How much oil to pour into the grass trimmer per liter of gasoline
Gasoline mowers. fairly common tools used by owners of garden and homestead farms 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 the cheap ones are two-stroke models. The latter option has advantages, including low weight, ease of use, as well as 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. Simplified design of the motor does not provide a separate channel for lubrication, so engine oil is added directly to the gasoline. Violation of the correct proportions leads to a significant reduction in the resource of the tool and even to its failure. Let’s understand what composition is required for gasoline trimmers, how to properly prepare the mixture and what it can affect.
The choice of gasoline for grass trimmer
For some reason, everyone prefers to choose a brand of gasoline for a brushcutter at his discretion. This is a wrong approach, because, first of all, you need to carefully study the instruction manual, which gives the manufacturer’s recommendations for the choice of fuel type. But this is also not a guarantee, 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 main characteristics to choose gasoline for a particular model of trimmer for grass.
Petrol tool manufacturers recommend using a brand of gasoline AI-92, but for more expensive types will need fuel with a higher octane number. AI-95. Any brand that has a number 90 or less is not suitable for petrol-powered machines, because it leads to quick wear and tear. The problem is created by unscrupulous fuel producers, who sell a completely different brand under the guise of 92. The situation is as follows:
- In the certificate of gasoline equipment is a recommendation to use gasoline with an octane number not lower than 92;
- The conscientious owner goes to the gas station where the price is lowest and with a clear conscience fills the brushcutter with this fuel;
- As a result, the service life is reduced, because often under the guise of AI-92 sold AI-80 and AI-76.
To avoid such a situation, you should choose a gas station where they sell a proven gasoline (it can be determined by the reviews of regular customers). It is also important where to pour the fuel after purchase. only metal containers should be used for this (plastic is prohibited).
Preferably, when it is possible to buy gasoline for a grass trimmer of high purity specifically for garden equipment. Then you can be sure of its quality and protection against counterfeiting.
What oil to choose to fill your grass trimmer or types of lubricants
Grass trimmers and lawnmowers run on two-stroke engines, which have a simplified design. Rarely, but there are trimmer models with 4-stroke motors that run on pure gasoline. Power units of the two-stroke type do not have a compartment for pouring engine oil (oil sump), due to which the weight of the tool is reduced and their cost is reduced. If the rotating parts of the motor will not be lubricated, then eventually they will quickly fail. To prevent this, the grass trimmer is not filled with pure gasoline, but with a mixture of oil. What oil to dilute with gasoline for grass trimmer?
To begin with, let’s remember or find out what types of oils by chemical composition are produced:
- Mineral fluids. intended for low-power air-cooled machines. This is the cheapest type of engine lubricant
- Semi-synthetics. they are used for equipment that is air- and water-cooled
- Synthetic. suitable for all types of engines with different types of cooling. They do not require frequent changes, and this type of lubricant is several times more expensive than mineral and semi-synthetic
From the above, it follows that the grass trimmer is suitable for oil with any composition. mineral, synthetic and semi-synthetic. Oils with different chemical composition differs in price, so it is necessary to rely on the recommendations of the tool manufacturer when buying. The instructions contain recommended information about the types of oil that are better to use. If it is a TC-W3 standard, then the composition of the substance is not important. In this case, you can dilute mineral, semi-synthetic and synthetic with gasoline.
This is interesting! The main thing when choosing oil is not to get caught on the counterfeit, because today you can often find different types of lubricating compositions for two-stroke engines, which consist mainly of low-quality petroleum products.
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Features of brushcutter lubrication
Depending on their engine, brushcutters are divided into two-stroke and four-stroke motors. In the first case, the combustion engine piston makes 2 strokes per working cycle. In the second case, it makes 4 strokes. Differences in the working principle of the engine and different approaches to charging trimmer for grass.
2-stroke engine for lawn mowers
As a rule, a two-stroke engine is used in common household trimmer models. Lawn trimmers do not need very high power and aggressiveness, so it is quite suitable for the task. In addition, this engine is much cheaper and simpler, but it is fueled by a fuel mixture, which consists of oil and gasoline. This fuel is filled into the carburetor and pumped into the cylinder as a petrol-oil mist. The oil thus keeps all parts necessary for lubrication and, when the engine is running, combusts with the petrol. The engine oil and gasoline are sold in the carburetor, but this mix is combined with caustic smells and fumes, increasing the toxicity of the exhaust fumes.
Important! You should use special oil for these brushcutters, preferably a two-stroke engine oil that burns completely without leaving a black hole, and has very low volatility. To mix well with the gasoline, it contains 20 percent solvent.
Fueling brushcutters with four-stroke engines
Four-stroke engines are used in professional brushcutter models. They have great power and can run for a long time without interruption or refueling. They also use petrol and oil as fuels, but are filled in different tanks. The engine oil is not part of the combustion process, which means that the exhaust fumes are less toxic.
Of note! As well as offering better environmental performance and less heat, four-stroke brushcutter engines are also more economical. They save up to 50% on gasoline and up to 80% on oil.
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Using a grass trimmer in the garden
In today’s environment, the grass trimmer’s purpose is to care for the lawn and the area as a whole. Unlike a traditional lawn trimmer, the grass trimmer is different:
High mobility. This allows the use of 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.
Easy to build. With timely maintenance, the grass trimmer does not require regular adjustments, frequent repairs.
When choosing a trimmer for grass, analyze the operating conditions of the unit, which will help to make the correct selection on the type and power of the engine.
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How many engine types are there
When selecting a grass trimmer by motor type, there are several features to consider. Aggregates with electric units have significant limitations associated with providing power to the motor. Diesel motors, as on power tillers, taking into account the low revolutions, are not offered for trimmers.
Pay attention to the petrol engines used:
Two-stroke cycle. Structurally the simpler of the two-stroke cycle. Quality of the working mixture is crucial for maintenance. any deviations lead to a reduction in the service life of the motor.
Four-stroke cycle. No specific gasoline to lawnmower oil ratio is required. the mixture is mixed automatically and the working fluid is in two different tanks. The product turns out to be more expensive, but runs quieter and the exhaust is cleaner.
Regardless of the type of gasoline engine selected, the selection of oil and gasoline is strictly in accordance with the recommendations of individual manufacturers.
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How to dilute gasoline 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 break down quickly.
The functioning of the two-stroke unit is different from the work of four-stroke motors: the lubrication of the rubbing surfaces in the crankshaft and other parts of the device is not from the crankcase, but through oil, which was previously diluted with gasoline. For two-stroke engines there is a general rule for the preparation of the combustible mixture. 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
Fuel composition is mixed with regard to special proportions.
If you dilute the fuel mixture with insufficient lubricant, it will lead to rapid wear of the lawnmower parts
The optimal oil to gasoline ratio can be found in the trimmer manual. It is usually 1:50, 1:40 or 1:25.
You must first dilute the gasoline with the lubricant component in a suitable container: doing it immediately in the fuel tank is prohibited. If you ignore this rule, the work of the motor can be inconsistent, as a result of which the tool will quickly fail. To dilute the fuel mixture, do not use plastic canisters or bottles, because gasoline can dissolve this synthetic material. Order of mixing fuel:
- Pour a liter of gasoline into a container (optimally, a metal canister).
- Add half the required oil proportion.
- Mix fluids thoroughly, away from open flames.
- Pour the rest of the lubricant into the container and mix the mixture again.
- Pour the fuel into the fuel tank of the grass trimmer.
Work should be performed wearing a respirator and rubber gloves. For the convenience of pouring you can use a watering can. You should not keep the fuel mix for more than 3 months. It is better to mix only as much fuel as you need for your planned work in the near future. Always choose a high-quality oil for mixing with gasoline, it is better to buy it at a proven gas station.
Oils and fuel proportions
The calculation of the ratio of the ingredients for preparing fuel for the grass trimmer should take into account the recommendations on the oil package. The standard proportion is 1:50. You can use any quality oil for two-stroke engines.
Standard ratios
You often have problems with the proportions of oil and fuel for the correct operation of your brushcutter. The reason for this is completely different information in the sources. You may encounter a difference in data on the ratio by a dozen units, and sometimes. by half. That’s why you can’t help wondering how much oil you need for 1 liter of gasoline: 20 ml or all 40. But for this there is a technical passport for the product that you buy in the store. There should be a description of the device, the instructions for its operation and instructions for the rules of preparation of the fuel mixture.
The information recommended by the manufacturer must be taken into account first of all, because if the trimmer breaks down, you can claim it and not a third-party source. If there is no instruction in the passport, and even more so if the passport is missing, it is recommended to look for another model of grass trimmer from a more reliable seller.
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. In general, these units use gasoline AI-92 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, leaving no soot behind.
The standard ratio of synthetic oil to petrol is 1:50. That means 100 ml of oil for 5 litres of petrol, giving an oil consumption of 20 ml per litre of petrol. Knowing the amount of oil needed to dilute 1 liter of fuel, you can easily calculate any rates when preparing fuel for grass trimmer. If mineral oils are used, the standard ratio is often 1: 40. Therefore, 25 ml of such oil is needed for 1 liter of fuel, and 125 ml for a 5-liter canister.
When operating a lawn mower, a person with little experience in this kind of equipment has no difficulty in determining and adjusting the correct oil amount for a specific model. You should only pay attention to the exhaust gases (their color, odor toxicity), the stability of cycles, engine heating and developed power. details about what to expect when mixing petrol and oil in wrong proportions is presented in another article. The following brushcutter models are often rated as working on gasoline AI-95. This also has to be taken into account.
If a producer recommends such octane rating, you should follow the recommendations in order not to shorten the machine working life.
Rules for mixing
Now on to how to mix the components correctly. However, it would be more logical to start with the analysis of widespread, but absolutely unacceptable mistakes that “sin” many owners of this mower unit. The following are considered mistakes of fuel mixture mixing.
- Adding oil to the fuel in the brushcutter fuel tank. This way you will not obtain a homogeneous fuel mixture. It may work, but only if you shake the trimmer for a long time afterwards. But it is unlikely that anyone will do this, given the weight of the machine.
- Pour oil into the mixing container first, and then add gasoline to it. Gasoline has a lower density than oil, so if you add it to the oil, it will remain in the upper layer, which means there will be no natural mixing. Of course, it will be possible to mix then, but it will require much more energy than if you do it the other way around. to pour in oil to the poured gasoline.
- Ignoring precise measuring tools to take the necessary volumes of the ingredients used. In other words, diluting the amount of oil or gasoline “by eye” is a bad habit when operating motor vehicles.
- Take empty drinking water bottles for fuel mixture preparation. Such containers are made of too thin polyethylene, which can be dissolved by gasoline.
Considering all the above, we recommend using the following rules when mixing the fuel mixture for two-stroke grass trimmer engines.
- Use only clean containers made of metal or special plastic for storing gasoline, oil, ready-to-use fuel mixture and its preparation.
- To pour petrol into the expansion tank with a watering can to avoid petrol spillage, and to add oil use a measuring container with volume markings or a 5 ml and 10 ml medical syringe.
- First pour petrol into the canister to prepare the fuel mixture, and then oil.
- To dilute the mixture, pour only half the planned amount of gasoline into the canister first.
- Then add to the gasoline all the amount of oil required to prepare the mixture.
- Thoroughly mix the contents of the expansion tank. It is best to stir in a tightly closed container in a circular motion. You should not use any foreign object to stir the fuel inside the canister, because it is unknown what material this object is made of, what reaction it may enter into with the ingredients of the mixture, how clean it is.
- Add residual petrol to the mixed mixture and stir thoroughly again.
- You can fill the lawnmower’s fuel tank with the mixture you have prepared.
It should be borne in mind that the prepared fuel mixture should not be stored for more than 14 days, as it loses its properties, stratifies and evaporates, which leads to changes in the proportions, and thus deteriorates the performance of the grass trimmer.
Types of engine oils and their purpose
Choice of oil for petrol-engine trimmer
Engine oil for gasoline grass trimmer is a lubricant, which serves to reduce wear and tear between the rubbing parts of the engine.
The oil composition includes residual hydrocarbons and various additives that improve the properties of the final product. To ensure a long-lasting and trouble-free operation of your lawnmower, experts recommend using oils, which by their physical and chemical properties correspond to this type of motor.
Today it is accepted to distinguish three main types of oils by the way they are produced:
- 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 the different types, the manufacturer adds a dye to the oils, which shows the difference in the composition of the lubricant.
Husqvarna oils
Lubricants increase the life of the engine and indirect parts, ensures long trouble-free operation.
Husqvarna all-season oil is one of the best for garden and construction equipment. Protects the engine immediately at start-up and instantly lubricates far-flung structural parts. Features soft texture, anti-corrosive properties, works over a wide temperature range and at high speeds.
Husqvarna oils advantages
- 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, cylinders;
- High fluidity makes it easy for the oil to get to the rubbing parts;
- special additives prevent deposits on crankcase;
- Reduced maintenance costs;
- low volatility, resistance to oxidative processes;
- environmentally friendly and biodegradable components.
Engine oils for 2 and 4 stroke engines
- snow blowers;
- chainsaws and chain saws;
- lawnmowers;
- trimmers;
- blowers;
- power tillers;
- garden tractors and pr.
Summer oils and universal variants for all year round use are available.
Husqvarna 2-stroke HP HP oil 1 liter API SG. the best selling oil in Russia. Its improved formula is adapted for use in harsh latitudes of Russia with low-quality gasoline. Synthetic additives protect the engine from wear, deposits and corrosion, suitable for all 2-stroke machines.
Please note! How to tell the difference between Husqvarna oil and counterfeit:
- HP two-stroke oil is sold in 1 liter only and costs from 799 p.
- Black or yellow laser engraving on the top of the bottle.
- On the side, there is an oil level indicator stripe with notches at 100 ml.
- Date of manufacture includes not only day-month-year, but also time of issue.
- Instructions on the back completely in Russian. There is information on certification, precautions, storage conditions, factory and importer in
- Printed alongside the logo and bar code is part number # 5878085-12.
- Marked “Made in Sweden”, no other official manufacturer.
- The dial on the bottom of the bottle: the center of the circle indicates the year and the arrow points to the month.
- Check ring for opening, engraved H (Husqvarna) logo on lid, with protective aluminum foil underneath.
Husqvarna chain oils
To prevent wear and tear, we use a special low-viscosity oil to lubricate the chain and protect the saw bar. Effective in cold and wet conditions. Can be easily washed away with soap and detergents.
Oil for the air filter
Impregnates the filter and collects dust particles before they enter the engine, thereby increasing engine 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. c. Moscow, metro station Tulskaya, ul. 27/29 Pavlovskaya.
- Send by transport company to any region
To buy Husqvarna oil, place your order online or call or if you want to consult with an expert.
How much oil to use per liter of gasoline??
The instruction for your chainsaw specifies the oil to gasoline ratio, for example, 1:50 for brand name oils means that you mix 50 liters of gasoline with 1 liter of oil. you get the right ratio by adding 20 grams of oil to 1 liter of gasoline.
As a rule, the ratio of oil to petrol for a well-known chainsaw manufacturer is 1:40 or 1:50, which means one part oil to, say, 40 parts petrol. Now the arithmetic is 1 liter of gasoline = 1000 ml of gasoline, divide by 40 and you get 25ml of oil.
How much oil in 1.5 liters of gasoline?
Proportion of oilRatio of mixturePetrol, [liters]Oil, [milliliters]1:501.5 л.30 ml.1:502 л.40 ml.1:503 л.60 ml.10 more lines
Chinese manufacturers most often indicate the ratio of 1 part oil to 25 parts gasoline, the proportion of STIHL and Husqvarna is 1 / 50. When preparing a small volume of mixture (up to 1 liter), it is very important to carefully measure the amount of oil in the mixture.
What kind of gasoline to fill up
for grass trimmer choose unleaded 92 or 95. As practice shows, gasoline AI-80 can lead to device breakdowns, which is a questionable economy. Fuel must be fresh, that is, after purchase it can be stored for no 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.
Two-stroke and four-stroke
Internal combustion engines used in trimmers, there are two-stroke and four-stroke. Two-stroke engines are uncomplicated by design. But require a quality fuel mixture.
Gasoline for a grass trimmer with a two-stroke power unit needs a precise dosage of lubricant. Disregarding the requirement leads to a drastic reduction in engine life. Problems with starting it up.
A four-stroke engine does not require a correct oil to gasoline ratio. The formation of the right mixture is automatic. The components of the combustible mixture are stored in different containers. Fuel is expensive, but the costs are covered by the silent operation of the unit and the environmental friendliness of the exhaust gases.