Understand the oils of 2 x stroke engines. Engine oil for two-stroke engines: characteristics, features, the right choice

Two-stroke engines, despite their imperfection relative to four-stroke structures, still massively apply on many newly produced devices.

Legendary Java with a two-stroke engine 638

• Mostly the motors of this type are used for:
• motorcycles of small cubic, snowmobiles, mopeds;
• lawn mowers, motoblocks, portable generators, chainsaw;
• motor boats;
• other devices where small size is required at high power.

The device of this engine imposes some features for operation. In particular, the familiar lubricant system on most of the two-stroke engine designs is missing.

There are modifications where the lubricant is supplied directly into the flow of fuel-air mixture from a special device in the form of an oil fog. However, in the overwhelming majority, the oil for modern 2-stroke engines enters the cylinders together with the fuel.

The principle of operation of the two-stroke engine

Two-stroke engines work a little on another scheme. In these motors, the crankshaft, rod and piston, which goes inside the cylinder is also present in these motors. Then the differences begin. Consider them in stages.

the principle of operation of the two-stroke engine

The first and most important difference is the gas distribution system. There are no familiar here distributional shafts, valve and block head as such. This function is performed by so-called windows (graduation, intake and purge) and the camera in the engine crankcase.

There is no oil in the engine crankcase. Absolutely not. Motor oil for two-stroke engines Located in a separate tank or mixed with fuel. There is oil only in the gearbox, which is often combined with a two-stroke motor.

Instead, a hermetic chamber is performed in the crankcase. When the piston goes up, the discharge is created in this chamber. Through the inlet window from the power system in this cavity is suused fuel and air mixture.

Piston push-pull engine with a long smooth skirt

On the walls of the cylinder, windows are made: graduation and purge. They are closed by the body of the piston. When the piston after the combustion of the mixture under pressure goes down, shortly before the bottom of the dead point, it opens the graduation window. The spent gases partially exit, and the pressure in the chamber is normalized. Just below there is a purge window.

The piston, moving down the cylinder, creates pressure in the crankcase chamber, where the fuel and air mixture is already being drawn up. And when it comes to the purge window, the mixture under the action of pressure squeezes the remnants of the exhaust gases from the cylinder and fills the combustion chamber.

The piston goes up and closes both windows. In Upper dead point Candle fills the fuel and air mixture. The cycle begins again.

Another significant difference can be called the absence of oil-chained rings (only compression) and needle bearings instead of inserts in connecting rod with crankshaft and piston. There is also often absent liquid system cooling. The motor is cooled by a passing air flow.

Another visual operating diagram of the two-stroke engine

Of the advantages to the two-stroke engines include:

1. A good coefficient of specific power (relatively high power per unit mass).
2. Easy manufacturing.
3. Unpretentious maintenance.

Of the significant drawbacks can be allocated:

1. Recallingly small resource and low reliability.
2. Comparatively small efficiency.
3. High probability of overheating (for two-stroke engine air cooled).

Oil for two-stroke engines with air cooled is added to the fuel. This feature imposes some restrictions on its properties. But let's talk about it later.

Engine operation without oil

In any mechanism where the friction of metal surfaces under load is implemented, there must be lubricant. No exception and two-stroke engines. In this case, the question arises in how to deliver the necessary portion of lubricant to the working surfaces.

The most common design provides for lubricating the parts of the CPG due to oil diluted in gasoline. Lubrication, hitting the combustion chamber in the form of fog, together with the fuel and air mixture, partially settles on the walls of the cylinder.

The work of the piston without oil leaves on its surface deep bulbs

The piston when moving the rings picks up this lubricant and fascinates in the gap between it and the cylinder. Due to this, lubricant is carried out.

In the needle bearing, the lubricant is scored immediately when assembling, and it is designed for the entire service life. There is still such a hypothesis that it is lubricated by the fuel and air mixture. Partially - yes, it is. But it is impossible to talk about lubricant at the expense of only oil fog.

All this determines some features of operation. For example, you always need to have some minimum stock with you two-stroke oil In case of unforeseen refueling. If you do not pour oil into gasoline, then the engine will still work for a while.

After the next thing comes:

• an avalanche-like piston, rings and cylinder mirror will begin to wear;
• due to the friction, intensive heating will begin;
• as a result, the rings and the surface of the cylinders are destroyed, or the piston is screwed.

Two-stroke oil requirements

Requirements for oils for 2-stroke engines are slightly different from the requirements for their four-stroke opponents. It makes sense to mention multiple key parameters.

Almost all modern oils for two-stroke engines are available under the TC-W3 brand. This universal lubricant is suitable for almost all known motors. In general, there are several classifiers. Consider some.

API classification

There are 4 varieties of oils: TA, TB, TC and TD. Now three of them in the past, and find oil with marking other than TC, you can only be parted with any low-active warehouse. More information about the scope of the three other classes a lot of information in free access. But it is unlikely to need, except for general development.

Classification by Jaso.

Here are also 4 categories: FA, FB, FC and FD. The farther the second letter of the Latin alphabet from its start, the better oil. On the Internet there are deciphers of the compositions, considering them in detail within this article there is no point.

Classification by ISO.

This classifier is linked to Jaso. Only here the last three grades are taken into account (the first is outdated) and additionally testing this oil in real conditions Work.

Dirty and worn piston chainsaws due to incorrectly selected oil

For ISO-L-EGB and ISO-L-EGC ISO-L-EGC classes, the requirements of the FB and FC described for JASO are preserved, plus an additional piston purity check after its use.

If the pistons have the required surface cleanliness, the oil confirms its high class, and it is assigned one of these labels. In very high class, ISO-L-EGD based on JASO FD, in addition to the pistons, the detergent effect is estimated.

Rules for cooking fuel mixture

The rules for the preparation of a mixture of gasoline and oil are individual for each individual case. Some manufacturers of technology allow oil to fill for their 2-stroke engines directly into the tank immediately after gasoline refueling. This applies to motorcycles, mosses, engine boats and in general to the whole large-sized technique.

Preparation of the mixture, breeding of two-stroke oil

If we consider chainsaws, trimmers and other manual gasoline tools, then a mixture of fuel and oil is recommended to be prepared in advance in a separate container. An important point is the selection of a suitable canister or bottle.

Auto this material personally witnessed like a mixture of gasoline and oil drilled sealing liner on a plug of plastic bottle, and a bottle began to leak while in a shoe bag of the Kosp.

A small spark or, for example, a match after chinning - and a person could burn alive. An important moment in the process of preparation of the mixture is compliance with the proportion. We will talk about this separately below.

Proportions and mixing

If for more technological versions of the two-stroke engines, the oil is applied dosed from a separate tank depending on the mode of operation of the engine, then in the case of simple two-strokes, everything is a bit more complicated.

Initially, the manufacturer indicates the proportion for the new engine. As a rule, it varies in the range from 1/20 to 1/33. That is, if the recommended proportion of 1/20 is specified, it means that one liter of gasoline must add 50 grams of oil.

If it is 1/33, then the oils should be 30 grams. The calculation logic, for example, for 1/20 is this: one share of oil of 20 fuel shares. Subsequently, after a certain run or the operation of a certain number of hours, the oil portion will increase. This is important to follow.

Table of proportions to prepare a working mixture from gasoline and two-stroke oil

Since the development on the details of the CPG will require an additional amount of oil to create a protective film in worn surfaces.

Motor oil - the most important element Motor system operations in car, scooter, motorcycle, electrical orientation technique. There is an extensive classification of these products to determine their features and competitive advantages.

Oil for has several differences from other liquids used for motors. TO basic characteristics belong low cost and increased power. There is no circulation of oil, since its input is immediately carried out in fuel. The combustion of a significant part of the lubricant is ensured together with fuel.

Quality of lubricants

This parameter has a direct impact on the reliability of the consumor and on the properties of operation. Therefore, choosing engine oil for 2-stroke aggregates, it is important to pay attention to its characteristics:

• lubrication properties;
• characteristics against wear;
• washing qualities and cleaning;
• small amount of smoke;
• the ability to prevent deposits in the release system;
• ensuring purity in the field of spark plugs;
• protective properties against corrosion;
• the possibility of mixing with fuel even at low temperatures;
• increased fluid flow rates.

All these properties are indicators of oil quality and contribute to improving its characteristics.

Classification of lubricants

(2x-stroke ) It has a fairly wide classification. Traditionally, oil without ash oil is used for suspended boat units.

The most proven and high-quality brands are ESSO, SADKO.

API classification:

• TSC-1 – TA. - This engine oil involves entering this group of all lubricants for small engines, having no more than 50 cm cube. Motors can be used in electrical generators, mowers and other elements.
• TSC-2 (B.) - This class contains oils used for engines with a volume of 50 cm. Such aggregates have air cooled and can carry out work at high loads.
• TSC-3 (C.) - This engine oil involves lubricants used for two-stroke engineswhich make particularly high requirements for lubrication quality. Such products are used for engines with a volume of 50-200 cubic meters. cm, mainly on motorcycles, snowmobiles.
• TSC-4 (TD.) Presented by consumables, which are often used in suspended engines - in motor boats and so on, equipped with water-cooled.

Rating oils

Considering the question of which fluid is better, you can appreciate them total Rating Based on the recommendations of specialists and personal experience Many drivers:

• Racing. 2 T.. It is used for engine engines that are actively involved in sports ordeal competitions. To prepare the fuel mixture, it is important to comply with the ratio recommended by the manufacturer.
• Sport 2 T.. It is a lubricant, which is manufactured on a synthetic basis. It is used for motorcycles, in all operating conditions.
• Special 2 T.. Used for motorcycles, scooters and mopeds. The main requirement for the preparation of the fuel mixture is to comply with the ratio recommended by the manufacturer.
• Scooter. 2 T.. This type Liquids are characterized by high quality and has numerous additives.

Oils for garden equipment:

• Prosylva. 2 T. Syn. - It can be used to work in severe conditions with colossal external loads. It can easily be mixed with gasoline or used in separate lubrication systems.
• Prosylva. 2 Tz. - Product is made based on base oil for two-stroke engines that are installed on sad technique. It can maintain its properties in extreme conditions of use. It has compatibility with unleaded gasoline and is used in separate lubrication systems.

Summary

All oils have several specifications and are suitable for specific use conditions. When choosing suitable lubricant It is important to pay attention to its basic parameters that characterize the quality. The choice of high quality product will allow the use of mechanisms without problems.

Oil for 2 clock engines has a lot of significant differences from similar lubricants intended for pouring into four-stroke motors. Therefore, before purchasing liquid, you need to learn about its technical and performance characteristics more information.

Quality oil for two-stroke engines is used for various vehicle, working tools and special equipment are small vans, lawn mowers, chain saws, motorboats, snowmobiles, motorcycles and others. The main parameters of power plants for which such lubricant is suitable are: low price, small mass and high performance indicators.

An important point to remember: Motor oils in two-stroke engines are not circulated (as in four-stroke power units). Therefore, it is necessary to enter them directly in fuel. The main volume of the working fluid is burning together with the fuel mixture, approximately 25% of the oil for 2 clock engines will be thrown into the form of a unburned oil fog with exhaust gases.

If we are talking about simple Motorwhich can be found on old models, then mixing needs to be performed in a special way. In terms of 1: 100 to 1:20, a certain amount of oil for a two-stroke engine must be entered into the fuel capacity manually.

If we talk about modern power units, then they are already equipped with a special system that performs dosing automatically. Oil supply for 2 clock engine here is carried out according to the load on the motor. The use of such systems allows you to vary the ratio of fuel and oil for a two-stroke engine from 1: 400 to 1:50.

The quality indicators of motor oils for 2 clock engines.

What quality is the oil for a two-stroke engine, has a strong impact on the service life and reliability power plant. Workers fluids have different parameters, to study which before purchase it is worthless.

But is it really so important, and is it not better to just buy engine oil for two-stroke engines, which is offered at the lowest price? Consider a small example.

Operation of aircraft engines is carried out at high temperaturesah and most sophisticated conditions. In addition, aircraft engines have to be regularly subjected to substantial temperature differences. On the other hand, suspended boat motors work with stable low temperatures, there are no drops at all. Due to the fact that the two-stroke installations themselves are different, and are operated at a completely different conditions, to pour into them the same lubricant would be wrong. In the first case, the oil for 2-stroke engines with air-cooled can be recommended. Whereas in the second air cooling for nothing.

Purchase suitable oil For 2 clock engines, a difficult process. The main product quality indicator is the level of combustion of the lubricant in the cylinder. High-class fluid will provide a powerful installation of reliable protection and will not allow to pollute the aggregate resins, soot and smoke. Harmful substances Will be allocated, but in smaller quantities. Apply good oilAnd you can reduce the natural wear of the motor and leave the exhaust clean. Professionals do not recommend applying additives with a metal base just for this reason. Such lubricants during combustion form strongly abrasive ash derivatives. In case of suspended boat engines Water or air cooling types, you can use soft oils.

Before you purchase a two-stroke engine oil, you must be sure that the product has the following qualities:

• High anti-wear and lubricants;
• The presence of cleansing function, detergent and dispersing properties;
• The ability to prevent the formation of deposits in the graduation mechanism;
• Smoke level is minimal;
• The ability to keep the spark plugs clean and prevent their premature ignition;
• High yields;
• The ability to ensure power aggregate protection against corrosive processes;
• The possibility of fast and uniform mixing with fuel even at low air temperature.

For oils of such a group, excellent lubricating indicators and corrosion resistance are very important (especially if the product is necessary for floating vehicles operating in salted waters). Another key parameter is wear resistance. Even with a prolonged simple motor, the lubricant must confront corrosive processes. As a rule, in high-quality oils for 2 clock engines, all the necessary additives are already included in the composition.

Error when choosing oil - Possible consequences

Many are interested in the question of what will happen if in a two-stroke power plant to pour a working fluid that has low quality or does not match the motor type itself (intended, for example, for four-stroke units)? The result is sad:

• Serious wear of the elements of the CPG;
• Cocking piston rings;
• Large tag in cylinders.

The result of deposits on the tips of the candles of ash particles can become a vibil ignition. That is, the flashes in the cylinders can occur arbitrarily, from hot ash particles, and not from the spark of the ignition. Before buying an oil for a 2-stroke engine, read the product composition. In some high-quality liquids, 85-98% of the total composition of the mixture are a basic lubricant. The rest is various additives that attach high technical and performance characteristics.

In addition, high-quality oils of this group may contain many different complex synthetic esters. In particular, if we talk about biologically decomposed lubricants, designed to pour into the suspended engines of marine ships.

Assortment and marking

Two-stroke oils intended for infusion in motors and ground vehicles in motors have their own markings:

• JASO FC - smokeless fluids for power aggregates cars and other devices;
• Jaso FB and Jaso Fa - Motor Oils Motor and Other Technology.

IMPORTANT! If you see the Jaso MB and Jaso Ma letters on the oil packaging, then you know that these products should be used in 4 motorcycle engines! Their coefficients of friction: low and high, respectively.

Papered oils intended for 2 clock boat suspended motors With any type of cooling, also labeled:

• TSC-4 - products for water-cooled suspended boat engines.
• TSC-3 - oils for engines that need the highest quality lubricant. Such motors can be installed not only by boats, but also on snowmobiles, motorcycles. Volume of power units 50-200 cm3.
• TSC-2 - Products intended for high-speed power plants (50-200 cm3 volume). The cooling of the engines occurs by air, aggregates have to work at high loads in the design of chainsaw, motorcycles, scooters, etc.
• TSC-1 - working fluids for fill in small engines (volume 50 cm3. Maximum). Such two-stroke engines have an air cooling system and, as a rule, they are included in the design of the electric generators, haymaker and mopeds.

Most of the boat engines are cooled in water. Therefore, the most severe oils for fillings are presented environmental requirements Environmentally. In particular, with respect to smoke and biodegradability.

If you do not know which engine oil for the two-stroke engine to choose, you can call us by phone or use the contact form on the site.

Almost anyone modern car Equipped four-stroke engineTherefore, most of the well-known manufacturers are developing lubricants for them. Oils for 2-stroke engines are less common, because such motors are rarer. However, they are found on motorboats, motorcycles, chainsaws, lawn mile. Such engines have a slight weight and high specific power, are cheap due to the simplicity of the design and cheapness of manufacture. Of course, it is impossible to pour into such engines normal oil For 4-stroke engines.

Features of such oils

It is worth noting that similar oils are disposable and completely lost. They are not poured into the motor crankcase in order to make the lubricant of the cylinder-piston group. They fill right in fuel. It is quite logical that at the same time oil for 2-stroke engines burns with fuel. If you go into details, approximately 25% of the product goes to the ugar, the remaining 75% oils are thrown into the atmosphere as exhaust gases. As a result, an oil fog is formed. Some models are introduced in proportions 1: 100 or 1:20. Depending on the motor model, the "fuel / oil" ratio can be different.

Modern 2-stroke engines have a system that is, the required amount of oil is supplied according to the load on the motor, which reduces the lubrication consumption.

Work 2-stroke engines

In used carburetor system The supply of air-fuel mixture. Due to the principle of operation of such an engine, emptying the chamber from exhaust gases and the supply of fresh mixtures is carried out almost simultaneously. Because of this, part of the fuel and lubrication goes along with the exhaust. And a third of fresh lubricant leaves. This is the greatest lack of two-stroke engines, due to which the efficiency of the motor is low. Here a part of the oil burns, a large amount of emissions are formed. Therefore, in densely populated regions, where mopeds with similar motors are often used, there is a big smoke on the streets, smoke and noise. In the example, the city of many Asian countries can be given, where the local population has a major vehicle - this is a moped.

However, recently, the disadvantages of the design of such motors were compensated by the use of new technologies of direct or indirect fuel injection. As a result, the emission level was reduced, fuel consumption decreased.

O for 2-stroke engines

There are different brands that produce products of different quality. The efficiency of the engine and its durability directly depends on the quality of the lubricant. When choosing an oil for 2 stroke engines, it is worth paying attention to such criteria:

1. Lubricating properties.
2. The presence of anti-wear characteristics.
3. The presence of the detergent additives performing the engine cleaning function from the precipitate of substances.
4. The ability to prevent deposits in exhaust system. Most often, this possibility of oil is available in the case of the premises of washing additives.
5. Low level of smoke in exhaust gases. If when using oil from exhaust system It comes out a lot of smoke, this suggests that most of the lubricant goes to the avgar.
6. Clean the ignition candlelight. Many experts are recommended after applying oil to check how much the candles have grown. If they are really soooked, it is better not to buy such a lubricant.
7. The viscosity of the oil and high fluidity. Some oils are thick at low temperatures, and then the effectiveness of their work is greatly reduced.
8. Anticorrosive properties.

Reviews

If you believe feedback, then on russian market Nicely good is the grease from the producer Gazpromneft. At a very low price, the company makes a good lubricant, which is not inferior in quality to products of world brands. Also good reviews about the manufacturer Makita, which delivers excellent mineral oils to the market. True, they are very expensive. And if the cost of the liter of Gazpromneft lubrication is 120 rubles, then the price of Makita lubrication is on average 500 rubles.

Husqvarna, Liqui Moly, Luxe - Dear foreign lubricants, which also collect good feedback. Often you can read good comments experts about Sadko oils. Products of this company by 85-98% consists of the basis - lubricant, the rest is given to the additives to give the composition necessary characteristicsdescribed above. And all are suitable basic oilsStarting with selective-neutral lubricants ending with synthetic polyalphaolefins.

Basics

In good reliable products used in conjunction with two-stroke motors, together with hydrocarbons, the composition contains synthetic esters. These semi-synthetic oils For 2-stroke engines are developed to a greater extent for sea ships. However, most often for two-stroke engines are developed on mineral base. They are cheap, but less efficient. Considering that oil in any case goes to a volunteer, many owners do not bother and choose cheap lubricants.

By the way, in contrast to lubricants for classic 4-stroke engines for 2-stroke engines, low-temperature indicators are focused slightly. Brightstock is simply added to the oil - an additive with a low temperature of frozen.

Classification

If we are talking about choosing a lubricant for boat engines with air or water-cooled, it is appropriate to pay attention first of all on loose oils. The best manufacturers of such products are Mobil, Esso, Shell, Sadko. They are divided into the following types according to API classification:

1. TSC-1 (TA). This includes oils for small engines with a cylinder volume to 0.5 m 3. Similar strengths are used in mopeds and mobile generators electricity.
2. TSC-2. This category includes oils intended for motors with a volume of 0.5-2.0 m 3. Such engines are installed in both mopeds and chainsaws and motorcycles. They work at high loads.
3. TSC-3. Oils of this category are better and used on engines that are very demanding for lubrication quality. Suitable products for motorcycles, snowmobiles, snowmobiles and other equipment with a volume of 0.5-2.0 m 3.
4. TSC-4. These oils are designed for motor boats with water-cooled engines. Considering the fact that such engines are cooled with water, then sufficiently high demands on the part of the ecology are presented to lubricants.

There is also marking of motorcycle lubricants:

1. Jaso Fa and Jaso FB - Class oils for motorcycle engines.
2. Jaso FC - This class includes smokeless oils for 2-stroke engines in motorcycles and cars.

Cost

The average price of oil for 2-stroke engines is quite large - about 300 rubles per liter canister. At the same time there are products worth 120 rubles and even 600 rubles per liter. Big is quite enough, but it is important to determine which oil is suitable for your type of motor, and use it. The use of incorrect lubrication will affect the efficiency of the power plant and its service life.

As you know, engines internal combustion There are 2 and 4 strokes. If short, one cloud in the engine is actually a movement up or down, while two clocks are performed for one crankshaft turn. Tact, in which the fuel combustion and gaset energy returns piston to make useful work, is customary to be called the piston workflow.

It is important to understand that although two and four-stroke motors are similar on the principle of action, they also differ significantly from each other in a number of features (both constructive and others). Next, we will talk about how two-stroke engines work, as well as which oil for two-stroke engines is best suited when used in this type.

Read in this article

Features of two-stroke engines and lubrication system on motors of this type

First of all, the working cycle of any OI consists of:

• inlet when the cylinder is filled with fuel and air mixture;
• compression (the working mixture is pre-compressed in the cylinder);
• inflammation of the fuel charge and energy transfer piston;
• release of exhaust gases from the cylinder;

If in a 4-stroke motor such a working cycle is performed for 2 turns, then in a 2-tact for one. In other words, the working cycle of a 2-stroke engine is conditionally "combined" inlet of the mixture, compression and working stroke, which occur not in hotel clocks (as in 4-stroke engine).

During compression, the piston rises from NMT to the VMT (upper and lower dead dot). At the same time, special "windows" instead of more familiar valves are constructively implemented in the engine. As the piston moves up, the so-called blowing window is first overlapped (the mixture falls through it into the cylinder), then the exhaust window is overlapping (through it the exhaust gases are out of the cylinder).

Accordingly, when the windows are blocked, the working mixture is compressed. In parallel with this, the crank chamber forms a vacuum, due to which the "tightening" of the next portion of the mixture occurs from the carburetor. Next, the piston is approaching the NTC, the spark flames the compressed mixture, gases appear that expand and push the piston down. This energy from the piston is transmitted to the crankshaft and rotates it.

While the piston makes the work move, the pressure increases in the crank chamber, which leads to a compression of the working mixture, which turned out to be there during the previous tact. After the surface of the piston reaches the zone of the exhaust window, opening it, which allows you to remove the exhaust gases into the release system.

Then the piston similarly opens the purge window through which the mixture, which is already under pressure in the crank chamber, falls into the cylinder and displaces the remnants of the exhaust gases. Next, the mixture fills the space above the piston. After the piston reaches NMT, the entire cycle of the two-stroke engine is repeated again.

If we talk about the lubrication system, the two-stroke engines may not even have a separate solution for these purposes. If simply, these motors are lubricated due to the fact that gasoline and oil are mixed in the desired proportion (for example, 1/25 or 1/50). In this case, this mixture is a mixture of not only air and gasoline, but also includes particles of oil.

It is enough to recall the principle of operation of the two-stroke engine, after which it becomes clear that the circulation of a similar mixture in the crank and piston chambers allows to realize the lubricant of the loaded elements of the DVS (connecting rod bearings, bearings crankshaft, cylinder walls, etc.) at the moment when fuel mixture burns, simultaneously burns and lubricant, after which the cylinder is purned.

As for the methods of mixing oil with fuel, there are two of them:

• together with a flammable, engine oil is directly flooded. This is the simplest solution.
• fuel and lubrication are in separate tanks, and the benzo-oil mixture is formed in the inlet nozzle, which is located between the cylinder itself and the carburetor.

The second scheme is more complex and suggests not only the tank for oil and the highway for its feed, but also the plunger pump. Due to this design, the oil is applied dosed, as well as taking into account the amount of a mixture of gasoline and air.

Without going into details, the pump issues greater performance, depending on how the gas handle is died. The stronger the gas is filled, they are more felt fuel, which means and increase the lubricant. A separate lubricant system on a two-stroke engine allows you to more accurately balance the ratio of oil to the number of gasoline, the engine smaller smokes and cocks, the oil consumption is reduced, etc.

So, a comparison of the lubrication systems of a two-stroke motor and a 4-stroke engine clearly demonstrates that these engines are very different. . In this case, the lubricant practically does not fall into the combustion chamber, that is, only the fuel and air mixture burns in the cylinders.

In 2-carts, it is supposed to combust not only fuel and air, but also the lubricant material itself. Taking into account the foregoing it becomes clear that the requirements for oils for 2-stroke engines are very different.

Oil for two-stroke engines with air-cooled and other similar DVSs should leave the minimum amount of nagar in the cylinders, mix well with flammable, maintain its properties as longer and better as possible, etc.

Oil for two-stroke engines: what better to choose

Let's start with the fact that motor oils for two-stroke engines of internal combustion are a separate type of lubricating fluid. Such lubricants differ in their properties from similar lubricants for four-stroke car engines and other similar DVS.

As already mentioned, special unique requirements are put on to oil for two-stroke engines. For example, oils for two-stroke gasoline engines Mandatory to provide:

• The smallest number of coke and ash, which are formed during combustion in the cylinder. In the ideal case, the lubricant should burn out completely.
• Also, oil for 2-stroke DVS should be completely and easy to dissolve in the fuel.
• Lubricant must necessarily have protective, anti-wear and lubricant properties in high temperatures. Also, the oil must ensure reliable corrosion protection.

If the two-stroke engine has a separate lubrication system, it is important that the oil is well hammer and remained fluid. We add that if we take into account the specifics and scope of use of two-stroke engines, which are motors for mopeds and scooters, boat engines, engines on lawn mile, etc., then individual requirements are put forward in terms of toxicity.

For example, in case of falling on the soil, the lubricant must be as secure as possible for ambient, and if such lubricant It falls into the water, then he must lose quickly.

So, oils for push-pull engines must comply with 2T and TC-W3 standards. By the way, such oils often differ in color from other analogues, as they are additionally painted for their definition. As a rule, oil for a 2-stroke engine of blue colorAt the same time it is clearly visible even when it is already mixed with gasoline.

Standard 2T implies the use of such a lubricant in air-cooled engines, ranging from chainsaw and lawn mowers and ending with light motorcycles. As for the TCW3 oils, they are designed for use in hydrocycles and suspended water-cooled motors.

You should also add that for winter operating There are for two-stroke engines. Another lubricant (similar to the oils for other engines) may have both (mineral, semi-synthetic or synthetic engine oil for a two-stroke engine).

As you can see, there are many sentences for boat and other two-stroke engines on the market. Even ready-made foods are found when the oil is already initially diluted and fully prepared for use (it only needs to fill it into the canister with flammable, shake and pour into the tank on a particular technique).

At the same time, products may differ significantly at the price and properties. As a rule, mineral oil is cheaper than synthetics. At the same time, it arises difficult to buy. First of all, it is necessary to use such an oil that prescribes the motor manufacturer itself.

If the instruction manual states that it is necessary to pour oil with a TC-W3 standard, then any oil suitable for this standard. It is not so important that pouring, mineral water or synthetics. As for the manufacturer, choose the brand that has a proper reputation. At the same time, fakes should be particularly worse.

Please note if the manual is separately spelled out for oil recommendations other than the products prescribed in the instructions categorically prohibited. For example, for "injection" import motors often separately indicate that it is possible to pour only synthetic oilwhich corresponds to clearly defined standards.

The fact is that the engine in this case is originally designed to work on such a lubricant, and the use of other oil will lead to a rapid unit of unit failure. If we talk about a simple technique, especially made during the USSR (mopeds, motorcycles, chainsaws, boat engines Etc.), such aggregates are quite successfully operating on MS-20.

At the same time, any import unit has all the chances to smoke and fail on this lubricant through several hours of work. We also note that in any two-stroke engines it is strictly forbidden to pour automotive gasoline or or, even more so, "work".

Such lubricants contain a lot of unnecessary for 2 tracked DVS additives, during combustion form a large amount of ash, etc. It is important to understand that ignoring these rules is usually the cause of breakage not only imported, but also enough robust domestic equipment.

That in the end

As can be seen, the above information allows us to conclude that the choice of oil for the two-stroke engine must be approached with special responsibility.

The main thing is carefully studying the instruction manual. If the engine is relatively simple and manufacturer allows us to use different species Oils, then in such a "two-stake" you can use more expensive synthetics, and simple mineral oil.

The only one, you need to make sure that one or another lubricant corresponds to the recommended standards. At the same time, the difference between the mineral water and synthetics in practice will be insignificant, except that the engine can make it easier on the synthetics and it is slightly cold to high revolutions. Also in the combustion chamber may be less coke and nagar.

I also add that even on mineral oil Such a motor still exists its claimed resource (subject to the use of suitable fuel and timely service).

However, if the engine manufacturer recommends pouring only a specific synthetic oil, then the mineral pour cannot be, and even if it also has the desired standard (for example, TCW3). In this case, the mineral water is still not suitable for a number of important parameters, since the lubrication system of this motor is simply not designed to use oils with a mineral oil base.

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