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.

Alexey At 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 oil 0w40, so I'm thinking 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.

Sergei I want to share information about Shell Helix Ultra 0w40, information from the garage of one organization service car 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. A review about Castrol EDGE 0W40 synthetics, I began to fill it in for a very long time, after a negative case with, when on a diesel engine I squeezed a gasket 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 we can see, if we evaluate the fluidity at low temperatures, then 0w30 is the winner.

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 differs significantly 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. During normal operation, the car showed nice results. The oil provides stable lubrication, withstands normal heating temperatures without overload. But as we know, this is a Turbocharged Porsche, and without squeezing the accelerator pedal to the stop, it is simply impossible, otherwise why take this car at all.

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.

On the increased speed 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 Castrol 0w40 in a piston, then it is advisable to flush the engine with SAE 40 oil or a long-term flush 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 result, so if you have such an opportunity, be sure to buy and try.

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 a 0w40 mobile, then it is advisable to use it with an additional anti-friction additive, and flush the engine with oil, washing out soot and sludge that forms during the combustion process and is 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.

In order to ensure the normal, stable and efficient functioning of the internal combustion engine and related systems, it is necessary to choose the right engine oil. This can be done by considering several important factors:

• The temperature and climate of the region in which the vehicle is operated;
• The service life of the car, as well as its total mileage;
• driving style;
• The instructions of the car manufacturer (the fact is that a certain engine is manufactured, conditionally, for a certain type of lubricating fluid). You can find all recommendations in the service book.

You should also consider the basis of the product. On this basis, all motor oils are divided into three types:

• Mineral;
• Synthetic;
• Semi-synthetic.

Mineral based lubricants

The first type of oils is obtained by distillation of fuel oil or processing of industrial crops. As for the technology itself, it is too simple - and this affects the final cost of mineral lubricants. This product has a number positive qualities: it is stable and efficient in operation, and also has a fairly small destructive effect on engine components.

Natural "mineral water" is almost never used in practice. It exhibits good lubricating qualities only in the range, as they say, at room temperature. It may contain a set of additives that allow engine oil to protect the engine from wear, acidity and corrosion. Also, modern lubricants perform tasks related to cleaning the internal walls and engine parts from burning.

During operation at high temperatures, mineral lubricating fluids lose their set of additives, and at low temperatures they become too viscous, making it difficult for various mechanisms to work. These problems are solved in the next product.

Synthetic based lubricants

These lubricants are a product of the synthesis of molecules. "Synthetics" are more stable during operation than mineral or semi-synthetic motor oils. In addition, such a lubricant is less susceptible to external influences. It is necessary to determine the temperature range of the engine in order to select a quality synthetic-based engine oil that will provide high-quality operation. power unit both during cold start and under extreme conditions.

Synthetic lubricants do not exist in nature on their own, they are the result of human development of new technologies. Today it is difficult to imagine the automotive market without synthetic lubricants. This product has the best properties: it protects the internal combustion engine from wear, corrosion, acid residues, and prevents the accumulation of burning on parts. As for the price, it is several times higher than on mineral oils- this is a consequence of the relative high cost of the technology for obtaining this product. But still, it is “synthetics” that saves all cars whose owners live in regions with harsh climatic conditions.

Advantages of "synthetics":

• resistant to temperature extremes, practically does not change the degree of viscosity;
• fluidity at low temperatures is high, which allows the oil to quickly flow to all parts of the engine;
• evaporates much less compared to other lubricants;
• reliably protects the engine from friction, due to anti-friction properties;
• does not require the addition of additives, since most of them are synthesized during the production of lubricating fluid.

Comparison of "synthetics" and "mineral water"

The most important difference between these products is at the molecular level.

Synthetic lubricants are created with certain properties, and mineral ones get theirs from nature. "Mineral water" performs a washing function, gradually removing accumulations of fuel combustion products, and "synthetics" literally scrapes cinders from the inner walls of the engine, ensuring stable operation of the lubrication system channels, as well as the filtration system. Filters and channels of the lubrication system clogged with various accumulations can lead to “oil starvation”, and then to a breakdown of the power unit.

• Different molecular appearance - "mineral water" is formed in natural conditions with a certain set of properties, and "synthetics" appears as a result of industrial production with a certain set of qualities and properties;
• "Synthetics" is more resistant to temperature fluctuations and can be used both at very low and at very high temperatures, which cannot be said about mineral oils;
• The fluidity of synthetic oil allows it to be effective at low temperatures. "Mineral water" in such conditions begins to thicken;
• "Mineralka" is inefficient in operation at high temperatures, since most additives burn out under such conditions. Synthetic lubricating fluid retains its additives under all operating conditions.

Semi-synthetic lubricants

"Semi-synthetics" is obtained by mixing mineral and synthetic bases. There are no documents regulating their ratio, so each engine oil manufacturer independently sets percentage. Most often, about 30-50 percent is the share of a synthetic base and 50-70 - mineral. Each of them is described in detail above.

Comparison of "synthetics" and "semi-synthetics"

The stability of engine oil is a feature that is important for almost every car owner. Synthetic motor oil has certain properties that have been “programmed” into it at the production stage. Therefore, such a lubricating fluid is resistant to temperature extremes and various chemical influences. This allows synthetic oils work effectively both at very low and at very high temperatures.

They reliably protect the engine during operation at any time of the year, since their viscosity level practically does not change under various extreme conditions. Resistance to chemical attacks means that the oil does not change its properties for a sufficiently long period.

Semi-synthetic lubricating fluid is more stable than mineral water, but still does not reach the level of "synthetics". But it is worth noting that under certain conditions it is preferable to synthetic lubricants. One of these conditions is high mileage vehicle: semi-synthetic grease is not as prone to waste as "synthetics". Also, semi-synthetics are more suitable for those cars that operate in temperate latitudes, where the temperature does not fall below -20 C, provided that other properties and performance characteristics fit this engine. "Semi-synthetics" requires more frequent replacement than "synthetics".

So, the main differences are as follows:

• "Semi-synthetics" loses to synthetic oils in terms of resistance to low and high temperatures;
• Synthetic oil retains its qualities better, reliably protects the power unit from wear and does not require frequent replacement;
• Synthetic lubricants are more fluid, which allows them to penetrate all parts of the engine faster, and this helps to reduce friction and reduce fuel consumption;
• Semi-synthetic oils show excellent cold start performance. Recommended for use in highly accelerated engines running on gasoline or diesel, as well as power units with a turbine.

This information is one of the most important things to consider when choosing engine oil.

Now we need to take a closer look at 0w40 and 5w40 lubricants.

Characteristics of oils 0w40 and 5w40

Oil 0w40

Synthetic 0w40

This product is marked according to the classification of SAE motor oils. The symbol contains two numbers that provide information about the most important properties of the lubricating fluid - this is high-temperature and low-temperature viscosity.

In order to start the engine at very low temperatures, it is necessary to use a not very viscous oil. For summer conditions the opposite is true: the oil film must adhere securely to the parts. In the 0w40 marking, the first digit characterizes the “winter part” of the engine oil (the letter “w” is an abbreviation English word winter - winter), the second digit indicates the properties of the "summer part" of the product. Possessing the properties of both winter and summer classes, 0w40 engine oil is universal or multigrade.

Oil 5w 40

Synthetic oil 5w 40

This lubricant is marked in the same way as the previous one: 5w indicates the low-temperature properties of the oil, and 40 indicates high-temperature properties. This marking refers to the classification created in the 60s of the last century in the United States by the Society of Automotive Engineers (SAE) and has become the main standard for determining the viscosity grade of motor oils. Possessing indices for both winter and summer classes, 5w40 motor oil is also all-weather. It is worth noting that the characteristics of viscosity and operating temperature are the main ones for determining the quality of the lubricating fluid.

There is a special table related to the SAE classification, in which you can familiarize yourself with the properties of certain classes of motor oils.

Comparison of engine oils 0w40 and 5w40

Motor oil includes a base, as well as a set of various thickening additives. It is the additives that endow the lubricating fluid with properties that help to work effectively in winter and summer - this is how seasonal oils do. However, the situation on automotive market now it is such that most of it is occupied by universal all-weather lubricants, which greatly facilitate the life of all car owners. They change their viscosity during operation under the influence of shear rate (lubricant viscosity is higher the lower the shear rate). The degree of viscosity depends on the quantity and quality of the additives in the product.

Engine oils 0w40 and 5w40 contain a different number of thickening additives and, therefore, have different properties, namely, low-temperature viscosity. That is, the indices 0w and 5w are indicators of how the lubricant behaves in cold weather. Low temperature viscosity - important characteristic, on which the safety of the power unit from wear depends, as well as the possibility of a cold start.

The differences between 0w40 and 5w40 engine oils are as follows:

• The first lubricating fluid differs from the second in the temperature range of operation: it can work effectively at a temperature of -35 degrees versus -30 for the second oil. This makes it easier to cold start the engine. Also, the first lubricant penetrates faster into all parts of the power unit;
• At high temperatures, both oils hold an oily protective film on engine parts equally well;
• Most often, the first car oil is a little more expensive.

And a little about the secrets of the Author

My life is not only connected with cars, namely repair and maintenance. But I also have hobbies like all men. My hobby is fishing.

I started a personal blog where I share my experience. I try a lot of things, various methods and ways to increase the catch. If interested, you can read. Nothing more, just my personal experience.

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MANUFACTURER: NK "Select", Russia.

DECLARED CHARACTERISTICS: kinematic viscosity at 100 ° C 14.0-15.0 mm 2 / s, viscosity index 185, base number 8.7 mgKOH / g, density 873 kg / m 3, dynamic viscosity according to ASTM D5293 at -35 ° C 6100 , pour point -50 °C.

SPECIFICATIONS AND APPROVALS: complies with SAE 0W-40, API SL/CF, ACEA A3/B3, complies with MB 229.3, VW 502.00/505.00, currently being tested for MB 229.3, BMW Longlife-98.

DELIVERY TYPE: 1 l, 4 l.

PRICE: 900 rub. (4 l).

CONSUMER ANALYSIS

DECLARED FEATURES: fully synthetic, multigrade engine oil for gasoline and diesel engines, developed according to the modern technologies using the latest multifunctional additive packages. Provides guaranteed start-up and lubrication of the engine in winter period at significant negative temperatures (up to -40 °C), as well as reliable protection against overloads and high temperatures. It has excellent anti-friction properties, which leads to reduced friction and wear. Tested for compatibility with the catalyst. Developed using a "trisynthetic" formula based on high quality polyalphaolefins and esters with the use of a multifunctional additive package. The use of oil in modern engines ensures compliance with the requirements of Euro-2 and Euro-3 in terms of exhaust gas toxicity.

TEST RESULTS

Kinematic viscosity at 100 ° C 14.41 mm 2 / s, viscosity index 182, base number 8.95 mgKOH / g, density 856.6 kg / m 3, dynamic viscosity according to ASTM D5293 at -35 ° C 5102, change kinematic viscosity at 100 °C -28.48%, pour point -45 °C, acid number after oxidation for 5 hours 1.65, pollution factor after oxidation 14.2.

PECULIARITIES: for all parameters measured during testing, this sample fully complies with current standards. A sufficiently high value of the base number makes it possible to assume a sufficiently high saturation of the multifunctional additive package. The results of high-temperature tests indirectly indicate a large base oil resource reserve. A rather low value of the acid number indicates the effective operation of the additive package in terms of neutralizing high-temperature oxidation products, and also allows us to conclude that the oil components are resistant to high temperatures. In terms of dynamic viscosity, this participant also fits into the standards with a fairly large margin. That is, at negative temperatures, the required cranking of the engine crankshaft is ensured. The value of the contamination factor was also one of the lowest, which may indicate good stability of the base oil. But the pour point was not the best, although quite acceptable.