Is it possible to add 5w40 to 5w30. Is it possible to mix engine oil from different manufacturers? Can oils be mixed?

Almost all motorists know that technical condition The car is completely dependent on the quality of the engine oil and the frequency of its replacement. According to the instructions, every 7-10 km the car needs it. A newly purchased car is sold with a pre-filled service center with oil, which is recommended by the manufacturer and is ideal for the power unit. At the same time, the agent of one brand at the service station is changed without pre-rinsing, as it is recommended by the manufacturer vehicle and does not cause concern. This scheme is the best for maintaining the "health" of the machine. But in practice, things look different.

Whether to mix with different technical specifications? Can engine oil be mixed or not? Will this affect the operation of the motor? Can oils be mixed? different manufacturers? Eternal questions on which constant disputes of motorists are conducted.

Some believe that this is absolutely impossible to do, since the stage of washing the motor will be completely excluded. Others assure that there is nothing wrong with this, and this will not affect the operation of the motor in any way.

Both sides are right in their own way. In fact, oils can be mixed, but wisely, following certain rules. Otherwise, it is possible to harm the motor, the result will be its repair.

Can different oils be mixed? Reasons why this is allowed:

• Forced need to add oil.
• Lack of the desired brand of product.

Is it possible to mix oils from different manufacturers? What do experts think about it?

• Mixing is allowed only for oils of the same category. This is the only way to avoid negative consequences with internal combustion engines.
• Mixing is permissible only if the driver plans to drive for a short period of time.

The main point of this procedure is the formation of a new chemical composition, the effect of which is impossible to predict.

When mixing oils from different manufacturers, it should be remembered that even with a thorough removal of the oil, some part of the waste remains. The result is pairing it with fresh grease they don't have full compatibility. Many motorists fear that such a formula will not ensure 100% engine performance.

Mixing theory

As mentioned above, the combination of different oils is possible, but only subject to certain factors that need to be treated with special attention. In order to deal with this issue in more detail, you should know what types of oils are.

Synthetic

It is an oil based on artificial chemicals.

Advantages:

• low evaporation;
• good fluidity at low temperatures;
• in terms of viscosity, it reacts little to temperature fluctuations;
• high durability;
• requires fewer additives.

Mineral

Its most important component is oil. Some call this species organic.

Advantages:

• Environmentally friendly - the amount of chemicals is kept to a minimum.
• Budget cost, which is sometimes a decisive factor when choosing.
• Versatility.
• Availability. Available at all auto shops.

semi-synthetic

The name itself suggests that this is a combination of the first two types of oils.

Advantages:

• Low cost. The price is second only to mineral oils.
• Compatible with vehicles running on any fuel.
• Low evaporation.
• Prevents the formation of limescale.

Allowed combinations of oils:

1. Mineral water with semi-synthetics. If mineral lubricant was previously used in the motor, then mixing with semi-synthetics is permissible. Synthetics with a polyalphaolefin base are also suitable. The following types of oils can also be poured into: polyester, silicone, glycol. In this case, one should take into account such a nuance as the chemical composition of the synthetic product.
2. Synthetics and its mixing. Is it possible to mix the oil with other oils when it comes to synthetics? Almost all today's commodity producers develop products according to European standards. This allows them to be mixed. But it is not a fact that the result will be positive. In some cases, the following troubles may occur: precipitation, foam. They are just kept to a minimum compared to other types of oils. The minimum number of flaws indicates that you have purchased high quality product. Before mixing oils, it must be taken into account that you must carry out the first maintenance with oil recommended by the manufacturer, flushing the systems beforehand.
3. Mixing synthetics and semi-synthetics. If at the time of the oil level drop in the car you had synthetics filled in and only semi-synthetic oils you are saved. Tools such as 5W40 and 10W40, you can mix safely. This viscosity will range from 6W40 to 8W40. by the most the best option a combination of an existing oil with a better one is considered. In other words, semi-synthetic oils can be diluted with synthetic ones. Mixing synthetics with semi-synthetics is allowed only in critical cases.

   

4. Production of one commodity producer. According to many experts, it is possible to mix engine oils of the same brand. This statement is true, since oils from one manufacturer are very similar in chemical composition. In other words, they have the same base, and their chemical composition contains an identical set of additives. Based on this, mixing oils of the same brand is quite acceptable. In addition, motorists should be aware that sometimes there are situations when the same oil is sold under different brands.
5. Oils from various manufacturers. Is it possible to mix oils from different manufacturers? One of the risky mixing options, since no one guarantees 100% efficiency due to different technological processes manufacturing. But this does not mean that the result will immediately be negative. It happens that when combining such oils, minimal foaming and imperceptible sediment are observed. Unfortunately, this happens quite rarely.



Mixing oils 5W30 and 5W40

Oil 5W30 and 5W40 can be mixed. For example, if you have a sharp drop in the liquid level on the road and there is no stock of 5W40 synthetics, but there is a similar liquid with a similar label and markings, but from an outside manufacturer, in this case your manufacturer's 5W30 oil will help you. When adding the specified liquid to the motor, there will be no problems with the operation of the engine. The maximum that can happen is a slight decrease in viscosity. When using all-weather fluid 5W30 or 5W40, the engine starts at a temperature of 35 degrees. The result of this mixing will be small changes in the coefficient of thermal viscosity. This result is also not critical, since negative side will only be visible when the engine is running at elevated temperatures. The driver will just have to take care of the car a little and not overload it.

1. It is recommended to add to the engine only the oil that was originally poured into it.
2. If it is possible to use this type of liquid, products of a similar brand should be used.
3. When buying a product, it must be taken into account that the same commodity producer is able to produce oils under different brands.

Is it possible to mix oils from different manufacturers in an emergency? Critical cases involve the use of other types of products. At the same time, it is necessary to minimize the number of loads and correct the situation as soon as possible by replacing it with the recommended oil.

Little tricks about gear lubricants

Can be mixed transmission oils or not, let's take a closer look. This problem occurs only when the conversation is about the car engine. This rarely happens, but it happens when there is a decrease in the level of lubricant in the gearbox. The answer is quite simple: transmission fluids may be mixed, but only under the conditions specified in the engine oils. They should be similar and practically identical in chemical composition. Such a mixture will allow any motorist to safely drive in a gentle mode for several thousand more kilometers. After the end of the journey, the liquid will have to be drained and replaced with the one recommended by the manufacturer.

It is strictly forbidden to mix motor products and transmission products. Ignoring this recommendation will result in loss of engine performance. You will learn just a killer mixture.

In any case, for efficient engine operation, after mixing the oils, you will have to return to the oil recommended by the manufacturer. Before this, it is necessary to carry out the procedure for flushing the engine:

1. Drain the obsolete agent. Give the car the opportunity to stand a little, so that it merges to the maximum. If possible, tilt the vehicle alternately to both sides. Thus, more liquid will drain.
2. Install new filter and fill with the manufacturer's recommended oil.
3. For three days, try not to overload the machine until the motor gets used to a different kind of product.
4. The next oil change procedure should occur after 10 thousand km.

The engine flush procedure is completed. If you are in doubt about the cleanliness of the engine, reduce service interval and take the car to the service station.

Consider the characteristics of motor vehicles from different manufacturers.

Castrol Magnatec 5W-40 A3/B4

Castrol oil is widely known to motorists for its a high degree reliability and quality. Most high-speed cars use this brand of oils.

When operating a car, motorists should remember that a large percentage of engine wear occurs as a result of starting it. A3/B4 oil allows you to protect it right from the start.

Simple oil, when the engine is idle, does not linger on it, thereby exposing the most important parts of the power unit. Butter Castrol Magnatec 5W-40 A3/B4 wraps around every part of the engine, covering it with a heavy-duty oil film, which is an additional protection at the time of starting the engine. The result of use is to minimize the risk of engine wear.

Where are Castrol Magnatec 5W-40 A3/B4 oils used?

1. Cars running on gasoline and diesel fuel.
2. Engines in which the manufacturer has approved the use of this type of oil.

• envelops and lingers on the smallest parts of the engine;
• forms a dense oil film that allows you to protect the motor from the first to the last minute of starting, thereby reducing its wear;
• when combined with synthetic technology, it protects the engine at different temperature conditions;
• 100% engine protection regardless of operating conditions and types of driving;
• means of the specified brand are demi-season;
• it cannot be faked, because the manufacturer has taken care of protection.

A distinctive feature is the glow in the ultraviolet spectrum. This development of the manufacturer allows consumers to easily distinguish the original from the fake.

"Lukoil Lux SN/CF 5W-40"

Synthetic, all season. Belongs to the premium class.

Purpose:

• vehicles running on diesel fuel;
• supercharged gasoline engines that are installed in cars, minibuses and trucks.

Domestic oil "Lukoil Lux SN / CF 5W-40" refers to synthetic. Judging by the reviews of motorists and tests, this is by far one of the most reliable lubricants in its price category.

It is an officially registered Russian product. Provides the maximum level of protection and meets all the necessary technical specifications.

• prevents the formation of lime deposits in the cylinder and piston high temperatures Oh;
• prevents the formation of sludge at low temperatures;
• has a beneficial effect on seals;
• The chemical composition of the oil makes it easier to start the engine in extreme conditions.

The formation of a protective film on the parts contributes to maximum protection when starting the motor.

Advantages of Lukoil Lux SN / CF 5W-40:

• reduces fuel consumption;
• minimizes the presence of noise;
• is an the best protection engine in any conditions;
• prevents the formation of deposits on the motor.

Lukoil Lux API SL/CF 5W-30 oil

The main scope - Cars and light commercial vehicles where low viscosity lubricants are recommended. Designed for engines of Ford and Renault cars. Positive characteristics are similar to the previous brand.

Conclusion

And in conclusion, it is worth noting that the purchase of motor lubricants must be carried out in a trusted specialized store, which, at your first request, is able to provide a document guaranteeing product quality. And it is best to do this in stores at gas stations. It is unlikely that anyone will answer you for the quality of products bought on the market or just at the curb.

So, we found out if synthetic oils can be mixed. We hope you find this information useful.

The question of adding 5W30 oil to 5W40 never loses its relevance. This possibility is often of interest to many car owners, who, in turn, are in no hurry to mix lubricants, fearing the consequences of such experiments. It should be noted right away that such decisions are not recommended to be made too often. It is advisable to add to the engine such liquid as is already poured there. Attentive drivers always have a small extra can of oil in stock for topping up.

Is it possible to combine 5W30 and 5W40?

On the road, different situations are possible, the need to borrow lubricating fluid other drivers may also experience it from time to time. In such cases, you need to know for sure whether the top-up fluid is compatible with the base fluid.

In order to determine the possibility of a harmless combination of lubricants, it is recommended that you familiarize yourself with the properties of the oil corresponding to each designation in more detail. this species classification.

What is the SAE classification?

This is a classification of motor oil according to the degree of viscosity, introduced by the American Society of Automotive Engineers, which divides lubricants into separate subspecies according to their ability to operate in a certain temperature range.

The viscosity of a lubricant is determined by the nature of the friction that occurs between the molecules of a given substance.

Several types of viscosity can be characterized:

• Kinematic viscosity is measured at two fixed temperature conditions, corresponding to 40 C° and 100 C°. Measurement occurs by fixing the duration of the outflow of a certain volume of liquid from a narrow pressure vessel;
• The minimum temperature at which the oil pump can pump fluid is fixed.
• Dynamic viscosity is measured in mPa x sec. at a temperature effect of 150 ° C.
• The minimum temperature at which the starter can be activated to crank the engine.

The SAE classification provides consumers with information about temperature range operating environment in which the starter will perform its function well, the oil pump will pump fluid through the entire system during a cold start.

By SAE oils are divided into 6 winter (0W, 5W, 10W, 15W, 20W and 25W) and five summer (20, 30, 40, 50 and 60) classes. The larger the coefficient, the greater, respectively, the degree of viscosity of the liquid.

All-weather oils that can perform the necessary functions in a wide temperature range are marked with a double marking that defines winter and summer class, for example, 0W30 means that the lubricant must be poured into the motor with the calculation operating temperature from 0 С° to 30 С°.

The conclusion is that 5W40 fluid is suitable for adding to oil with a viscosity grade according to SAE 5W30. It should be understood that 5W30 is not recommended to be added to 5W40 if the ambient temperature during vehicle operation is above 30 ° C. In such cases, it is not recommended to interfere with the two types of lubricants mentioned. This can adversely affect the flow characteristics of the liquid.

What misconceptions are most often found among the conclusions of car owners?

Some vehicle owners believe that the additives contained in different oils x, can cause the development of a chemical reaction that is dangerous for engine mechanisms. In fact, the characteristics of a modern lubricant, if you do not take into account the worst and highest quality, are approximately the same for all manufacturers, with the exception of individual examples. Of course, every manufacturer wants quality characteristics his products were top notch.

Adding 5W30 fluid to 5W40 or vice versa is acceptable, even if they are made by different manufacturers. There are no such lubricants that can save the engine from problems that have arisen. Thanks to motor fluids, you can only hide these problems for a while and delay the need to resolve them.

To dispel all doubts of motorists, it should be noted that it is impossible to ruin the entire engine by adding the wrong oil.

Some drivers believe that 0W30 oil should not be mixed with other varieties, and only the same product can be used to top up the engine.

This opinion is erroneous, since in modern units lubricants additionally perform the function of a hydraulic fluid. For example, normal operation of VTEC valves or VTC gears is possible only with the appropriate fluid pressure at a particular point. Therefore, when it comes to hydraulic properties, certain viscosity requirements must be imposed on the fluid.

Most likely, this is the reason for the numerous recommendations for pouring low-viscosity lubricants into modern engines. At the same time, the alkaline activity of lubricants should be optimal in order to clean hard-to-reach places from various accumulations. If not fulfill timely replacement or fill in a low-quality product, you can eventually get problems with the engine.

Mistakes in the selection of a suitable lubricant can subsequently cause serious trouble. Fresh oil with a higher viscosity index than 0W30 can be added to the engine and travel 2000-3000 km without worrying about anything. It is best to operate the vehicle only in the city.

Also, among car owners there is an opinion that it is unacceptable to add 5w30 to a motor filled with 5W40 fluid. It will be ideal if the viscosity index of the lubricant being added corresponds to what is already flowing around the engine elements. But, if the liquid pours out of it along technical reasons and will soon be held repair work, you can safely combine various lubricants in any proportion.

Some manufacturers create "crossed" fluids of varying degrees of viscosity, the combination of which practically does not cause negative consequences.

Mixing synthetics and mineral oils 5w30 and 5w40

Is it possible to mix synthetics with mineral water

We can immediately say that nothing bad will happen if you try to mix a synthetic-based fluid and semi-synthetics. This combination can keep the car running for a very long time and nothing bad will happen to it. Naturally, it is better to resort to such solutions only in the absence of the same lubricant. In the conditions of the city, of course, it is preferable to try not to interfere with different liquids.

Possible negative consequences

As mentioned earlier, mixing 5w-30 and 5w-40 fluids may result in a slight decrease in high temperature viscosity. When the amount of lubricant drops sharply and it is not possible to fill the motor with the same liquid, you can use a substance from the same manufacturer, but with a different indicator of the density of the connection of molecules. There is no negative impact on the power plant if the driver decides to mix two different oils of the same brand. There may be only a slight decrease in the level of viscosity.

During the operation of all-weather lubricants with a viscosity of 5w-30 or 5w-40, the engine starts without much difficulty even during heat reaching up to 35 ° C. If you mix these two compositions, the temperature viscosity level will be lowered by several degrees. This condition is critical because it has a direct effect on the performance of motors at elevated operating temperatures.

If you mix synthetic fluids suitable for operation in forty-degree heat, the possibility of difficulties with the functional characteristics of the engine due to incompatible additives cannot be ruled out. The fact is that manufacturers use various technologies to improve the viscosity characteristics of their lubricants, which involves the use of certain components. If you try to mix them, the result may be a composition that will interfere with the normal operation of the engine and gradually render it unusable.

With a combination of mineral and synthetic composition, problems may arise with operational characteristics engines, expressed in accelerated wear gaskets. The reason for this is the lack of stable viscosity in mineral-based lubricants. For such combinations, it is recommended to use only special additives, but the possibility of a negative impact on the structure of the synthetic component of the fluid used cannot be ruled out. Therefore, experts recommend that you familiarize yourself with the materials set forth in the operating instructions for a vehicle of a particular model before combining different types lubricants.

What should be said in conclusion?

If all the above arguments are taken into account, each vehicle owner will easily be able to determine whether it is possible to interfere with 5w30 and 5w40. Therefore, in a situation where, while driving, it is found that there are practically no lubricants left in the engine and there is still a considerable distance to be overcome, you can borrow some liquid from passing drivers, safely mix it with what is already poured into the engine and calmly continue moving.

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.

Attention, only TODAY!

Conducting Maintenance of his vehicle, every motorist at least once in his life wondered: is it possible to interfere with liquids with different markings? Expert opinions differ, someone claims that such an event will have a detrimental effect on the state of the installation, someone is sure that it is impossible to prove the fault of a mixed lubricant in an engine breakdown and dilution will not lead to anything bad. Let's try to figure out whether it is possible to mix 5W30 and 5W40 engine oil, and what consequences may arise.

The need to top up another lubricant usually occurs when there is residue of unused oil. It’s a shame to throw it away, so car owners save it for use in the next MOT in order to save money. But there are situations when a liquid is required immediately, but there is no suitable composition available. What to do?

Before combining the two types of oils, let's look at their differences.

Average oil performance ranges

At first glance, it seems that only the marking is different for lubricants, namely: its second digit is 30 and 40. According to the SAE international standard, this designation characterizes the range of "plus" temperatures in which the liquid remains stable. For 5W30, the limit temperature should not exceed 30 degrees, for 5W40 - 35. This difference in thermal stability is simply explained - liquids have different viscosity. 5W30 has a more fluid structure, which ensures optimal distribution of lubricant in summer and winter conditions. 5W40 is characterized by a more viscous consistency required to maintain lubricating properties with a critical increase in mercury column. However, it does not cause crystallization of the composition in cold conditions.

This is a generalized difference in motor oils with similar viscosities. However, there are also individual "dissimilarity":

• manufacturer and ingredients. The number of global oil refineries is off scale, so it would be absurd to believe that lubricants are identical. Even from the same manufacturer, 5W30 and 5W40 oils will differ not only in high-temperature capabilities.
• chemical basis and tolerances. Both liquids can be represented by different chemical bases (mineral water, semi-synthetics, synthetics), respectively, their tolerances will also not match.
• specifications.

For clarity, let's compare lubricants from one manufacturer and figure out what exactly differs in their parameters:

Agree, it was immediately too much to interfere with such liquids inside the power plant - after all, they differ in almost all indicators!

Interaction 5W30 and 5W40

Under the hood of a vehicle, you can mix the engine oil that has certain similarities with each other. For example, it was produced by one oil giant and has the same chemical base. In this case, the lubricant forms a homogeneous mixture that will circulate inside the engine compartment without any complaints. Changes in the operation of the car will not be noticed, because the oil will simply be distributed over the elements and create a strong film layer on them.

This situation can be achieved if you mix different types of semi-synthetics or synthetics. In cases where it became necessary to add mineral fluid to the synthetic fluid, the main question arises: is it worth trying?

Try it, only nice results don't count. The mineral water itself does not have a stable viscosity, it loses it under prolonged loads or sudden changes in temperature. To regulate the process of crystallization and changes in the structure of the oil, special additives are added to its composition, which, when it enters the synthetic material, neutralize its capabilities. Thus, in power plant unstable motor lubricant vaporized at high temperatures. American engineers recommend mixing semi-synthetic and synthetic oil if necessary, bypassing the all-natural base.

When 5W30 and 5W40 are combined, a consistency is obtained with the marking 5W3X, where X is an indicator that depends on the amount of the first and second liquid. This composition can be used for a short time: it will quickly lose its performance and turn into a heterogeneous slurry.

Automakers are always clear about which lubricants can be used under the hood. If earlier 5W40 oil was poured into the car, and now you diluted it with 5W30, then the former viscosity of the oil product will be lost. Insufficient viscosity will not hold the oil on metal surfaces and will quickly leave the work area.

The increased viscosity achieved by diluting 5W30 with 5W40 grease will make it difficult to crank the crankshaft, which will lead to increased load on the internal combustion engine and increased fuel consumption.

What are the consequences of mixing these liquids?

If you are a lover of experiments, and you don't care how you feel power unit vehicle after a little experience, it's time to warn you about the consequences of irrational mixing of lubricants.

As it turned out, engine oils with almost the same composition and tolerances can be mixed with each other without disturbing the usual performance of the engine compartment. But what happens if liquids get under the hood that have nothing in common except for the 5W marking? Here, the heterogeneity of the lubricant composition will already take place. Heterogeneity will cause a chaotic distribution of engine oil inside the installation, which means that some of the mechanisms will simply be unprotected. Should I add that a lack of oil will cause the crankshaft to seize?

In addition to partial oil starvation, there is a high risk of aggressive chemical reactions due to combinations of incompatible additives. Manufacturers, as a rule, keep their composition and production technology secret from each other, so it is impossible to predict in advance how liquids will behave.

When should you mix 5W30 and 5W40?

Mixing different oils

Car engines of various models behave completely differently, and if the owner of the domestic Zhiguli told you that there is nothing wrong with the interchangeability of oils, this cannot guarantee the good condition of the engine of your brand new BMW. There are sensitive settings that, at the slightest deviation from the norm, are able to “fall into suspended animation” and stop all attempts to go further.

When studying the requirements of automakers (which are printed in the manual for the car), pay attention Special attention on types of lubricants prohibited for use. If among them there is one of the liquids under consideration, there can be no question of any compatibility.

It is difficult to imagine that such seemingly safe activities can lead to serious consequences, however, their risk is quite high. It is not necessary to deliberately test the car - after all, repairs can cost you a lot of money. But if there are no other options, then adding 5W30 to 5W40 and vice versa is recommended only in emergency cases.

For example, if during a long trip you find that the oil level has reached a minimum, and before the next locality still a very long time to go, then you can fill in any composition that comes to hand. The main thing is that you drain this compote at the nearest car service.

And finally

Today we managed to understand whether it is possible to mix 5W30 and 5W40 engine oils. As it turned out, it is possible, but with a few caveats. However, if it is possible to use only one type of lubricant, do not resort to experimentation. Saving once on the right oil product, you risk being left without wheels. You can provoke the formation of a large amount of soot and soot, which will impede the free movement of parts and lead to clogging of the system by pouring mixed grease under the hood.

Good day! Can you please explain if 5W-30 oil can be added to OW-30 oil? Thanks in advance for your reply and help! (Evgeniy).

Hello Eugene! Your question is clear to us, we are ready to give an exhaustive answer to it.

[ Hide ]

Can oils be mixed?

Mixing issue motor fluids is relevant for many motorists. Often, domestic motorists are faced with the need to add oil to the engine, which entails many pressing issues.

I would like to note right away that there is nothing wrong with 5W30 in mixing motor fluids of classes 0W30. The numbers indicate the viscosity class, and with such a slight difference, mixing is allowed. But not always, but under certain conditions:

If these consumables are of the same production and you are sure that they have the same chemical composition. Mixing "consumables" of different manufacturers is not allowed. Often, fluid manufacturers use different chemicals in their formulations. If such MMs are used for a long time, then the liquid simply loses its properties, from which it will not be able to perform all the functions assigned to it. In addition, it is fraught with excessive formation of soot in internal combustion engine system and as a consequence - increased consumption gasoline.

Of course, if you find yourself in a situation where you urgently need to add MM in order to get home, then this is quite acceptable. But long-term operation of the vehicle with different consumables is not allowed. Also note that both types of oil must be either synthetic, semi-synthetic, or mineral. Mixing "synthetics" with "mineral water" or "semi-synthetics" can have undesirable consequences.

As you understand, it is desirable not to do this. But ask yourself - do you need it? Why mix OW-30 and 5W-30 viscosity grades? If you want your car to start easily in winter, then it’s better to fill in not “all-weather”, but winter consumable. In general, this addition procedure is undesirable, but in emergency cases it can be done.

Video "Is it possible to mix motor fluids?"

You can also find the answer to this question in this video.

Is it allowed to mix engine oils 4.75 /5 (95.00%) 4 votes

Is it possible to mix engine oils from different manufacturers, there is a lot of controversy and opinions about this. Some people think that all motor oils are the same. Therefore, they pour into the engine what is cheaper in the store. There is another myth that different viscosity, various chemical additives already indicate that motor oils are all different, and it is absolutely impossible to mix them. Let's look into this issue.

Are you afraid that you will be deceived in a car service? Click on any of the messengers below to find out 5 simple ways how to avoid being scammed

Engine oils from different manufacturers are usually mixed when the car owner has a desire switch to another brand of lubricant, which differs accordingly in viscosity and type.

There are also situations when the car owner is forced to add another engine oil. The reason may be a drop in the oil level in the engine, but there was no suitable one at hand, or it was not for sale. And they take such a step, topping up with engine oil of another brand.

Car services in Moscow for changing engine oil:

Loading car service...

Modern engine oils can mix with each other without any consequences. Moreover, any, semi-synthetic with mineral, synthetic with semi-synthetic, diesel with gasoline, 5w30 with 15w40. Proving this is easy enough.

Within one group, All oils have the same base., and additives are almost the same. Therefore, such liquids are allowed to be mixed, and in different proportions.

However, almost no one thinks about how, with the most common oil change and oil filter, remains in the engine about 5-10% spent liquid.

Any product that is produced in the world meets the norms and quality standards. Motor oil is no exception.

The main criterion for meeting the American standard API, European ACEA is the compatibility and miscibility of oils.

If a manufacturer fails to ensure miscibility, they will not achieve API and ACEA compliance, with all the ensuing consequences. Which go as far as banning the sale of such oils in the American and European markets. This is what anti-foaming additives are used for.

You can mix, for example, 5w40 synthetics with 10w40 semi-synthetics, and get an oil with a viscosity of 6w40 or 8w40, depending on mixing ratios.

Thus, if you want to change the viscosity of the engine oil, it is better to use the same brand fluid. For this reason, additives and various chemical components within the group will not differ. Therefore, engine oils of the same concern are best in contact.

Inside the brand, any oils are mixed in any proportions.

Causes:

• Same oil base.
• Viscosity additives are the same.
• The additive packages are basically the same.

Of course, engine oils will differ, but they will definitely not conflict. It's no secret, there are manufacturing plants that produce motor oils under different brands. Moreover, from the same oil, and the same additives. So the concern earns a lot more money.

The quality of these oils will be identical. All of them will have similar properties. Therefore, there will be no precipitation, folding, foaming. But the price will differ significantly. And here it is up to you to choose whether to pay for the brand and quality, or for quality.

Motor oils from different manufacturers mix is ​​acceptable. However, some experts, and manufacturers, do not particularly recommend it. Arguing that different brands use a variety of chem. additives and additives, which may differ in content. Of course, this does not mean that the liquid will immediately foam and precipitate.

But it is best to do this when you plan to drive for a short time, or in order to get to the right service station, in order to avoid negative consequences.

Therefore, many motorists fill in those oils that are recommended by car dealerships or service stations. After all, if you mix engine oils from different manufacturers incorrectly, it can lead to bad consequences which are extremely rare. However, this solution should not be abused.

Mixing is allowed, but the question is whether it is necessary. The most ideal option for changing engine oil is to choose one oil, one filter and replace it yourself, or at the same service station. Thus, you can minimize the risks of filling low-quality oil and installing a bad oil filter.

Mixing engine oil is only necessary as a last resort.

Consider the situation. The road light came on. but suitable oil was not with him. At the nearest service station, at a gas station, in a car shop, there is no such oil either.

If the car engine requires special motor oils. In this case, look at the tolerances. Take any suitable tolerance and top up as much as you need until the next one.

If the vehicle does not require special oils. Then take according to the viscosity you need, if there is none, then fill in a higher quality oil.

• In mineral 15w40, pour semi-synthetics 15w40, or semi-synthetics 10w40.
• Pour 5w40 synthetics into 10w40 semi-synthetics.
• Pour 5w40 into synthetics, fill 5w30 synthetics, etc.

If there is no engine oil of higher quality than yours, then fill in what is available, but in this one immediately at the service station. This also applies to cases where the seller and engine oil makes you suspicious. Against fake engine oil, API, ACEA requirements are useless.

Now let's summarize by what parameters you can mix:

1. When mixing, be sure to look at the tolerances - they must match (compatible).
2. The oil class must match. Don't pour into a car oil intended for trucks.
3. It is recommended to mix oils of the same viscosity.
4. It is recommended to mix oils belonging to the same concern.
5. Be sure to improve the quality of the oil. Add semi-synthetics to mineral, synthetics to semi-synthetics.

Not allowed:

1. Decrease the quality of the oil. Do not pour into synthetic semi-synthetics.
2. Do not mix mineral oil with synthetic oil.
3. Do not mix proportions 50 to 50, best topped up in max 15%.

Finally…

Now you know that mixing engine oils from different manufacturers is acceptable. However, add another brand of fluid only in the most extreme, emergency cases. Use only high-quality and original engine oils, this will definitely not lead to good.