Gasoline grass trimmer how to dilute gasoline

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

Gasoline mowers. quite 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 lies in the design of the motor. expensive segment of the device is equipped with a four-stroke models, and the cheapest. with a two-stroke. 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 proportion of gasoline and oil determined by the manufacturer. The 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 proportion 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.

Choice of gasoline for grass trimmer

For some reason everyone prefers to choose the brand of gasoline for trimmers at his discretion. This is an erroneous approach, because, first of all, it is necessary to carefully study the instructions, where the manufacturer’s recommendations for the selection of the type of fuel are given. But this is also no guarantee, because unleaded fuel can be sold under different brands (which are different in many manufacturers), with significantly different composition. Therefore, it is necessary to be guided by the basic characteristics in order to choose gasoline for a particular model of grass trimmer.

Petrol tool manufacturers recommend using gasoline brand AI-92, but for more expensive types will need fuel with a higher octane number. AI-95. Any brand that has the number 90 or less in its marking is not suitable for petrol brushcutters, because it leads to rapid wear and tear. The problem is due to unscrupulous fuel producers who sell a completely different brand under the guise of 92. The situation is as follows:

• In the passport on the gasoline technique there is a recommendation to use gasoline with an octane number not lower than 92;
• The conscientious owner goes to the gas station, where the lowest price and with a clear conscience fills such fuel in a brushcutter;
• 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 need to choose one filling station, which sells proven gasoline (this can be determined by the reviews of regular customers). It is also important where to fill fuel after purchase. only metal containers should be used for this (plastic is prohibited).

It is preferable when it is possible to buy gasoline for grass trimmer with high purity specifically for garden equipment. Then you can be sure of its quality and protection against fakes.

Gasoline

The main component of the fuel mixture for chainsaw engines is gasoline with an octane rating of at least 92. Consumable material with expired storage, made on the basis of gas condensate that has water and mechanical impurities in its volume is not suitable for the preparation of fuel.

• Opinions of experts on the use of different brands of gasoline are mixed. On the one hand it is recognized that domestic gasoline A-92 does not fully comply with European standards.
• On the other hand. the quality of gasoline A-95 is questioned because of the large content of anti-detonation additives. To use this fuel for cooking gasoline for a chainsaw is possible only if you are fully confident in its quality.
• The difficulty lies in the presence of various improving additives, which unscrupulous manufacturers and sellers improve the performance of automobile gasoline with a lower octane rating.

There are also irreversible changes in the operating properties of fuel when it is stored for a long enough time in plastic containers, regardless of its level of gasoline and oil resistance.

What are the chainsaw’s features?

If you have a cottage or a house in the countryside, you need a chainsaw. For home gardening, a chainsaw is more than enough. Not much power, but enough power to remove old tree branches, cut firewood, and remove boards. Such a saw does not have much weight and size. If you need to cut down trees on the plot or are planning construction work, it is better to buy a semi-professional chainsaw. It should not work for more than 8 hours a day. A professional chainsaw has high power and can work up to 16 hours in a row. They are made from high-strength materials and use requires a certain amount of skill. Professional chainsaws are used in industrial felling and other similar applications.

All of these types of saws differ in both power and weight. If you don’t plan on doing a lot of regular work it would be better to use a home chain saw, which weighs considerably less and is therefore easier to handle. Professional saws, on the other hand, are rated at up to 6 kW and therefore weigh more. Which chainsaw is right for you depends on the thickness and toughness of the material you’re sawing.

What are the characteristics of a chainsaw?

If you have a cottage or a house in the countryside you need a chainsaw. An ordinary chainsaw is good enough for your garden. It has a low power, but it is enough to remove old tree limbs, cut firewood and boards. This saw is not very heavy or large. If you have trees to cut in the yard or are doing construction work, a semi-professional chainsaw is the better choice. You should not use it for more than 8 hours a day. A professional chainsaw has high power and can work for up to 16 hours straight. These saws use high-strength materials and require a certain amount of skill to use. Professional chainsaws are used for felling wood on an industrial scale and other similar jobs.

All of these types of saws differ in both power and weight. If you’re not planning major permanent work, it’s better to limit yourself to a household chainsaw, which weighs much less and is therefore easier to handle. Professional saws, on the other hand, are rated at up to 6 kW and therefore weigh more. The choice of such a saw depends on the thickness and strength of the material to be sawn.

Lubricants

Stricter criteria for oil component selection. At best, it is a mineral or semi-synthetic engine oil recommended by the manufacturer, designed for use in high-speed two-stroke air-cooled engines.

Mineral oils have the advantage of lower cost. Their more expensive semi-synthetic and synthetic analogues compare favorably with the improved performance characteristics and compliance with the environmental standards.

• retain their functional properties over a wide temperature range;
• do not form soot deposits;
• contain detergent, antioxidant, preservative and other additives useful for power unit functioning.

Lawn mowers. a fairly common technique for dealing with weeds on suburban plots, in the homestead, road and housing. These devices have two other names. grass trimmer and lawnmower. These machines are differentiated by their engines. The most expensive of them have four-stroke engines, all others have two-stroke engines. Of course, the latter are the most popular among the population, because they are simpler in design, lighter in weight, and much cheaper than their four-stroke competitors. However, two-stroke models are inconvenient because the fuel mixture for them must be prepared manually, maintaining a strict dosage between gasoline and oil. In four-stroke counterparts, mixing of these components is automatic, you only need to fill the gas tank and oil tank with the appropriate substances. Let’s consider the question of correctness of refueling of exactly two-stroke brushcutter, because it depends on how effective and long will be the work of such machine.

Standard proportions

Often there are problems with the proportions of oil and fuel for the reliable operation of the brushcutter. The reason for all this is completely different information in the sources. You may encounter a difference in the ratio data 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 40 ml. But for this, there is a technical datasheet 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 information recommended by the manufacturer is the first thing you should consider, 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 there is no passport, we recommend to look for another grass trimmer model 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. Basically, these units use gasoline AI-92 and a special synthetic oil, which contains a solvent for better mixing with fuel. This oil evaporates slowly, and is able to burn completely in the cylinder, leaving no deposits.

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

When working with lawnmowers, a person with little experience in operating such equipment, will not have difficulty in determining and adjusting the actual amount of oil needed for a particular model. You should only pay attention to the exhaust gases (their color, toxicity of odor), stability of cycles, engine heating and developed power. details about what to expect from the wrong proportions of gasoline and oil mixing is covered in another section of the article. There are variants of brushcutters working on gasoline AI-95. This also has to be taken into account.

If the manufacturer recommends a fuel with such an octane rating, you need to follow the requirements, so as not to reduce the operating life of the equipment.

Choosing lawnmower oil

For trimmer engines it is necessary to choose oils marked “2T”, which are used for internal combustion engines with the volume of 50 cm3 to 200 cm3 and have air cooling. First of all, when buying oil, you should pay attention not to the price, but the protective properties of the material, because a small savings can later become a real headache for the owner and, as a rule, large costs.

2-stroke lawnmower oil

The main factor determining the quality of grass trimmer oil is the alkalinity number. It is this component that eliminates oxidation of rubbing parts and slows down their destruction. During use the oil gradually loses its alkalinity and becomes oxidised. The optimum pH value is 8-9.

The brushcutter oil viscosity also has a big influence on the working process of the petrol-driven tool. This indicator determines the possibility of grass trimmer operation at different temperatures. For example, summer brands of lubricants become thick even at a slight drop in temperature. As lawnmowers are only used in the spring and autumn, an oil with a summer grade is the right choice.

The flash point of grass trimmer oil must be more than 225C, otherwise the oil will burn out quickly and the piston group will be subjected to intensive wear and tear.

What to consider when choosing an oil??

Today’s two-stroke brushcutter engines are powered by a mix of AI-92 gasoline and 2T oil. The use of fuel with a higher octane number will increase the flash point and consequently the burnout of the lubricant.

STIHL fuel types

There is no doubt that 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 helps improve the basic properties of the lubricant.

For gasoline trimmers of the German manufacturer STIHL, it is necessary to use STIHL HP Ultra, STIHL HP, STIHL HP S oils. A budget substitute may be the products of the company Vityaz, which by its properties is most similar to the recommended material.

Types of motor oils and their purpose

Choice of oil for a gasoline trimmer

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

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, which by their physical and chemical properties correspond to this type of motor.

Today it is customary to distinguish between three main types of oils according to the way they are produced:

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

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

Husqvarna oils

Lubricating fluids increase engine and indirect component life, ensures long, trouble-free operation.

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

Husqvarna oils benefits

• Suitable for use with low-quality gasoline;
• contribute to economical fuel consumption;
• Thick oil film protects engine from wear and corrosion;
• reduce the appearance of carbon deposits on pistons and cylinders;
• Thanks to its high viscosity the oil penetrates easily into the parts that rub;
• special additives prevent deposits in crankcase;
• Reduced maintenance costs;
• low volatility, resistant to oxidation processes;
• Eco-friendliness and biodegradability of the components.

Engine oils for 2 and 4 stroke engines

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

Summer oils and all-purpose variants for all-year-round use are available.

Husqvarna HP 2-stroke oil 1 liter API SG. the sales leader in Russia. Its advanced formula is adapted for use in severe latitudes of Russia with poor-quality gasoline. Synthetic additives protect the engine from wear, deposits and corrosion, suitable for any machinery with a 2-stroke engine.

Note! How to tell a Husqvarna oil from a fake:

• HP two-stroke oil is sold in 1 liter volume only, price. from 799 p.
• The top of the bottle is laser engraved in black or yellow.
• Oil level indicator strip on side, notches in 100 ml increments.
• The production date includes not only the day-month-year, but also the time of manufacture.
• Instructions on the back completely in Russian. There is information on certification, precautions, storage conditions, factory and importer in
• In addition to the logo and bar code, the type number # 5878085-12 is printed.
• “Made in Sweden” marking, no other official manufacturer.
• The dial on the bottom of the bottle: the year is indicated in the center of the circle and the arrow points to the month.
• Test ring for opening, engraved H (Husqvarna) logo on cap, 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 humid environments. It can be easily washed off with soap and detergents.

Oil for the air filter

It impregnates the filter and collects the dust particles before they get into the engine, due to which it increases its life and durability. Removable with soap, biodegradable.

See the full catalog of engine oils in our company store Husqvarna.

• Free delivery the day of order in Moscow.
• Self-excursion. c. Moscow, the subway Tul’skaya str. Pavlovskaya 27/29.
• Send by transport company to any region

To buy Husqvarna oil place your order online or call us if you’d like to speak to an expert.

Learning how to dilute gasoline and grass trimmer oil if under or overfill

If you bought a grass trimmer, lawn mower, brush cutter, chainsaw and other types of equipment, you probably know that they use two-stroke motors as power units. These engines do not run on pure gasoline like the four-strokes but on a mixture of gasoline and oil. In what proportion should gasoline be diluted with oil for grass trimmer. this is the question every dacha user asks himself before preparing the tool for work. Let’s understand this issue in detail, as the dilution of gasoline with oil for grass trimmer affects the service life of the tool, and improper preparation of the mixture, will lead to rapid engine wear. What is the danger of too much or not enough oil in the grass trimmer gasoline:

• If the gasoline is diluted with a lot of oil (above the norm), it will not only cause a large amount of smoke, but also a formation of soot on the cylinder walls and a drop in power.This fouling will cause wear on the piston, which will be diagnosed by a decrease in its performance
• If the gasoline contains an insufficient amount of oil poured into the grass trimmer, this is even more dangerous.After all, the working mechanisms of the engine will not be lubricated in sufficient quantity, which will eventually lead to their rapid wear (there is a rapid destruction of the piston rings and seizure of the motor). If the amount of oil in the gasoline in the grass trimmer is insufficient, the wear of the motor will occur dozens of times faster

To avoid having to pay for mistakes at the cost of an engine overhaul or buying a new tool, you need to fill the tank with fuel of the correct consistency from the first day. You can find out the ratio in the instructions to the tool, as models from different manufacturers may give different recommendations. This ratio is usually as follows:

• 1:25 or 40 grams of two-stroke oil per liter of gasoline
• 1 to 40, or 25-30 grams of lubricant per 1 liter of gasoline
• 1 to 50. this is 20 grams of oil added to a liter of gasoline

The standard value is considered 1 to 50 (indicated on canisters of oil for two-stroke motors), but it should be relied on in the most extreme case, because manufacturers indicate the recommended value of the proportion, and if it is not observed, then the operational resource of the two-stroke motor is reduced.

In addition to the proportions, you must also learn how to prepare the mixture. In fact, the option of adding oil to the gas tank, is categorically contraindicated, although some do so. If you have bought a grass trimmer or lawnmower, you will need the consumables you will use to prepare the mixture. The instructions for preparing the fuel mixture in a grass trimmer are as follows:

• Prepare gasoline and two-stroke oil, based on the above recommendations on the choice of lubricant and fuel
• In addition for preparing the mixture you need to take a container or a container. Usually a plastic bottle is used for this purpose, the choice of which requires an appropriate approach. It should be clean inside. It is not recommended to use a container from under milk, beer or other beverages. The optimal variant is a container from under mineral water
• It is very important that the container has a whole value of volume, that is 1 or 2 liters, so you do not have to calculate how much oil to pour in a bottle of 1.5 liters, 1.3 or 1.25 liters because so you can easily make a mistake
• You will also need a syringe, which is used as a measuring device for dosing the oil. A normal 10cc or larger medicine syringe is adequate for this application. It is desirable to have a precise measuring scale on the syringe
• After preparing the necessary materials, you can begin preparing the

Instructions for preparing the fuel mixture into the lawn trimmer:

After preparing the fuel mixture for the grass trimmer, it remains to refuel the tool, and get to work. How to properly fuel grass trimmers, lawnmowers, chainsaws and other types of motor equipment, let’s consider in detail.

ДOnly fresh gasoline is used to dilute and apply in the trimmer.

Rules of mixing

To prepare the fuel mixture, you must use a clean and dry container that is free from foreign particles or impurities. Plastic containers are not recommended. After adding liquids in proper proportions, stir the mixture thoroughly for 2-3 minutes. Do not do the following:

• Add a small amount of oil directly to the brushcutter’s gas tank, as it will not make a homogeneous mixture;
• Add oil first, then gasoline. Density differences also make the mixture not homogenous by this order of adding ingredients4
• Metering by eye. This approach does not allow you to achieve an exact 1/50 or 1/40 ratio of gasoline and grass trimmer oil;
• Use polyethylene bottles, because polyethylene dissolves in gasoline.

How to Mix (Dilute) Gasoline and Oil for 2T Engines.

to summarize. Use an oil designed or recommended by the equipment manufacturer for your brand-name equipment. For example, STIHL FS 55 brushcutter, STIHL HP oil (see the STIHL manual for STIHL trimmers) is ideal for grass trimmers. Figure 1a) or STIHL HP SUPER, for the Husqvarna 128R brushcutter use Husqvarna HP oil (Figure 1b) or Husqvarna LS. For 2.do not use engine oils for 4-stroke engines. for example 10W30, SAE 30, etc.д.

Figure 1 a-Husqvarna oil (left), STIHL oil (right)

Useful tip

Never use 2-stroke oil intended for water-cooled engines, as these oils are designed to operate at lower temperatures.

You should follow the proportions of oil and gasoline for the fuel mixture specified by the manufacturers in the owner’s manual. Chinese manufacturers most often say 1 part oil to 25 parts gasoline, and STIHL and Husqvarna oil 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. Even small miscalculations in the amount of oil can lead to serious inconsistencies in the mixture. In such cases, a syringe filled with medicinal fluid can be used for accurate dispensing.Fuel mixture must be prepared in a clean container designed specifically for this purpose. (see Figure 3). Figure 2)

Useful Tip

I do not recommend the use of improvised plastic bottles and canisters, as gasoline can dissolve plastics and all this “slurry” gets into the fuel tank and disables the carburetor.

Plastic canisters designed for gasoline are always marked with a “flame” sign. It is very convenient to use a canister equipped with a spill-free filling system (see figure 2). figure 3). The no-fill system has a valve that prevents fuel from spilling when the tank is full.

Figure 3. No-fill system

What’s the best oil to choose for boat motors.

Also note that if these oils cannot be used to make gasoline mixture for boat engines. 2T motor units require a mix of gasoline with an octane rating of at least 89 and high-purity detergent oil grade NMMATC-W3 in the ratio of 1:50 for operating conditions, and. 1:25 for break-in period (first 5-10 hours). Choosing a quality oil.The basis of engine operation, so each manufacturer recommends pouring certain brands of oil into equipment, thereby guaranteeing the longest service life of the product. For boat engines (both 2t and 4t) tohatus service center recommends to use german motul or american quicksilver oils. For mercury outboard engines, you should use only quicksilver motor oil. Motul and statoil are the preferred brands for Honda motors.

Useful tip

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