How to dilute gasoline and oil for brushcuts

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

Hello! I bought a grass trimmer Prorab 8406 1. How do I dilute the gasoline with oil correctly and in what proportions? I could not find the original Prorab oil, I bought Hungsvarna HP oil. In the instruction to the trimmer it is written from the outside oils it is possible to use oils of class SAE MIF\4, API TC-TB. In the case of using another brand of oil, the proportion of fuel mixture does not change. Standard mix ratio 1:25. But in a specialized store “specialist” who sold me the oil Hungsvarna HP strongly advised to dilute the oil in 1:50 (as written on the oil). The actual question: if it is written in the instruction manual to dilute oil to 1:25, and on the oil is recommended 1:50, then in what proportion dilute? How much is 1:25?? 40 ml? Won’t choke up my engine if I dilute it to 1:50? 2. How to correctly run-in the engine? The manual except for the start and shutoff does not say anything. Maybe you don’t need a run-in? I’ve read that there are grass trimmers that you can use right after you buy them.

Is it necessary to lubricate the gearbox before use or is there factory lubricant already in it?? Hope for your help, thanks!

1) Petrol is diluted with oil ALWAYS in the proportions indicated on the oil can! You cannot run-in 2-stroke engines with 2-stroke products (gasoline-powered trimmers, chain saws, etc.).) You can use any oil for two-stroke engines, except boat two-stroke engines. Preferably use oil from a legitimate store where you are unlikely to buy duds. Husqvarna or STIHL oil is best. STIHL oil should have a sealed throat. Beware of counterfeit products. There is a risk of ruining the piston immediately. 2) You do not run-in on 2-stroke products! PLEASE REMEMBER THAT! All 2 stroke products are high speed and like to run exclusively at full throttle! No half gases allowed! This leads to incomplete exhaust and clogging of the piston walls with oil deposits. Piston scuffing as a consequence. So full throttle and every 25-30 seconds do a 1-2 second throttle dump to give the product a break and return to normal temperature. 3) The gearboxes of direct driveshaft brushcutters must be filled with new oil every 20 hours. The oil flows out naturally during operation. This is to keep dirt, dust etc. out of the gearboxes with the grease. д. So if you don’t want to end up with a gearbox replacement, fill it with special gearbox grease every 20 hours. This is not complicated and the whole operation takes no more than 3 minutes. Tubes of grease are sold in every garden equipment store and cost from 100 to 300. 1 tube lasts about 3 years- The concept of running-in tools is reduced to running under load during the first two or three tanks of fuel. For example, when mowing not dense, low grass, or when sawing dry, not large wood. In no case you should not run the tool in idle running, burning out several tanks of fuel. This additive causes carbon deposits to form on the cylinder windows, piston, and muffler, which adversely affects the engine’s service life.

trimmer for grass, or lawnmower. a tool that can’t do without in the household. Its reliability, efficiency and long service life depend on many factors.

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

Choice of gasoline for trimmers

Gasoline for your power tool should always be selected according to the manufacturer’s recommendations. If you do not observe them, then the engine will soon break down. Unleaded gasoline with an octane rating of 92 or 95 is often used for filling the gas tank of the grass trimmer.

Gasoline for the fuel mix

Filling the grass trimmer with gasoline of the brand AI-80 can lead to device failures due to its low technical characteristics. Note that fuel should not be stored for more than 60 days after purchase.

Do not use polyethylene canisters for storage, t. к. Static electricity is created by contact with the inner walls. Accidental sparks will cause an explosion. Although, there are special plastic canisters labeled “flame.

Features of filling the brushcutter

Depending on engine setup, brushcutters are available as two-stroke and four-stroke models. In the first case, the piston in the internal combustion engine makes 2 moves per working cycle, and in the second case. 4 moves. Differences in the principle of engine operation also determine different approaches to fueling the grass trimmer.

Filling up brushcutters with two-stroke engines

Household brushcutter models usually have a two-stroke engine. The lawnmower does not need much power or agility, so it is well suited to the task. This engine is also much cheaper and simpler. but it is fueled with a fuel mixture of oil and gasoline. This fuel is filled into the carburettor and discharged into the cylinder as an oil and petrol mist. The oil is thereby used to lubricate all the necessary parts and the engine combusts with the petrol during operation. But when it burns, it emits a foul odor and smoke, making the exhaust fumes more toxic.

Important! Such brushcutters use special oil for two-stroke engines, which burns completely without leaving a crust and has very low volatility. And to mix well with gasoline, it contains 20% solvent.

Fueling your brushcutter with a four-stroke engine

Four-stroke engines are used in professional models of brushcutters. They have plenty of power and can run for long periods without interruption or refuelling. They also use gasoline and oil as fuel, but they are poured into different tanks. That means no oil is present in the combustion process and the exhaust fumes are less toxic.

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To recap! In addition to better environmental performance and less heat, four-stroke brushcutter engines are also more economical. They consume much less fuel. savings of up to 50% on gasoline and up to 80% on oil.

How many engine types there are

When choosing a grass trimmer by motor type, there are some features to consider. Aggregates with electric units have significant limitations associated with providing power to the motor. The diesel engines, as on tillers, taking into account the low rpm for trimmers do not offer.

Take into account the peculiarities of the gasoline engines used:

  • Two-stroke cycle. Structurally it is simpler. Quality of the mixture is a point of concern during servicing. any deviations from this quality will shorten the life of the engine.
  • Four-stroke cycle. No specific gasoline to lawnmower oil ratio is required. 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 chosen, oil and gasoline selection is based on the recommendations of individual engine manufacturers.

Types of engine oils and their function

Choosing the right oil for your lawnmower

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

Oil composition includes residual hydrocarbons and various additives that improve properties of the final product. To ensure the long and trouble-free operation of the lawnmower, specialists 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 by 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 avoid mixing of different types the manufacturer adds dye to the oils, which shows the different compositions of the lubricant.

Husqvarna oils

Lubricants increase engine and indirect parts life and provide long, trouble-free operation.

Husqvarna multigrade oil is one of the best for garden and construction equipment. Protects the engine immediately at startup and instantly lubricates far-flung structural parts. Characterized by soft texture, anticorrosive properties, works in a wide range of temperatures and at high revolutions.

Husqvarna oils advantages

  • are suitable for the use of low-quality gasoline;
  • contribute to economical fuel consumption;
  • The thick film of oil protects the engine from wear and corrosion;
  • reduce the appearance of carbon deposits on pistons, cylinders;
  • Due to its high viscosity the oil gets to the parts that rub against each other easily;
  • Special additives prevent deposits in the crankcase;
  • lower maintenance costs;
  • low volatility, resistance to oxidation 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, etc;. promote fuel economy;. have a long service life.

Summer oils and general-purpose options available for year-round use.

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

dilute, gasoline

Take note! How to tell the difference between Husqvarna oil and counterfeit:

  • HP 2-stroke oil is sold in 1 liter only, price. from 799 rubles.
  • Laser engraving on the top of the bottle in black or yellow.
  • On the side there is an oil level indicator stripe with 100 ml notches.
  • Production date includes not only day-month-year, but also time of manufacture.
  • Instruction manual is on the back, completely in Russian. There is information on certification, precautions, storage conditions, factory and importer in
  • In addition to the logo and barcode there is a part number printed like # 5878085-12.
  • Marked “Made in Sweden”, no other official manufacturer.
  • Dial at the bottom of the bottle: in the center of the circle the year is marked and the arrow points to the month.
  • Tamper-evident ring, H (Husqvarna) logo engraved on cover, 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. Washable with soap and detergents.

Oil for 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 Husqvarna Owners Shop.

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

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

What gasoline to fill

Gasoline for grass trimmer should be unleaded with the tact number 92 or 95. As practice shows, gasoline AI-80 can cause damage to the device, 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 lawnmowers 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 lawnmower elements, which contributes to quick wear and tear.

The correct ratio can be found in the trimmer manual. Most often it is 1:25, 1:40, 1:50. 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 permissible to mix petrol and lubricant directly in the fuel tank and the proportions of oil and petrol must be exactly the same. If you ignore this rule, then the work of the grass trimmer engine can 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”.

  • petrol;
  • oil suitable for two-stroke engines with air cooling system;
  • canister, preferably a metal canister;
  • A container for mixing, also preferably metal;
  • gloves;
  • Respirator.
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Make a mixture of petrol and oil as follows:

  • Pour 1 liter of gasoline into a container, add half of the required oil portion. Mix thoroughly, being careful to avoid open flame sources.
  • Add the rest of the oil to the gasoline for the grass trimmer and stir it thoroughly again. You can now add fuel to 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, only high-quality oil can be used, and it is recommended to buy it only at trusted stores, such as specialized hypermarkets.

Consequences of mixing in wrong proportions

When diluting fuels and lubricants, it is very important to comply with the ratio recommended by the hedge trimmer manufacturer. If there is not enough oil, then convulsions form on the piston and cylinder, which sooner or later leads to piston ring failure.

READ How to Properly Attach a Trimmer Harness to a Grass Trimmer Video

And when the excess oil causes coking of the piston ring, as well as carbon deposition on the piston, spark plugs, etc. Д. All this leads to a lot of wear and tear of the equipment and the need for constant cleaning.

Gasoline to lawnmower oil ratio

Lawn mowers are a fairly common technique for controlling weeds on summer homes, homesteads, roads and housing. These devices have two other names. grass trimmer and lawnmower. These units differ in their engines. The more expensive ones have four-stroke engines, while all the rest have two-stroke engines. Of course, the latter is the most popular among the population, as it is both simpler in design, and lighter in weight, and much cheaper than its 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 these components are mixed automatically, you only need to fill the gas tank and oil tank with the appropriate substances. Let’s talk about how to properly fuel a two-stroke brushcutter, because the efficiency and longevity of the machine depends on it.

Standard proportions

According to the standard, to make a petrol-oil mix, it is necessary to take technical liquids in the ratio of 1 to 50. That means that you should add 200 milliliters of oil to 10 liters of gasoline. If you need to dilute the amount per 1 liter of gasoline, then use the formula on the rule of proportion.

Note that when using mineral oil, the proportion is less and is 1 to 40 per liter of gasoline in the standard version.

We learn how to dilute petrol with oil for trimmer when you under or overfill the oil

If you bought a grass trimmer, lawnmower, brushcutter, chainsaw and other types of equipment, you probably know that two-stroke motors are used as power units on them. These motors do not run on pure gasoline, like four-stroke engines, but on a mixture of gasoline and oil. What percentage of petrol should be diluted with grass trimmer oil. this is the question every dacha user asks himself before getting ready to work. Let’s deal with this issue in detail, because 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 are the dangers of excessive or insufficient amounts of oil in gasoline for grass trimmer:

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

In order not to pay for mistakes at the cost of an engine overhaul or buying a new tool, it is necessary to fill the tank with fuel of the correct consistency from the first day. You can find out the ratio in the instruction manual of the tool, because the models of different manufacturers may give different recommendations. Usually this ratio is as follows:

  • 1 to 25 or 40 grams of two-stroke oil per 1 liter of gasoline
  • 1 to 40, or 25-30 grams of oil per liter of gasoline
  • 1 to 50. you add 20 grams of oil per liter of gasoline

The standard value is 1 to 50 (it is indicated on canisters with oil for two-stroke engines), but it should be taken as a last resort, because the manufacturers indicate the recommended proportion, and if it is not observed, the exploitation resource of the two-stroke engine will decrease.

In addition to observing the proportion, it is also necessary to learn how to prepare the mixture. In fact the variant of oil refilling in the gas tank is categorically contraindicated, though some people do so. If you bought a grass trimmer or lawnmower, you will need the consumables you will use to prepare the mixture. The instructions for the preparation of the fuel mixture in the grass trimmer is as follows:

  • Prepare gasoline and two-stroke oil, relying on the above recommendations for lubricant and fuel selection
  • Additionally for preparation of the mixture you need to take a container or a container. Usually a plastic bottle is used for this purpose, which must be chosen accordingly. It must be clean inside. It is not recommended to use a container from under milk, beer or other drinks. A mineral water bottle is best
  • It is very important that the container has a whole value of volume, that is, 1 or 2 liters, so that you do not have to calculate how much oil to pour in a bottle of 1.5 liter, 1.3 or 1.25 liter, because you can easily make a mistake
  • You will also need a syringe, which is used as a measuring device for dosing the oil. An ordinary medical syringe of 10cc or more is suitable for such purposes. It is advisable to have a precise measuring scale on the syringe
  • After preparing the necessary materials, you can begin preparing
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Instructions for preparing the fuel mixture into the lawnmower:

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, consider in detail.

ДOnly fresh gasoline is used in the trimmer for dilution and application.

What gasoline to fill

Gasoline for grass trimmer must be unleaded, 92 or 95 nominal rating. As practice shows, gasoline AI-80 can cause damage to the device, which is a questionable economy.

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

On the quality of fuel affect other factors, such as the use of special lubricant for lawnmowers and dilute it in a separate container. It is also recommended to use special canisters designed for storing gasoline.

How to dilute petrol and oil for grass trimmer

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

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

Do not dilute petrol and lubricant directly in the fuel tank; moreover, the oil and petrol proportions must be exactly the same. If you ignore this rule, the operation of the grass trimmer engine can 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;
  • A canister, preferably a metal one;
  • a container for mixing, also better a metal one;
  • gloves;
  • respirator.

To make a mix of petrol and oil do the following:

dilute, gasoline
  • Pour 1 liter of gasoline into the container and add half of the oil needed. 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 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 gasoline in such an amount that it is enough for several uses.

Only quality oil can be used for dilution, and it is recommended to buy it only from trusted stores, such as specialized hypermarkets.

What is the right way to pour the ready fuel into a two-stroke motor

Many people do not follow some important recommendations for filling the gas tank of a grass trimmer or lawn mower, and it can lead to unpleasant consequences as a result. 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 tank opening, very often when you try to get into it, some of the fuel will spill and end up on the body of the tool. Fuel that gets on the tool can cause ignition when heated, so it’s important to use a funnel or watering can here
  • Before unscrewing the cap, it is a good idea to clean the surface of the tank thoroughly, because dirt can get inside and cause the gas filter to clog quickly
  • Work on filling fuel should be done in calm weather or in a secluded place to avoid the possibility of dust and small grains of sand inside the tank
  • Do not leave the hatch of the tank open for a long time, as it can get not only small grains of sand and dust, but also insects
  • During filling do not inhale gasoline fumes, as they are dangerous to humans. When working with a trimmer, the handyman should use safety glasses, headphones, and a respirator
  • It is necessary to pour fuel into the tank up to the mark. If you fill 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

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

Recommendations for storing the ready fuel mixture for the grass trimmer

After filling up the grass trimmer, many people save the remaining mixture in the bottle until the next time. Sometimes this next time comes not soon, and stretches to the next year. Do not keep the ready-to-use fuel mix for such a long time, because the oil will decompose. After preparing the mixture, it should be used up 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, because the effect will be similar. To prevent unforeseen circumstances, it is recommended to consider the following recommendations for storing the ready-to-use gasoline-oil mixture:

  • Prepare the fuel mixture in the amount that will be used. If you do not know how much fuel you use, 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), it must be completely used up or drained
  • Stir the mixture thoroughly before pouring it into the tank
  • Store the prepared mixture in a tightly screwed container, and in a place restricted to sunlight

If all recommendations are followed, the life of the grass trimmer will be at least as long as the instructions. Using quality consumables paired with compliance with the recommendations on the preparation of the mixture in the trimmer for the grass, will result in a long and efficient service gasoline tool.