How to dilute gasoline for a lawnmower

How much oil to pour into the grass trimmer per liter of gasoline

Gasoline mowers are fairly common tools used by garden and homestead owners for mowing grass and making hay. common names for tools are the terms “grass trimmer” and “lawnmower“. The main difference is hidden in the design of the motor. the expensive segment of the devices is equipped with four-stroke models, and cheap. two-stroke. The latter option has advantages, including a small weight, ease of use, as well as a low cost.

The most important condition for the work of two-stroke models is the preparation of the fuel mixture, based on the manufacturer’s defined proportion of gasoline and oil. The simplified design of the motor does not provide a separate channel for lubrication, so engine oil is added directly to the gasoline. Failure to maintain the correct proportions leads to a significant reduction in tool life and even to tool breakage. Let’s understand what composition is required for gasoline trimmers, how to properly prepare the mixture and what it can affect.

Choice of gasoline for grass trimmer

For some reason everyone prefers to choose a brand of gasoline for brushcutter at his discretion. This is a wrong approach, because, first of all, you should carefully study the instructions, where the manufacturer’s recommendations are given for the selection of the type of fuel. But this is not a guarantee either, because unleaded fuel can be sold under different brands (which differ in many manufacturers), with significantly different composition. Therefore, it is necessary to focus on the basic characteristics to choose gasoline for a particular model of trimmer for grass.

Manufacturers of gasoline tools recommend using a gasoline brand AI-92 for work, but for more expensive types will need fuel with a higher octane number. AI-95. Any brand, the marking of which includes a figure of 90 or less, is not suitable for benzocosasers, as they lead to rapid wear and tear. The problem is caused by unscrupulous fuel producers who sell a completely different brand under the guise of 92. The situation is as follows:

  • The gasoline data sheet recommends the use of gasoline with an octane rating of at least 92;
  • The conscientious owner goes to the gas station, where the lowest price and with a clear conscience pours such fuel in the brushcutter;
  • As a result, the service life is reduced, because often under the guise of AI-92 sold AI-80 and AI-76.

Filling up with fuel

To avoid such a situation, it is necessary to choose a filling station where they sell a tested gasoline (it can be determined by the reviews of regular customers). It is important where to fill the fuel after purchase. only metal containers should be used for this (plastic is prohibited).

Preferably, when it is possible to buy gasoline for high purity grass trimmer specifically for garden equipment. Then you can be sure of its quality and protection against counterfeit.

How to dilute petrol and oil for grass trimmer for refueling

Two-stroke engines of the tool work at the expense of gasoline-oil mixture, which is prepared in the proportions that are specified in the technical certificate of the device. If you ignore the rules of mixing, the garden tool can quickly break down.

The functioning of a two-stroke unit is different from that of a four-stroke motor: the rubbing surfaces in the crankshaft and other parts of the unit are not lubricated from the crankcase, but by oil that has been previously diluted with gasoline. For two-stroke types of engines, the general rule of preparing a combustible mixture applies. gasoline is diluted with a certain volume of oil intended for this purpose.

How to dilute gasoline with oil for grass trimmer. step by step instructions

Mixing the fuel composition takes into account special proportions.

If you dilute the fuel mixture with an insufficient amount of lubricant, it will lead to rapid wear of lawnmower parts

The optimum oil to gasoline ratio can be found in the trimmer manual. it is usually 1:50, 1:40 or 1:25.

Dilute gasoline with the lubricant component must first be in a suitable container: doing it immediately in the fuel tank is prohibited. If you ignore this rule, the operation of the engine may be inconsistent, and the tool will break down quickly. To dilute the fuel mixture, do not use plastic canisters or bottles, because gasoline can dissolve this synthetic material. Order of fuel mixing:

  • Pour a liter of gasoline into a container (ideally a metal canister).
  • Add half of the required oil proportion.
  • Mix liquids thoroughly, away from open flame sources.
  • Pour the remaining lubricant into the tank and stir the mixture again.
  • Pour the fuel into the fuel tank of the grass trimmer.

The work should be carried out, wearing a respirator and rubber gloves. For easy pouring you can use a watering can. The ready-to-use mixture should not be stored longer than 3 months, it is better to dilute exactly as much fuel as you need for the planned work in the near future. Always choose high-quality oil for mixing with petrol, it is better to buy it at the certified gas stations.

Oils and fuel proportions

Calculation of the ratio of ingredients for the preparation of filling for grass trimmer should take into account the recommendations on the package from the oil. The standard ratio is 1:50. You may use any quality oil for two-stroke engines.

What is the best oil to choose for boat motors?

Also note that if these oils can not be used to prepare gasoline mixture for boat engines. It is necessary to fill 2T boat motors with petrol mix with octane number not less than 89 and extra-clean oil with detergent additives of NMMATC-W3 marking in proportion of 1:50 for working mode of the engine. 1:25 for running-in period (first 5-10 hours). Selection of quality oil.the basis of the engine operation, so each manufacturer recommends to fill in technique of certain oil brands, thereby guaranteeing the longest service life of the product. so for tohatus boat engines (both 2t and 4t) the service center recommends to use german motul and american quicksilver oils. For mercury boat engines, it is necessary to use only quicksilver motor oil. Motul and statoil are the preferred brands for Honda boat engines.

See also  How to choose a gasoline collapsible trimmer for the grass?.

Useful hint

It is not recommended to use the fuel mixture if more than two months have passed since it was prepared.

Husqvarna oils

Lubricants increase the service life of engines and indirect components, ensure long trouble-free operation.

Husqvarna multigrade oil is one of the best for gardening and construction equipment. Protects the engine immediately at startup and instantly lubricates the far-flung parts of the structure. Characterized by a soft texture, anti-corrosive properties, works over a wide range of temperatures and at high speeds.

The benefits of Husqvarna oils

  • suitable for use with low-quality gasoline;
  • contribute to economical fuel consumption;
  • The thick oil film protects the engine from wear and corrosion;
  • reduce the appearance of carbon deposits on pistons and cylinders;
  • Thanks to its high viscosity the oil gets to the parts that move easily;
  • Special additives prevent deposits in crankcase;
  • lower 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;
  • garden tractors, etc.

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

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

Please Note! How to tell the difference between Husqvarna oil and counterfeit:

  • HP two-stroke oil is available in 1 liter only, with a price starting at 799.
  • Laser engraved on the top of the bottle in black or yellow.
  • With 100 ml sticker on the side.
  • The production date includes not only the day-month-year, but also the time of manufacture.
  • The instructions on the back are completely in Russian. There is information on certification, precautions, storage conditions, factory and importer in
  • In addition to the logo and barcode there is type number # 5878085-12.
  • “Made in Sweden” marking, no other official manufacturer.
  • Dial at the bottom of the bottle: year in the center of the circle and an arrow pointing to the month.
  • Check ring for opening, engraved H (Husqvarna) logo on lid, with protective aluminum foil underneath.

Husqvarna chain oils

To prevent wear, a special low-viscosity oil is used to lubricate the chain and protect the saw bar. Effective in cold and wet conditions. But cleans easily with soap and detergents.

Air Filter Oil

Impregnates the filter and collects dust particles before they get into the engine, thereby increasing its life and durability. Removes with soap and water, biodegradable.

See a full catalog of engine oils in our authorized Husqvarna store.

  • Free same day delivery in Moscow.
  • Self-delivery. d. Moscow, metro station Tulskaya, Vladimirskaya str. 27/29 Pavlovskaya.
  • Shipment by transport company to any region

To buy Husqvarna oil place your order online or call us if you want to consult an expert.

Choosing lawnmower oil

For the engines of trimmers choose oils marked “2T”, which are used for engines with a capacity of 50 to 200 cm3 and are air-cooled. In the first place when buying oil pay attention not to the price but to the protective properties of the material, because a small savings can later become a real headache for the owner and, as a rule, a big expense.

Two-Stroke Lawnmower Oil

The main factor determining the quality of grass trimmer oil is the alkali number. It is this component that eliminates oxidation of rubbing parts and slows down their degradation. During operation, the oil gradually loses its alkalinity and becomes oxidized. The optimum level of acidity (Ph) should not be less than 8-9 units.

The oil viscosity of your brushcutter also has a big influence on the way your petrol tool works. This designation determines the ability to operate the grass trimmer at different temperatures. For example, summer brands of lubricants become thick even at a slight drop in temperature. In view of the use of the lawnmower exclusively in the spring and autumn period, an excellent option would be an oil with a summer marking.

The grass trimmer oil must have a flash point above 225°C or it will burn out quickly and the piston group will be subjected to heavy wear and tear.

What to look for when selecting oil?

Modern two-stroke brushcutter engines are filled with a mixture of gasoline AI-92 and oil marked “2T”. Use of fuel with a higher octane rating will cause a higher flash point and result in burning out of the lubricant.

STIHL different types of oil

Undoubtedly, the best oil for grass trimmer is the one recommended by the manufacturer, but the owner is not always able to buy the “proprietary” lubricant. Experts recommend Shell Helix Ultra, based on Pureplus technology, which improves the basic properties of the lubricant.

STIHL HP Ultra, STIHL HP, STIHL HP S gasoline trimmers from the German manufacturer STIHL should be used. A budget substitute can be the products of the Vityaz company, which by its properties is the most similar to the recommended material.

How to dilute gasoline and oil for a grass trimmer

Dilute gasoline for trimmer for grass should be in the correct proportion. Not enough oil can provide the lawn trimmer with poor lubrication and wear out quickly.

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

It is not allowed to dilute petrol and lubricant directly in the fuel tank, moreover, the proportion of oil and petrol must be strictly observed. If you ignore this rule, then the work of the engine trimmer for grass can be unstable, because of which it will quickly fail.

Do not 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 metal;
  • A container for mixing, also better a metal one;
  • gloves;
  • respirator.
See also  How To Ring A Coil On A Lawn Mower

A mixture of gasoline and oil is made as follows:

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

The mixture may be stored for up to three months. That is why it is better to dilute the petrol so that it lasts for several uses.

For dilution, only high-quality oil can be used, and it is recommended to buy it only in proven stores, such as in specialized hypermarkets.

Standard proportions

It is not uncommon to have problems with the proportions of oil and fuel for the correct operation of the brushcutter. The reason for all. completely different information in the sources. You may encounter a difference in the data on the ratio by a dozen units, and sometimes. half. So you can’t help but wonder if you really need 20 ml or 40 ml of oil per liter of gasoline. But for this, there is a technical data sheet for the product you buy in the store. There should be a description of the device, instructions for its operation and instructions on how to prepare the fuel mixture.

The first thing to consider is the information recommended by the manufacturer, because if your brushcutter breaks down, you can make a claim against it and not against a third-party source. If there is no instruction in the passport, and moreover, if the passport is missing, it is recommended to look for another grass trimmer model from a more reliable seller.

For all other cases, when you have a lawn mower model in your hands and there is no way to know its technical features, there are standard proportions of the most likely components of the fuel mixture for a two-stroke engine. Generally, these units use AI-92 gasoline and a special synthetic oil, which contains a solvent for better mixing with fuel. Such oil evaporates slowly and has the ability to burn completely in the cylinder without leaving a residue.

the standard ratio of synthetic oil to gasoline is 1:50. This means that 100 ml of oil is needed for 5 litres of petrol, so the oil consumption per 1 litre of petrol is 20 ml. Knowing the amount of oil needed to dilute 1 liter of fuel, you can easily calculate any rates in the preparation of fuel for grass trimmer. When using mineral oils, the standard ratio is often 1: 40. Consequently, 1 liter of fuel requires 25 ml of such oil, while a 5-liter canister requires 125 ml.

When operating a lawnmower, a person with little experience in the operation of such equipment will not be difficult to determine and adjust the actual amount of oil needed for a particular model. One should only pay attention to the exhaust gases (their color, odor toxicity), stability of cycles, engine heating and developed power. about what consequences from the wrong proportions of gasoline and oil mixing can be expected in another section of the article. There are versions of brushcutters that run on gasoline AI-95. This should also be taken into account.

If the manufacturer recommends such octane rating, you should follow the requirements, in order not to reduce the service life of the equipment.

Gasoline to oil ratio for lawnmowers

Lawn mowers are quite a common appliance for weed control in country houses, farms, roads, and utilities companies. These devices have two other names. grass trimmer and lawn mower. These units differ in their engines. The most expensive of them have four-stroke engines, all the rest have two-stroke engines. Of course, the latter are the most popular among the population, as they are simpler in design, lighter in weight, and much cheaper than their four-stroke competitors. However, two-stroke models are inconvenient by the fact that the fuel mixture for them must be prepared manually, maintaining a strict dosage between gasoline and oil. In four-stroke counterparts, the mixing of these components is automatic, you should only fill the gas tank and oil tank with the appropriate substances. Let’s consider the question of the correctness of charging exactly two-stroke brushcuts, because it depends on this, how effective and long will be the work of such a unit.

Standard proportions

Often there are problems with the proportions of oil and fuel for the reliable operation of a brushcutter. The reason is that the information in the sources is completely different. You may encounter a difference in the ratio by a dozen units, and sometimes by half. So you can’t help but wonder how much oil you really need per liter of gasoline: 20 ml or 40 ml. But for this there is a technical passport for the product that you buy in the store. It should have a machine description, operating manual and information about how to prepare the fuel mix.

First of all, you should take into account the information that the manufacturer recommends, because in the case of a mower breakdown, you can make your claims to him, not to a third-party source. If there is no instruction in the manual, and even more so if the manual is missing, it is recommended to look for another grass trimmer model from a more reliable dealer.

For all other cases, when you have a lawnmower model in your hands and there is no way to know its technical features, there are standard proportions of the most likely components of the fuel mixture for a two-stroke engine. Basically for these units gasoline of AI-92 brand and special synthetic oil are used, which contains a solvent for better mixing with fuel. Such oil evaporates slowly and has the ability to burn completely in the cylinder, leaving no soot.

The standard ratio of synthetic oil to gasoline is 1: 50. It means that 100 ml of oil is needed for 5 liters of petrol, and accordingly the oil consumption per 1 liter of petrol is 20 ml. Knowing the amount of oil needed to dilute 1 liter of fuel, you can easily calculate any rates when preparing fuel for grass trimmer. With mineral oils, the standard ratio is most often 1: 40. So you need 25 ml of this oil for 1 liter of gasoline, and 125 ml for a 5-liter canister.

During the operation of the lawnmower, a person with little experience in operating such equipment will not be difficult to determine and adjust the actual amount of oil needed for a particular model. You need only pay attention to the exhaust gases (their color and odor toxicity), cyclic stability, engine heating and power output. about what consequences from improper proportions of mixing gasoline and oil can be expected, is covered in another section of the article. There are different versions of brushcutters with AI-95 gasoline. This also has to be taken into account.

See also  Stihl Trimmer Gasoline Dilution Proportions

If the manufacturer recommends a fuel with this octane rating, it must be complied with so as not to reduce the operating life of the machine.

What gasoline to fill

Gasoline for grass trimmers must be unleaded 92 or 95 mesh. Practice shows that gasoline AI-80 can cause a machine breakdown, which is not a very economical decision.

The fuel must be fresh, i.e. after purchase it can be stored not more than 60 days.

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

How to dilute gasoline with oil for grass trimmer

Dilute gasoline for grass trimmer must be in the correct proportion. not enough oil can lead to poor lubrication of the mower elements, which contributes to quick wear and tear.

You can check the correct oil ratio in the instruction manual of your trimmer. It is usually 1:25, 1:40, 1:50. In order to obtain these proportions, 40 ml, 25 ml and 20 ml of oil must be added to 1 liter of gasoline, respectively.

It is unacceptable to dilute petrol with lubricant directly in the fuel tank, moreover, the proportion of oil and petrol must be strictly observed. If you ignore this rule, the operation of the grass trimmer engine may be unstable, due to which it will quickly fail.

It is not recommended 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;
  • canister, preferably a metal canister;
  • A mixing container, also preferably a metal one;
  • gloves;
  • respirator.

Make a mixture of petrol and oil as follows

  • pour 1 liter of petrol into a container, add half of the required portion of oil. Stir thoroughly, being careful to avoid open flames.
  • Add the rest of the oil to the gasoline for the weed trimmer and mix it well again. Fuel can now be poured into the fuel tank of the grass trimmer.

The mixture can be stored for up to three months, so it is better to dilute the petrol enough to last for several uses.

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

How to properly pour the finished fuel into a two-stroke motor

Many people do not follow some important recommendations for filling the gas tank of a grass trimmer or lawnmower, 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 a funnel or watering can. Despite the large diameter of the gas tank opening, very often when trying to get into it, some of the 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 here
  • Before unscrewing the plug, you should thoroughly clean the surface of the tank, as dirt can get inside, which will cause rapid clogging of the gasoline filter
  • Fuel filling work should be carried out 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 fuel 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 petrol fumes when filling, because they are dangerous for humans. While working with a trimmer, you must wear safety glasses, earphones and a respirator
  • Fill the fuel 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

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

Recommendations for storing the ready-to-use fuel mixture for the grass trimmer

After filling up the grass trimmer, many people set aside the remaining mixture in the bottle until the next time. Sometimes this next time comes not soon, and stretches until next year. You can not store the ready mix for so long, because the oil decomposes. After preparing the fuel mixture, use up the mixture within 1-2 weeks. In addition, you should also not store the tool for a long time with the fuel mixture poured into the tank, as the effect will be similar. To prevent unforeseen circumstances, it is advisable to consider the following recommendations for storing a ready-mixed gasoline/oil mixture

  • Prepare the fuel mixture in the amount that will be used. If you do not know how much fuel you are using, then it is better to prepare less
  • If there is fuel mixture left in the tank of the grass trimmer (when the tool is hidden until the next season), it should be completely used up or drained
  • Before pouring the prepared mixture into the tank, stir it thoroughly
  • Store the ready 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 no less than that specified in the instructions. The use of quality consumables paired with compliance with the recommendations on the preparation of the mixture in the grass trimmer, will entail a long and effective service of the gasoline tool.