances “live” for a long time;
- stability under high temperature conditions. Lubrication performs its own task even at high speeds;
- reduction in heat generation. Parts of the engine heat up less, therefore, it will work longer;
- strong oil film. Allows lubrication to protect engine parts as much as possible by forming a film on contacting parts;
- simplification of starting the engine in the winter season;
- cleaning the engine from dirt and soot;
- excellent flow properties in cold conditions.
Engine oils 0w40They are all-weather synthetics, which are recommended to be filled in in winter. However, they perfectly protect the engine in the summer season.
Indicators and marking 0w40
If you want to know what the decoding of 0w40 is, you need to understand its markings. In accordance with the SAE world classification, all lubricants are divided into:
- winter. They are marked according to SAE with the letter "w". Motor oils of this category are optimal for use in the winter season; they lubricate the internal parts of the engine well;
- summer. Marked according to SAE number. Optimal for use in summer;
- all-weather. The best option. They do not need to be drained from the engine when winter/summer has arrived, meaning they are suitable for any season.
It must be remembered that the lower the SAE viscosity index, the thinner the lubricant. Thick motor oils are effective in hot weather, liquid oils in frosty weather. 0w40 oil has "0w" and "40" in the SAE marking. This means that it is all-weather, it can be added to the engine both in summer and in winter. The numbers "0" and "40" indicate low and high temperature viscosity. The temperature limits are:
- in winter - from minus thirty-five to minus forty;
- in summer - from plus thirty-five to plus forty.
It becomes obvious that driving 0w40 in summer is possible, but not very rational. It is better to use it in winter.
The main advantages of 0w40 lubricant:
- fully meets the requirements of most automakers;
- has excellent performance indicators;
- makes it easier to start the engine in cold weather;
- saves fuel, as it is an excellent lubricant;
- well protects the internal combustion engine, this makes it possible to reduce the wear of its components;
- cleans the power unit from soot.
Despite the fact that this car oil has high performance indicators, before using it, it is advisable to consult with specialists in the repair and maintenance of cars, and familiarize yourself with the technical documents that came with your car.
Comparison with other oils
5w30
Some drivers do not understand which oil is better: 5w30 or 0w40, whether they can be mixed, what is the difference between them. 5w30 oil has the following temperature limits:
- maximum - plus twenty-five degrees.
It can be seen that the difference with 0w40 is in a smaller temperature range. Therefore, it is better to buy 0w40 if you live in a very cold/hot area. If you mix lubricants, nothing bad will happen.
5w40
5w40 oil is a semi-synthetic that has almost the same viscosity as 0w40, as evidenced by the temperature limits:
- minimum - minus thirty degrees;
- maximum - plus thirty-five degrees.
If we compare 5w40 with 0w40, then the latter is better, as it can be used at a lower temperature. Many motorists do not understand whether these two oils can be mixed. This is not recommended unless otherwise stated in the manufacturer's instructions.
0w20
Car oil 0w20 is completely unsuitable for hot summer conditions, unlike 0w40, because it has the following temperature limits:
- lower - minus thirty-five degrees;
- top - plus fifteen degrees.
In the summer in Russia, you can’t ride on such a lubricant, because it does not have sufficient high-temperature viscosity. Mixing with 0w40 is not recommended.
0w30
It is possible to drive on 0w30 oil in a not too hot summer. It differs from 0w40 in that its upper temperature limit is plus twenty-five (ten degrees difference), that is, it has a lower high-temperature viscosity. Mixing with 0w40 is possible, but it's best not to.
5w50
5w50 is commonly used in professional motorsports. It can properly perform its own task even at a temperature of plus forty-five. The difference with the "magpie" lies in the high-temperature viscosity. This lubricant has it higher. However, it is wrong to make comparisons like “5w50 vs 0w40”, since these oils are used in different areas. The first is optimal for racing cars, the second - for ordinary cars with a gasoline / diesel engine.
Summing up, we can understand that the Sorokovka is an excellent choice for city driving in Russian conditions. It is known that in Russia there can be extreme heat in summer, and severe cold in winter. 0w40 is intended just for such climatic conditions. Using it in a milder climate will not be very rational; it is better to fill in a different car oil, for example, 0w20.
We have collected the maximum selection of reviews on the use of 0W40 engine oil from different motorists. Please use the comment form below to add your feedback.
Ivan My review on the use of Mobil 0w40 oil on Lada Kalina, poured this oil over 100 thousand km. mileage, changed every 10 thousand km., I was frightened that after Mobil a "golden coating" remains on the engine, the so-called trace of burnout of additives. I took it apart, looked, everything is clean and excellent, I recommend this engine oil to everyone. Here's what the engine looks like after 100,000 miles:
Max The viscosity of 0w40 will not make the engine worse in winter (without extreme temperatures), the only point is that if the engine had a tendency to eat oil at 5w40, then with 0w40 its appetite may increase slightly.
Aslan Review about Shell Helix 0w40 engine oil, I fill it in for a year, I don’t even really feel the difference how the starter lubricates, either at -25 or at -35 it starts up equally well.
Eugene. I pour Castrol 0W40 engine oil into my Daewoo Matiz and am very pleased with it. The car starts after long parking in any frost, it drives well, I don’t even know what else to write in the review, but I’m happy with everything.
Alexei With a very cold start, when the temperature is on average -35 degrees, the oil pressure lamp is on for about 1 minute, I use Mobil 0w40 oil, so I think should I replace it with another one or leave it as it is?
Nicholas In my opinion, 0w40 is a good engine oil that is suitable for an unworn engine, especially in cold winters. If you pour it into a motor that has already seen the types, then get ready to pour it during its operation. I went with Visco 7000 0W40 in the review, I can’t say anything bad about it, the oil is like oil, it completely satisfied me and my car.
Nikita I fill myself with GT 1 0W-40 SM cleans the engine perfectly (in its advertising, the emphasis is on cleaning properties), the engine starts with a half-poke. The brand is not very promoted, you won’t run into a fake, it is sold in iron canisters.
Sergey I want to share information about Shell Helix Ultra 0w40, information from the garage of one organization servicing auto transport. For example, Volvo S80 2.9 has already traveled more than 400 thousand kilometers without engine overhaul, Opel Omega 300 thousand km. mileage, actively used in work, the motor is like new.
Valentine. Review about Castrol EDGE 0W40 synthetics, I began to fill it for a very long time, after a negative case with, when on a diesel engine I had a gasket squeezed into the heat exchanger and oil began to enter the cooling system.
Video reviews about 0w40 engine oil:
1. The oil used is Mobil 1 0w-40, the air temperature is 35 degrees, the canister stood for two days on the balcony, we evaluate the fluidity and general condition. The general condition is good, although it looks like honey, but it flows quite cheerfully. The author immediately warns that after a run of 7 thousand km. its condition worsens significantly, it loses its properties. This information is for those who like to drive 15 thousand km. without replacement.
2. Testing oil 0w30 and 0w40 of several brands at a temperature of -41 degrees. Participated Mobil 1 Fuel Economy 0w30, which, according to the results of the test, took 1st place, on the second ELF Excellium full tech 0w30, on the third place Castrol Edge 0w40 and last place Motul 8100 X-max 0w40. As you can see, if we evaluate the fluidity at low temperatures, then the winner is 0w30.
We are not surprised by the vagaries of the weather. But how to help the car adapt to unpredictable weather? In the same Moscow in winter it can be minus thirty-five, and plus five. And in the summer, yes, in the sun - as much as forty! What kind of oil to choose so as not to flinch from the weather forecast, and every winter start would harm the engine as little as possible? There seems to be a recipe: there are cans of 0W-40 oils on the shelves.
Very tempting! Gurus assure: the smaller the first number, the easier it is to start the engine in the cold. But then you remember that modern oil lasts a long time, nursing more than 15 thousand km. I won’t change it just because winter has changed to summer or vice versa! But will the motor like to work in the summer on oil that was selected for the cold winter? Here we will check. So, the expertise of motor oils for extreme climates!
Member names are big: Motul X-max, Castrol EDGE, Mobil 1 New Life and Liqui Moly Synthoil Energy. All oils are expensive, quality groups are according to API SM, and Mobil 1 is even SN / SM.
EXTREME FOR OIL
What will we check? It is necessary to catch all the parameters that affect the operation of the motor in a terrible cold, and when it's hot around. To do this, we had to modify our methodology for resource tests.
The limiting cold start temperatures will be determined by the pour point and the conditional crankshaft cranking temperature. The latter is indirectly affected by the viscosity index. Comparative costs of starter power during a cold start allow us to estimate the moment of mechanical losses of the engine.
To make the engine start easier, the oil must be less viscous. But after all, both the wear rate and friction losses depend on the viscosity ( ZR, 2008, No. 3). Therefore, it is important to know what the "zeros" will bring at equally extreme positive temperatures: we will artificially raise the temperature of the oil in the sump, specially heating it. To do this, we will cut nozzles washing the pistons into the oil line. Control measurements of temperature showed that it increased by 15 ... 20 °C.
That's not all! Both cold and heat increase the rate of deposit formation. Frost promotes the growth of low-temperature deposits in the oil channels, and high temperatures increase the level of contamination of the combustion chamber, including the most dangerous variety - varnishes deposited on the side surfaces of the pistons and on the valve guides. They interfere with the normal operation of the rings and can lead to stuck valves, which is equally unpleasant. We will also check the level of these deposits during a long life test.
In order to have something to compare the “great” with, the usual semi-synthetics 10W-40 of a weak quality class SJ were allowed to participate in the test. Results - in tables, look and compare. Note that to measure the physicochemical parameters, we took not fresh oils from canisters, but those that had worked for a given time on the bench.
All tables open in full size on a mouse click.
IN WINTER
All zeros, as expected, showed very good low-temperature properties. But what is interesting: the two main parameters that characterize the starting conditions in cold weather are the pour point and the conditional crankshaft cranking temperature, as it were, in antiphase! See for yourself: the record pour point was found in Castrol EDGE: as much as -52 ° C, but it also has the highest conditional cranking temperature: “only” -25 ° C! And Liqui Moly has the opposite picture: the first indicator is worse than the others, but the second is better. Perhaps the most balanced are Motul 8100 X-max and Mobil 1. And their freezing temperature is not bad: -48 ° С, and the cranking temperature is quite low: -29 ... - 28 ° С. For the middle Russian latitudes and even for the North, this is optimal. By the way, these oils have the highest viscosity index: 190. Well, Motul 8100 X-max also distinguished itself by the lowest power that the starter needed to spin up to starting speed.
We look at the table of low-temperature deposits: they will grow in the winter in the first place. Here, as for any dirt, the principle “soil less - clean clean” works. The amount of contaminants is determined by the composition of the base oil, and the quality of their cleaning is determined by the structure and volume of the additive package. Here the Motul 8100 X-max looks better than others.
IN SUMMER
On the base mineral water, wear in hot conditions turned out to be quite noticeable: the motor obviously had a hard time. The masters worked much better: this is clearly seen in the wear values of the piston rings and bearing shells. The parameters of power and fuel consumption, periodically measured during the tests, also confirmed the observations. The best results were shown by oils with the highest viscosity index - Motul 8100 X-max and Mobil 1. With an equivalent viscosity in cold weather, such oils have a viscosity that is closer to optimal universal high-temperature viscosity, which ensures stable formation of lubricating layers that protect against wear and reduce friction. And the lowest level of high-temperature deposits was shown by Castrol EDGE and the same Motul 8100 X-max.
READY FOR CHALLENGES!
So, we can say that even a new ice age will not prevent us from starting the engine. Unless, of course, synthetics of class 0W-40 are filled there. And there is no need to change it before the summer heat either: with this oil, the engine feels confident even when overheated.
But, of course, choosing a good oil is only half the battle. Candles, a battery and a reasonable gasket between the steering wheel and the seat should not be forgotten when the season changes.
LEARN MORE
Motul 8100 X-max 100% Synthetic, France
SAE 0W-40, API SM/CF, ILSAC GF-4
Price: 2500 rubles. per canister 5 l
Approvals: approved Ford WSS M2C 937-A
A balanced engine oil that performs equally well at all stages of testing. It showed high protective, energy-saving and low-temperature properties. It has a very high viscosity index. A small amount of low and high temperature deposits found when opening the engine indicates a high-quality, stable base oil and a good additive package.
Good protective, low temperature, detergent and energy saving properties.
The price is biting.
Mobil 1 New Life Fully Synthetic
SAE 0W-40, API SM/SN, ACEA A3/B3, A3/B4
Price: 1700 rubles. per canister 4 l
Approvals: approved MB 229.5/229.3, VW 502 00/505 00, BMW LongLife 01, Porsche A40, Lada cars
At a reasonable price we have a quality product. The only one in our group that has officially risen above the API requirements of the SM group. It showed balanced starting properties at low temperatures, good protective properties. But when the engine was opened, the pistons were dirty.
Reasonable price with very decent quality.
We expected more from cleaning power.
Castrol EDGE Fully Synthetic, EU
SAE 0W-40, API SM/CF, ACEA A3/B3, A3/B4
Price: 1750 rubles. per canister 4 l
Approvals: approved MB 229.5/229.3, VW 502 00/505 00, BMW LongLife 01, All Porsche vehicles except Cayenne (V6)
A well-known brand tuned in to a high result, and expectations were justified. The lowest pour point indicates a very good base oil. Pistons after testing were practically clean - another confirmation of quality. At the same time, the price is quite affordable.
The lowest pour point, high cleaning power with a decent level of protective properties.
Energy saving parameters are worse than other oils.
Liqui Moly Synthoil Energy, Germany
SAE 0W-40, API SM/CF, ACEA A3-04/B4-04
Price: 2700 rubles. per canister 5 l
Approvals: MB 229.3, VW 502 00/505 00, BMW LongLife-98, Porsche A40, Ford WSS-M2C937-A
The most expensive. It proved to be quite worthy: the lowest conditional temperature of crankshaft cranking, good energy-saving properties. However, cylinder and ring protection is lower than other oils, possibly due to lower high temperature viscosity. But the lowest rate of aging!
Long service life, good starting properties at low temperatures
Price! And a higher rate of wear of the piston rings, revealed in the cycle of long-term tests.
QUESTIONS
- For what reasons does a car manufacturer recommend a particular brand of oil for a particular model?
Based on a database of testing a particular oil on their engines. No manufacturer will test all the oils that exist in nature, this makes no sense.
- How justified is the use of proven cool oils in everyday life?
It follows from the test results that the transition from a simple mineral water to such synthetics guarantees a 3 ...
- Is it justified in modern Russian conditions to use seasonal oils of the "winter-summer" type?
Such a division makes sense, say, for commercial vehicles with high mileage, when the oil has time to exhaust its resource during the season and must be replaced. In addition, with frequent changes and large volumes of filling, the price of oil becomes an important savings factor. True, today you will not find seasonal oils during the day with fire.
- Why, in the presence of several developed oil quality systems - API, ACEA, etc. - are manufacturers' approvals also required?
This is, in general, the usual conflict of interests between the manufacturer (oiler) and the consumer (engineer). All accepted quality systems - API, ACEA, ILSAC - one way or another contain requirements for the physical and chemical parameters of motor oils. And minders need the oil to conscientiously work in the engine all its life - from shift to shift. Therefore, parameters such as the level of high and low temperature deposits, wear protection and energy saving, compatibility with catalysts, oxidation stability, and the tendency to form sludge are important for them. And this is all purely individual, in different engines the same oil can behave differently. Therefore, automotive companies test oils in their engines and issue tolerances based on the results.
By the way, the approval requirements of automobile companies are much stricter than the requirements that oil manufacturers impose on their products - this is humanly understandable.
WHAT AND HOW WE DEFINED
- Kinematic viscosity- the most important parameter of the oil, which determines its performance and applicability to various types of engine. It was determined according to GOST 33–2000 at temperatures of 40 and 100 ºС, as well as at 20 and 150 ºС using the SPbSPU method. Further, the obtained values were approximated for the entire temperature range using special methods.
- Viscosity index- the most important parameter of the viscosity-temperature characteristic (VTX) of engine oil, calculated from the values of kinematic viscosity at different temperatures. It characterizes the degree of "flatness" of the BTX, that is, the difference between the viscosity values at low and at high temperatures.
- Conditional crankshaft cranking temperature- the temperature at which the viscosity reaches a value of 5000 cSt, conventionally taken as the crankshaft cranking limit. It is determined by calculation - by interpolation of the measured VTX for low temperature conditions.
- Pour point- the one at which the oil loses its fluidity. Determined according to GOST 20287–91.
- Low temperature deposits- are formed as a result of decomposition, polymerization and oxidation of oil at temperatures of about 90 ... 120 ºС. They were determined by accurately weighing the control weight elements - the oil pump fungus and the oil separator mesh in the valve cover.
- High temperature deposits- are formed during the decomposition of oil in the zone of operation of the piston group. They were determined similarly to the ELV method using an expert assessment of the amount and color of deposits on the side surface of the piston after long-term tests of a full-scale engine.
Why is it that the most intensive wear occurs at the moment of starting the engine? The fact is that the plain bearings used in the crank mechanism and other mating parts work with inevitable friction against each other. Ideally, there should always be an oil layer between the main bearings, connecting rod bearings and the crankshaft.
In practice, everything happens differently. The crankshaft elements are lubricated under pressure. Oil is supplied to the lubrication points through special channels. When the crankshaft is turned by the starter, there is still not enough oil pressure to supply it to all rubbing parts. As a result, mechanical friction appears between them. Harder metal literally begins to plan and flatten the soft one. On liners, camshaft cams, valve bushings and cylinder walls, microseizes are formed, which further worsen sliding, and engine life is significantly reduced.
In addition, dry friction is always accompanied by an increase in the temperature of the parts, violating the structure of the metal. Especially dangerous is the "dry" start of the engine in severe frost. Many people know firsthand how much sawdust and even shavings flow down together with used oil from the engine sump, which was intensively used in the cold winter period.
Engine oil thickened in the cold exacerbates the situation even more. In this case, the salvation for the engine is the ability of the oil to form a film on the surfaces of all parts. It is this oil film that works until the oil pressure rises and its flow arrives through the supply channels.
In the old days, when many engines did not have pressurized lubrication, their mileage to capital was simply ridiculous by today's standards: only a few tens of thousands of kilometers. In those days, each driver, in addition to the main tool, also carried with him special molds for melting babbitt. Are you ready to build a fire today in severe frost, remove the engine pan and melt new liners? If yes, then this article is not for you.
All engine oils with the 0W40 index are universal for use in all temperature conditions. Even in the conditions of the Arctic cold, such an oil retains its fluidity without thinning and not rolling off drops from rubbing parts.
When is the best time to use 0W40 oil?
These types of oils perfectly retain their fluidity and enveloping properties at low temperatures, which means that they are perfectly pumped by the oil pump and begin to “work” already at extremely low crankshaft speeds. This property is indispensable in winter, especially in temperate latitudes with cold and long winters. But, will oil with a low temperature index of 0W behave well in summer? After all, there are oils with a higher “summer” index, for example, 50 or even 60. Modern engines experience higher dynamic, temperature and pressure loads. Have you seen how butter gathers in drops in a hot frying pan?At extremely high temperatures, the oil may lose its lubricating properties. If this happens in the engine, for example, when standing in a summer traffic jam for a long time, it will inevitably fail even with a working cooling system. Therefore, engine oil must retain its lubricating and heat dissipating properties even at very high temperatures.
0W40 brand motor oils are universal all-season oils due to the retention of their lubricating properties in aggressive conditions over a wide temperature range. Such oil can be used in any seasonal conditions on a known good, unworn engine.
Other properties of motor oils
Equally important is the presence of various auxiliary additives in engine oil. Often it is additives that largely determine the physical and chemical properties of modern motor oils. Many lubricant manufacturers widely advertise their products, focusing on the various properties of additives. For example: washing, restoring, cooling, etc. In terms of additives, the opinions of experts and ordinary motorists differ greatly. Of course, no additives are able to restore worn parts, but some of them are able to fill microseizes and microcracks, thereby extending the service life of many engine components and assemblies.
On the other hand, is there a guarantee that the reducing additives will act "targeted" - settling only on damaged surfaces without clogging the oil channels and not accumulating in the form of indelible deposits? The so-called "detergent" additives, on the contrary, contribute to the effective cleaning of lubricated parts from carbon deposits, slag, coke and other deposits that occur for various reasons (use of inappropriate fuels and lubricants or their poor quality, violation of operating conditions or engine operation as a result of a breakdown of some or systems, etc.).
Detergents in motor oil are undoubtedly useful. Engine parts even visually become much cleaner. However, do not forget that oils with detergent additives should be used for a short period of time. Otherwise, you can get the opposite effect. For example: oil, having washed off all deposits on the parts of the gas distribution mechanism, clogs the oil filter with these deposits, or even worse: it transports these deposits directly to the lubrication channels of the crank mechanism. Such a “disservice” of detergent additives can only please mechanics - minders for giving them a good income.
Another, no less unpleasant side of an oil wash is the appearance of streaks at the junctions of blocks and engine parts. The fact is that detergent additives are so effective that when there is nothing to wash, they begin to wash deposits from the joints: gaskets, bolts, studs. As a result, the oil begins to squeeze out. Therefore, oils containing a large amount of such additives should only be used to eliminate certain problems, for example, to effectively clean the engine from internal deposits without completely disassembling it.
Along with additives that help clean parts, many types of motor oils, especially mineral oils, are able to form deposits themselves as a result of exposure to high temperatures in combination with an influx of oxygen. Simply put, the oil begins to burn, leaving carbon deposits on the surface of rubbing parts. For example, when oil burns out in cylinders, instead of a saving oil film, soot is formed, which has strong abrasive properties. And this means that at the moment the oil burns, an emery wheel passes along the mirror of the cylinders of your engine. Is it worth explaining further how this affects its resource?
Flame resistance, low volatility - these properties are as important in summer as oil's ability to keep fluid in winter. Modern synthetic oils, including those with the 0W40 index, have the ability to withstand high temperatures without significant evaporation and are more resistant to oxidative chemical reactions (burning).
Along with physical properties, motor oils, as well as the additives contained in them, are capable of entering into various chemical reactions with metals at high temperatures. In other words, the additives contained in the oil are capable of causing acidic and alkaline reactions with the internal elements of the engine. Aggressive chemicals contained in the composition of the oil during prolonged use can destroy rubbing metal surfaces, corrode oil seals and gaskets. Therefore, before using this or that oil, you should carefully familiarize yourself with the various additives that make up its composition.
When is it not advisable to use 0W40 engine oil
Despite the large number of undeniable advantages of 0W40 motor oils, in some cases their use will not be entirely justified. For example, if the car is not operated in winter. In this case, maintaining the viscosity of the oil at low temperatures is completely irrelevant. In addition, it is advisable to replace any oil after a long parking of the car due to the condensate formed in the lubrication system, as well as due to precipitation and deposits formed during long-term garage storage of the car.A heavily worn engine awaiting an early replacement or overhaul is also far from the most suitable consumer of 0W40 oil. In this case, it is advisable to use more viscous oils to increase compression and optimize the operation of its systems.
Many older car models can also be very critical to the viscosity of motor oils. Therefore, before filling the 0W40 lubrication system, read the engine operating instructions and the manufacturer's recommendations. If for some reason there is no data on the possibility of using engine oils of the appropriate viscosity, in extreme cases it is advisable to be guided by the rule: the more revving the engine, the less viscous oil it needs for optimal operation. If the engine is worn out, has a high mileage, then vice versa: the greater the mileage, the greater the viscosity of the oil.
Today we will look at 4 main and popular products that are suitable for a turbocharged Porsche Cayenne. It will be relevant for both diesel and gasoline engines.
Let's say you have another MOT, and you need to change consumables and fluids in the engine, the German manufacturer recommends using the purest 100% PAO synthetics for an engine with a viscosity of 0w40. It is the most fluid and durable motor oil of all oil viscosities. Here we have decided.
Everything is clear here, but which brand to choose, what is more preferable Mobile, Motul, Liquid Moli, Castrol ?!
Usually, the manufacturer fills in the original Castrol 0w40, made in Germany, usually only available in liter packaging. This product is significantly different in quality from what is supplied to our Russian market. In general, by the way, if you go to Europe, be sure to buy a local Castrol for comparison, you will feel the difference from the first minutes of starting the engine, not to mention the operation of the car.
Castrol Edge 0w40 in a Porsche Cayenne engine
Nevertheless, let's look at the katrol that is officially supplied to our market and is suitable for Cayenne, this is with an A40 approval. An updated Titanium line with an improved formula of extreme pressure and anti-wear additives, compatible with turbocharged engines.
Sufficiently resistant engine oil, well pumped at low temperatures, tested at "- 34C "provided an excellent engine start. Under normal operating conditions, the car showed good results. The oil provides stable lubrication, withstands normal heating temperatures without overloads. But as we know, this is a Turbocharged Porsche, and without depressing the accelerator pedal to the stop, it is simply impossible, otherwise why generally take this car.
Castrol FST 0w40 in turbo mode - test
In this operating mode, we also checked the oil for wear. And here the results are slightly different. That is, when driving in a mode close to the red zone, the oil already needed to be replaced at 8 thousand km. Plus, I had to add up to 3 liters of engine oil.
At higher speeds, the oil worked less efficiently than when driving in normal mode. Oil burnout affected the quality of the oil film, and when examining the motor, the surface of the parts was in a small black soot, which indicates that this product cannot cope with elevated temperatures and burns out a little, not critical, of course, for such operation, but that’s all same. The coating indicates that the oil will not provide good lubrication of the parts, which will lead to increased wear, and therefore, the motor will collapse faster than we would like.
If you like this brand and you fill in Castrol 0w40 in a piston, then it is advisable to flush the engine with SAE 40 oil or long-term flushing before changing so that the newly filled oil works efficiently and the parts remain as clean as possible. In the case of aggressive operation of the car, it is advisable to do a change once every 8-10 thousand km. And do not forget to check the oil level and top up, it is absolutely impossible to leave the turbo engine without lubrication.
However, for example, Castrol, which is sold in Germany or in the European Union, shows excellent results, so if you have such an opportunity, be sure to buy and try it.
Mobil oil (Mobil1) for Porsche Cayenne application results.
Now consider the following product with an A 40 tolerance. This Finnish product has proven itself quite well as an inexpensive oil in the flagship viscosity segment.
But as for its use in Cayenne, here the product proved to be insufficiently effective. During normal operation, the oil loss was up to 2 liters per 10 thousand km, which exceeds the allowable rate specified by the manufacturer. The product, of course, is compatible with a turbo, but with a heavy load, close to the red arrow, the waste was up to 0.8 liters per 2000 km, which is a lot. On engine parts with a mileage of 38,000 km, a black coating was observed, which indicates that the oil did not effectively cope with the task at an elevated engine heating temperature, and hence the protection of the Porsche Cayenne biturbo engine.
Analysis of used Mobil 0w40
Having collected a little used mobile, the analysis showed an excess of chips and soot in the oil, which indicates that the additives do not do the job and exhaust their limit earlier than intended. Waste also affected the throttle response of the motor, the power dropped significantly during acceleration. When running the car on the slipway, the diagnostics showed a loss of power of 10 hp.
If you are using mobil 0w40, then it is advisable to use it with an additional anti-friction additive, and flush the engine with oil, washing away carbon deposits and sludge that are formed during the combustion process and deposited on the parts. Keratek will additionally provide the best chain properties of the lubricant, which will reduce engine wear and engine oil waste.
When to change Mobil engine oil in a Porsche
Make a change with a run of no more than 10,000 thousand km in mixed mode. If the operation of the car is constantly in a mode close to the red zone, then replace it at 7-8 thousand. As for the pumpability of the mobile in frost down to -33C, then everything is fine here. The Finnish product 0w40 provided an excellent engine start without a hitch. That is, the oil remained quite fluid, and did not thicken in frost, which indicates good quality.
In general, the Finnish product is good and a turbo is possible for use in a Porsche, it corresponds to its price and declared quality.
Continued see two of the most efficient products for Porsche engines. Very interesting results on the use of German and French oils.
