How much oil should I put in my lawnmower

Gasoline to oil ratio for grass trimmer table. The first run-in of the lawnmower

Hello! I bought a Prorab 8406 1 grass trimmer. How to dilute petrol with oil. and in what proportions? I can’t find the original Prorab oil, I bought Hungsvarna HP. The trimmer’s manual says you can use SAE MIF\4, API TC-TB oils as a third-party oil. In the case of using a different brand of oil, the proportion of the fuel mixture does not change. Standard mix ratio is 1:25. But in a specialized store “specialist” who sold me the oil Hungsvarna HP strongly advised to dilute 1:50 (as written on the oil). The question is: if it is written in the instruction to dilute oil to 1:25, and on the oil recommended 1:50, then in what proportion dilute? And 1:25 is how much? 40 ml? I can’t blow up my engine if it’s 1:50? 2. What is the right way to run the engine? There is nothing written in the manual other than start up and shut down. Maybe you don’t need a running-in period? I read that there are grass trimmers that you can use right after you buy them.

Do I need to lubricate the gearbox before working or is there already factory grease? I hope for your help, thank you!

1) Petrol is diluted with oil ALWAYS in the proportion as indicated on the oil can! With two-stroke products (gasoline-powered trimmers, chain saws, etc.).) You can use any two-stroke oil except for the boat two-stroke engines. It is desirable to use oil from a normal store where you are unlikely to buy fake oil. Better to use Husqvarna or STIHL oil. STIHL oil must have a sealed neck. Beware of counterfeit products. There is a risk to damage the piston right away. 2) Two-stroke products do not run-in! PLEASE REMEMBER THAT! All two stroke products are high rpm and like to run exclusively at full throttle! No half throttle is allowed! This leads to incomplete exhaust and corks the walls of the piston with oil deposits. This leads to burrs in the piston. So full throttle and every 25-30 seconds do a 1-2 second gas dump to give the product a break and return to normal temperature. 3) The gearboxes on direct driveshaft brushcutters must be relubricated every 20 hours. Oil comes out of there naturally during operation. This is done to allow dirt, dust, etc. to come out with the grease. д. If you don’t want to get in the way of a gearbox replacement. use a special gearbox grease every 20 hours. It is not complicated and the whole operation takes no more than 3 minutes. The tubes with grease are sold in every garden equipment store and cost from 100 to 300. 1 tube is enough for 3 years- The term “running-in” is understood to mean not working at full capacity during the first two or three tanks of fuel. For example, when mowing sparse, low grass, or cutting dry, undersized wood. In no case you should not run the tool in idle mode, burning out several tanks of fuel. As a result of such running-in, a carbon sludge is formed on the cylinder windows, piston and muffler, which negatively affects the engine service life.

Grass trimmer, or lawnmower. a tool that you can not do without in the household. But its reliability, efficiency and long life depends on many factors.

For example, fuel quality. This means that you need to choose the right oil for grass trimmer, observe the proportions when adding it to gasoline, and follow the rules for filling the device.

Choice of gasoline for trimmers

Gasoline for lawn mowers should be selected according to the manufacturer’s recommendations. If you keep this in mind, the engine will break down in a short time. Often unleaded fuel with an octane rating of 92 or 95 is used for filling the gas tank of the grass trimmer.

Gasoline for the fuel mix

Filling the trimmer for grass with gasoline AI-80 can cause damage to the device because of its low technical characteristics. Note that the fuel after purchase can be stored for no more than 60 days, and it is better to reduce this period.

Do not use polyethylene canisters for storage, because. к. Static electricity will build up when in contact with the inner walls. Accidental sparking will cause an explosion. You may have special plastic jerrycans marked “flame”.

Peculiarities of the brushcutter filling

Depending on the engine device, brushcuts are divided into two-stroke and four-stroke. In the first case, the piston in the internal combustion engine makes 2 strokes per work cycle, and in the second case. 4 strokes. Differences in engine operation also mean that different threading procedures are required for the grass trimmer.

Filling up brushcutters with two-stroke engine

Household brushcutter models usually have a two-stroke engine. A lawnmower does not need very high power and speed, so it is well suited to its intended purpose. It is also a much cheaper and simpler engine, but it is fueled with a fuel mix of oil and gasoline. Such fuel is poured into the carburetor and fed into the cylinder in the form of an oil and gasoline mist. So oil lubricates all the necessary parts, and in the process of the engine work it is burned together with petrol. However, the combustion of this mixture is accompanied by emission of acrid odor and smoke, which increases the toxicity of exhaust gases.

Important! For these brushcutters you need to use special oil for two-stroke engines, which burns off completely, leaving no carbon residue and has low volatility. It mixes well with petrol. and that’s why it contains 20% solvent.

Fueling your brushcutter with a four-stroke engine

Four-stroke engines are used in professional brushcutter models. They have more power and can run for longer without stopping and refuelling. The engine also uses gasoline and oil as fuel. That means that no oil is present in the combustion process. The exhaust fumes are therefore less toxic.

Also for your information! In addition to better environmental performance and less heat, four-stroke brushcutter engines are also more economical. They use much less fuel. savings up to 50% on gasoline and up to 80% on oil.

How many engine types are there?

When choosing a grass trimmer according to the type of motor, some features should be considered. Units with electric units have significant limitations associated with providing power to the motor. Low RPM diesel engines, as on power tillers, are not available for trimmers.

Note the special features of the gasoline engines used:

  • Two-stroke cycle. Structurally it is simpler. Requiring quality of the working mixture at service. any deviations lead to a reduction in the service life of the motor.
  • Four-stroke cycle. No need to maintain a specific ratio between petrol and lawnmower oil. the mixture is mixed automatically, and the working fluids are in two different containers. The product turns out to be more expensive, but it runs more quietly, and the exhaust gases are cleaner.
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Regardless of the type of selected gasoline engine, the selection of oil and gasoline is made strictly in accordance with the recommendations of individual manufacturers.

Types of motor oils and their purpose

Choice of oil for the gasoline trimmer

Engine oil for gasoline grass trimmer is a lubricant that serves to reduce wear and tear between the engine rubbing parts.

The composition of the oil includes residual hydrocarbons and various additives that improve the properties of the final product. To ensure the long-lasting and trouble-free operation of the lawnmower, experts recommend using oils that match the physical and chemical properties of this type of motor.

Today it is customary to distinguish three main types of oils by the method of their production:

  • Mineral, created in the process of distillation of hydrocarbons;
  • Synthetic oils, obtained through natural gas processing or synthesis;
  • Semi-synthetic, which includes an improved mineral oil with the addition of some synthetic components.

In order to prevent mixing of different types the manufacturer adds a dye to the oil, which shows the difference in composition of the lubricant.

Husqvarna oils

Lubricants increase the life of the engine and indirect parts, provides long, trouble-free operation.

Husqvarna multigrade oil. one of the best oils for garden and construction equipment. Protects the engine immediately at startup and instantly lubricates faraway components. Characterized by soft texture, anti-corrosive properties, works in a wide range of temperatures and at high speeds.

Husqvarna oils advantages

  • Suitable for use with low-quality gasoline;. Suitable for use with low-quality gasoline;. Suitable for use with low-quality gasoline;
  • contribute to economical fuel consumption;
  • Thick oil film protects engine from wear and corrosion;
  • reduce fouling of pistons and cylinders;
  • The oil’s high viscosity makes it easy for the oil to get to the parts that rub;
  • special additives prevent crankcase deposits;
  • Reduced maintenance costs;
  • low volatility, resistance to oxidation processes;
  • environmentally friendly and biodegradable components.

Engine oils for 2 and 4-stroke engines

  • snow plows;
  • chainsaws and chain saws;
  • lawnmowers;
  • trimmers;
  • blowers;
  • power tillers;
  • lawn and garden tractors, etc.

Summer oils and versatile options for year-round use are available.

HP Husqvarna 2-stroke oil 1 liter API SG. the best selling oil in Russia. Its improved formula is adapted to work in harsh Russian latitudes with poor-quality gasoline. Synthetic additives protect engine from wear, deposits and corrosion, suitable for all 2-stroke machines.

Please note! How to tell the difference between Husqvarna oil and fake:

  • HP two-stroke oil is sold in 1 liter only, price. from 799 p.
  • On the top of the bottle there is a laser engraving in black or yellow.
  • On the side there is an oil level indicator stripe and 100 ml notches.
  • The production date includes not only the day-month-year, but also the time of manufacture.
  • Instructions on the back fully in Russian. There is information on certification, precautions, storage conditions, factory and importer in
  • In addition to the logo and barcode there is part number # 5878085-12.
  • Marked “Made in Sweden,” no other official manufacturer.
  • Dial at the bottom of the bottle: the center of the circle indicates the year and the arrow points to the month.
  • Inspection ring for opening, with Husqvarna H (Husqvarna) logo engraved on lid, with protective aluminum foil underneath.

Husqvarna chain oils

To prevent wear, a special low-viscosity oil is used for chain lubrication and bar protection. Effective in cold and wet conditions. Easily washed off with soap and detergents.

Oil for the air filter

Impregnates the filter and collects dust particles before they enter the engine, thereby increasing the life and durability of the engine. Removable with soap, biodegradable.

See the complete engine oil catalog in our Husqvarna store.

  • Free same day delivery in Moscow.
  • Self-delivery. c. Moscow, metro station Tulskaya, ul. Pavlovskaya 27/29.
  • Sending by transport company to any region

To buy Husqvarna oil place your order online or call or if you want to consult a specialist.

Oil to Gasoline Ratio in a 2T Engine: Table, Rules for Mixing

Owners of scooters and motorcycles, as well as owners of power tools, that have two-stroke engines, are faced with the need to fill the fuel tank with a pre-prepared mixture of gasoline and oil, keeping the necessary proportions.

Motor enthusiasts know that you can not charge the technique with a power unit of two-stroke type pure gasoline. It will adversely affect the performance of the engine, its service life and lead to inevitable breakdowns.

Let’s get acquainted with the principle of two-stroke engine operation, understand the proportions of mixing, as well as the rules of fuel mixture preparation.

Mixing oil with gasoline will help two-stroke machinery avoid breakdowns

Peculiarities and principle of work of the 2t engine

Any motorcycle owner should have an idea of the engine’s design and how it works. The power unit of two-stroke type is used not only in motorcycles, but also in other technical devices. gasoline mowers, trimmers and others. Despite the fact that many modern vehicles are equipped with a four-stroke engine, the two-stroke motor is still widely used. It is simple to operate, easy to maintain and repair and reliable enough.

The work cycle of such an engine is carried out for a couple of strokes of compression and stroke as a result of energy from the ignition of fuel. Both cycles are performed during a single crankshaft revolution. A two-stroke engine has no fuel intake phase and no exhaust cycle typical for four-stroke engines. The fuel intake and exhaust processes are performed during the compression and expansion phases.

This design feature increases engine torque and power output with the same cubic capacity as a 4-stroke motor. Although the efficiency of a two-stroke propulsion system is lower compared to a four-stroke, due to the two-stroke operation of the piston, the engine elements perform fewer movements. With good lubrication of the mating parts of the engine, it has a fairly high service life and is less subject to internal wear.

In order for a two-stroke to work, the ignition has to be turned on, fuel has to be provided and the engine crankshaft has to be cranked with a starter or kickstarter.

Not only motorcycles are powered by a two-stroke engine

Further work of the two-stroke motor is carried out according to the following algorithm:

  • the piston begins to move towards the spark plug from the bottom dead point. At this time, the fuel mixture enters the working chamber of the cylinder. The exhaust outlet opening is opened and the mixture is compressed;
  • At the beginning of the compression cycle, there is a pressure drop in the crank chamber to bring in a new batch of gasoline. In the upper phase of the piston movement, the mixture is ignited by a spark from the spark plug;
  • the energy resulting from the ignition of the gasoline forces the piston to move to the bottom. The open exhaust port allows exhaust gases to escape through the elbow connected to the silencer;
  • The subsequent movement of the piston causes the blowoff channel to open and gasoline to enter the cylinder’s working area. the phase when the piston moves to its lowest point completes the engine cycle and the cycle repeats.

In the process of feeding the gasoline mixed with oil, the components of the power unit are lubricated. This is the difference between the lubrication system of a two-stroke motor and the lubrication system of a four-stroke motor, which has a gear pump to supply oil to the mating parts area of the motor.

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Oil mixed with gasoline provides lubrication in the crank mechanism

Why do you have to mix petrol and oil?

Not everyone knows how to dilute gasoline for a two-stroke Chinese scooter, and why there is a need to mix gasoline with oil in strictly defined proportions. The point is that the constructional peculiarities and operating principle of a two-stroke engine do not allow for the use of pure gasoline. Thanks to the oil in the fuel mixture, the lubrication and friction reduction in the crank mechanism is achieved.

Mixing oil with petrol to prepare the fuel mixture is an essential pre-requisite for the proper operation of two-stroke engines.

Diluting petrol with oil allows:

  • increase the service life of the power plant;
  • ensure effective lubrication of the rubbing parts;
  • avoid jamming of engine parts due to overheating;
  • Prevent possible breakdowns in the operation of the motor.
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In addition, the use of gasoline mixed with oil in the required percentage avoids the appearance of scuffing, which is the cause of repair. Lack of oil can cause overheating of the piston cylinder group elements and failure of the two-stroke motor.

Higher oil concentrations will cause more wear in the engine block due to thicker carbon deposits. That is why it is important to determine the proportions, using the table that shows the necessary amount of oil for different volumes of gasoline.

The cause of fouling in the working chamber is the use of low-quality oil

What oil to dilute the gasoline for the motorcycle

Two-stroke engines do not have a separate lubricant fill in the crankcase.

The oil that burns together with fuel, have strict requirements:

2-stroke engines that use low-quality oil cause fouling of the oil chamber and a reduction in horsepower.

Determining with the type of oil, you should be guided by the recommendations of the manufacturer of the equipment, specified in the instruction manual. Preference should be given to branded oils produced by reputable manufacturers. Preferred oil grade. API-TB. Oil marked API-TC may also be used.

The choice of the type of lubricant depends on the climatic conditions:

  • in warm weather petrol may be diluted with mineral oil
  • in the winter months it is worth giving preference to synthetic oils;
  • For all-season use a branded semi-synthetic is suitable.

How much oil to add to gasoline for grass trimmer

Lawn care equipment takes pride of place in the garage of the country house or cottage. Competitors. a single-axle tractor or chainsaw. lose out to trimmers and lawnmowers in popularity. Among the maintenance operations for brushcutters are keeping clean, maintenance and regular refueling.

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Using the grass trimmer in the garden

In today’s environment, the purpose of a grass trimmer is to care for the lawn and the area as a whole. Unlike a traditional lawn trimmer unit, the grass trimmer has advantageous differences:

  • High mobility. This allows you to use the device in hard-to-reach and limited in size places.
  • Versatility. Depending on the type of vegetation, working tools change, which allows you to cut grass of any height and hardness.
  • Simple design. With timely maintenance grass trimmer does not require regular adjustments, frequent repairs.

When choosing a grass trimmer, analyze the operating conditions of the unit, which will help make the right selection on the type and power of the engine.

How many types of motor there are

When selecting a trimmer for grass on the type of engine, you should consider some features. Units with electric units have significant limitations associated with providing power to the motor. There are no diesel engines for trimmers, as there are for power tillers, taking into account the low rpm.

Note the characteristics of the petrol engines used:

  • Two-stroke cycle. Structurally it is simpler. Quality of mixtures is a point of concern during servicing. any deviations will reduce the life of the engine.
  • Four-stroke cycle.No need to maintain a specific ratio of gasoline to lawnmower oil. the mixture is mixed automatically and the working fluids are in two different containers. The product turns out to be more expensive, but it works more quietly and the exhaust gases are cleaner.

Regardless of the type of gasoline engine selected, oil and gasoline selection is made strictly in accordance with the recommendations of individual manufacturers.

Selecting gasoline and oil for refueling

In most cases, the gasoline with octane number 92 is used for filling the gas tank of grass trimmer.

But if the manufacturer specifies 95th gasoline for grass trimmer, it is not worth saving. The price difference between the two grades is currently minimal.

Pay close attention to the choice of oil. The API classification gives a specific order for two-stroke motor fluids:

  • TA class. air-cooled engines, from mopeds to lawnmowers
  • Class TV. low-powered engines up to 200 cm3 from chain saws to light motorcycles;
  • vehicle class. motorcycles and snowmobiles;
  • TD-grade. for use with yacht, boat and jet-ski engines.

Thus, the oil of the last two categories are not allowed for use with trimmers. When buying oil from domestic sellers, pay attention to the way the fluid is mixed with gasoline. labeled “self-mix”. no additional requirements for mixing of the two components. If labeled “pre mix”. forced mixing is required.

Do not ignore the recommendations to use only the recommended oils. Professionals like STIHL and Husqvarna develop original formulas for their models, taking into account their operating temperatures and the parts they use. You should not deprive yourself of the guarantee in advance by saving on oil.

Practical guidelines for proper mixture preparation

Before deciding how to mix oil with gasoline for a grass trimmer, you should finish the organizational issues. This includes such points:

  • Storage of technical fluids. For gasoline, it is better to provide a metal canister, and leave the oil in the factory container. For convenience, it is allowed to use a special double-section canister.
  • Volume of prepared mix. Do not prepare large quantities in advance. It is better to fill the mower with gasoline according to the amount of work you plan to do. The homogeneity of the mixture will be impaired during prolonged storage.
  • Mixing tool. The ideal device for oil sampling and dosage accuracy is the equivalent of a medical syringe. It will not only measure out the fluid accurately, but also makes it convenient to work with.

By the way, when buying oil, do not make a large reserve. It is enough to buy the volume that you can consume during the season.

Dilute in the right proportion

The problem of how much oil to pour in gasoline for grass trimmer, exacerbated by the citation of different proportions in different sources. For example, there is often such a discrepancy:

  • the proportion 1:40 is specified in the machine manual;
  • the value 1:25 on the plastic container of the fuel tank;
  • The proportion 1:50 on the plastic container for the solution.

In the slightest doubt pay attention to the oil package. When determining the amount to pour oil into gasoline for a lawnmower, take into account the properties of the liquid. It is taken into account that two-stroke motors do not like oil starvation. At the same time. capriciously perceived excessive oil enrichment of the mixture.

When determining how much oil to add to gasoline for grass trimmer, use the standard proportion. For one liter of gasoline, divide 1000 ml by 50, and obtain a volume of oil equal to 20 ml. If the poured volume is 500 ml, the amount of lubricant is reduced proportionally. It is also easy to calculate the amount of gasoline for larger quantities. If you want to prepare the mixture for the mowing crew, you need 200 ml of oil for 10 liters of gasoline.

What to add

Stirring evenly is important. Therefore, when adding oil per liter of gasoline to the grass trimmer use the following algorithm. Half of the gasoline is mixed with the entire required volume of oil. After stirring thoroughly, bring the volume of mixture to the nominal volume by adding the remainder of the gasoline.

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Keep containers, including the mixing cup or gasoline canister, clean. Do not use improper containers made of unprepared plastic for the mixture. Even small portions of impurities or debris will contribute to the failure of the carburetor. After preparation, it is better to pour gasoline into the grass trimmer with a container with a device that will protect against spillage of the mixture.

What’s the best oil for a grass trimmer?

For brushcutters, grass trimmers or lawn mowers, it is best to choose synthetic or semi-synthetic oil marked TA or TB. Keep in mind the manufacturer’s recommendations, as some manufacturers of quality equipment may recommend using only synthetic lubricants.

Gasoline 1 l 24 l
Engine oil 20 ml 0.48 л

How much oil to put in your lawn mower?

To know how much oil to add to the lawnmower, you need to familiarize yourself with the performance characteristics of the product. Proportional ratios, can be represented as follows: 1:25, 1:40 and 1:50, which means 1 part oil to 25, 40 or 50 parts gasoline.

Add 400 ml of oil to 10 liters of petrol for the run-in period. After the run-in of the boat motor, add 200 ml. oil per 10 liters of gasoline.

What is the best oil for grass trimmer?

For brushcutters, grass trimmers and lawn mowers it is best to use synthetic or semi-synthetic oil marked TA or TB. Keep in mind the manufacturer’s recommendations, as some manufacturers of quality equipment may recommend using synthetic lubricants only.

For example, to calculate the amount of oil in a 1:25 ratio, you need to divide the amount of gasoline by 25. Example: 1 liter gasoline / 25 = 0.04 liter. (40 ml) oil.

What gasoline to fill up

Gasoline for grass trimmer must be unleaded with the tact number 92 or 95. As practice shows, gasoline AI-80 can lead to device failures, which is a questionable economy.

Fuel must be fresh, i.e. it can be stored for no more than 60 days after purchase.

Other factors affect fuel quality, such as using special lawnmower lubricant and diluting it in a separate container. It is also advisable to use special canisters designed for storing gasoline.

How to dilute petrol with oil for grass trimmer

Dilute gasoline for grass trimmer must be in the correct proportion. An insufficient amount of oil can lead to poor lubrication of the elements of the lawnmower, which contributes to rapid wear.

The correct ratio can be found in the trimmer manual. Most often it is 1:25, 1:40, 1:50. To obtain these proportions, add 40 ml, 25 ml and 20 ml of oil to 1 liter of gasoline, respectively.

Dilute gasoline with the lubricant directly in the fuel tank is not allowed, in addition, the proportion of oil and gasoline must be clearly observed. If you ignore this rule, the work of the grass trimmer engine can be unstable, because of which it will quickly fail.

It is not advisable to use plastic bottles or canisters for this purpose. This is due to the fact that gasoline tends to dissolve plastic, which means that some of the plastic can get into the fuel tank, which can lead to carburetor failure. Although there are special plastic canisters marked “flame”.

  • Gasoline;
  • oil suitable for two-stroke engines with air cooling system;
  • a canister, preferably a metal canister;
  • A container for mixing, also better a metal one;
  • gloves;
  • respirator.

Make a mixture of gasoline and oil as follows:

  • Pour 1 liter of gasoline into the container, add half of the required portion of oil. Stir thoroughly, do it very carefully away from open flame sources.
  • Add the rest of the oil to the gasoline for the grass trimmer and mix thoroughly again. Fuel can now be poured into the fuel tank of the grass trimmer.

The mixture can be stored for no more than three months, so it is better to dilute the gasoline in such an amount that is enough for several uses.

For dilution you can use only quality oil, and it is recommended to buy it only in reputable stores, such as specialized hypermarkets.

How to properly pour diluted fuel into a two-stroke motor

Many people do not follow some important recommendations for pouring fuel into the gas tank of a grass trimmer or lawn mower, which eventually leads to unpleasant consequences. Let’s consider important recommendations on how to properly pour diluted fuel from gasoline and oil into the gas tank of a brushcutter:

  • Prepare the funnel or watering can. Despite the large diameter of the gas tank opening, very often when trying to get into it, a certain amount of fuel spills, which falls on the body of the tool. Fuel on the tool can cause ignition when heated, so it is very important to use a funnel or watering can
  • Before unscrewing the plug, you should thoroughly clean the surface of the tank, as dirt can get inside, which will cause a rapid clogging of the gasoline filter
  • Refueling work must be done in windless weather or in a secluded place to avoid the possibility of dust and small grains of sand getting inside the tank
  • Do not leave the gas tank hatch open for a long time, as it can get not only small grains of sand and dust, but also insects
  • Do not inhale gasoline fumes while filling, as they are dangerous to humans. When working with a trimmer, you must wear safety glasses, earplugs, and a respirator
  • It is necessary to pour fuel into the tank up to the mark. If you fill up a full tank, when you screw in the cap, some of it will spill out. not an economical use of fuel. In this case it is better to underfill than overfill

Given these recommendations, you can significantly extend the life of the gasoline tool in question.

How to store ready-to-use grass trimmer fuel mixture

After filling up the grass trimmer, many people save the remaining mixture in the bottle until the next time. Sometimes the next time is not so soon and it extends to the next year. Keep the mixture ready for such a long time, because the oil decomposes. After preparing the mixture, use it up for 1-2 weeks. In addition, you should not store the tool for a long time with the fuel mixture in the tank, because the effect will be similar. To prevent unforeseen circumstances, it is advisable to consider the following recommendations for storing a ready-to-use gasoline-oil mixture:

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  • Prepare the fuel mixture in the amount you will use. If you do not know how much fuel you are using, it is better to prepare less
  • If fuel mixture remains in the tank of the grass trimmer (when the tool is hidden until the next season), then it must be completely used up or drained
  • Before pouring the prepared mixture into the tank, you must stir it thoroughly
  • Store the prepared mixture in a tightly screwed container and in a place restricted to sunlight

If you follow all the recommendations, the service life of the grass trimmer will be at least as long as specified in the manual. The use of quality consumables paired with compliance with the recommendations on the preparation of the mixture in the trimmer for grass, will result in a long and effective service gasoline tool.