lawn mower how much oil to put in petrol

How to dilute gasoline 1 to 25?

For example, to prepare a 1:25 mixture you need 1 liter of oil for 25 liters of gasoline.

Amount of gasoline (liters) 1/25 1/50
1 liter of AI-92 gasoline 40 grams of oil 20 grams of oil
2 liters of gasoline AI-92 80 grams of oil 40 grams of oil
3 liter of AI-92 gasoline 120 grams of oil 60 grams of oil
4 liters of AI-92 gasoline 160 grams of oil 80 grams of oil

How much oil to put in your lawnmower?

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

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

S trimmer types

Now on liquid profile trading platforms, a wide range of devices for mowing grass, small bushes. For example, there are lawnmowers with electronic engine, with gasoline engine. The brushcutter is NOT made with a diesel engine, because it has a low revolution speed.

Liquid statistics show the advantage of brushcutters with internal combustion engines, before the electronic counterparts. Electric brushcutter is used in places where there is a fixed electronic network.

Oil requirements

The gasoline-oil mix used for the brushcutter must comply with the following instructions. It is important to note that domestic manufacturers often label their products slightly differently than the American or Japanese classifications. Russian producers of lubricants, as a rule, put a 2T marking on all oils intended for two-stroke engines. It is not rare to find oil cans with o or “pre mix” marking on them in stores. In the first case it means that the oil does not require any additional manipulations, just pour the gasoline and oil into one container, and mixing will take place without human intervention. In the second case, accordingly, it is necessary to shake or shake the mixture to bring it to the desired consistency.

As you can see, the existence of different classifications of lubricants suggests that the use of oils in two-stroke engines is necessary. This is due to the fact that the fuel mixture without lubricant fairly quickly put out of operation ICE, which will not be lubricated properly. Gasoline and oil form the necessary environment that reduces detonation, removes excess debris (waste produced by the combustion of gasoline products) and protects the engine interior from wear.

It is important to remember that using the wrong oil classification may cause engine damage or clogging. It would of course be repairable, but in order to prevent damage and minimize the risk it would be better to read the instruction manual, find out the size of the two-stroke engine installed on the brushcutter and use only gasoline and oil that is compatible with the model in question.

Quite often in the recommendations section (and sometimes on the label), the manufacturer specifies the partner companies whose gasoline and oil it recommends to fill its models. Most often, the fuel and lubricant recommended by the manufacturer will suit the trimmer for grass the best.

First of all, you should immediately exclude all oils of unknown (garage, basement) origin from the list of actively used lubricants. Usually it is not easy to dilute such oils because of the unclear base, composition. As a rule, the labels of non-branded manufacturers do not contain a lot of information, covering only general information, without specifying. It is highly discouraged to dilute and dilute oils such as AC-10 and ACZp-10. The origin of these lubricants is usually quite obscure, it is better to give preference to the proven brands that are used every day by thousands of people around the country.

A distinctive feature of all 2-stroke engine oils is the fact that the manufacturers paint them in a color that contrasts with that of gasoline. The fluid is translucent, viscous in consistency, slightly yellowish, but not dense. It usually comes in three colors. red, green and blue.

Do not forget that the color has no effect on the classification (as is often the case with antifreeze).

Under no circumstances should you use oils from a line not designed for the grass trimmer. It can have an extremely adverse effect on the power unit operation, cause increased fuel consumption, sooting of spark plugs and a number of other problems that will have to be detected and eliminated. It should be noted that if the fact of using oil that is not included in the tolerance is established, the seller has every right to remove the unit from the warranty. This means that the replacement of defective parts will have to be at their own expense, and no exceptions will not help here.

If the fluid you have purchased is not of the quality you claim (for instance, it is too thin), you should never mix it with gasoline. The best way is to return such oil back to the store, explaining to the seller the reason for the return.

How to dilute gasoline and oil for a grass trimmer for refueling

Two-stroke engines of the tool work due to the 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 fail.

Functioning of the two-stroke unit is different from that of four-stroke motors: 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 petrol. The following general rule applies to two-stroke engines. 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

The fuel mixture is mixed in special proportions.

If the fuel mixture is diluted with not enough lubricant, the lawnmower will wear out quickly

You can find the optimum oil to petrol ratio in the instruction manual of your trimmer. As a rule, it is equal to 1:50, 1:40 or 1:25.

Dilute petrol with the lubricant component in a suitable container first: do not do it immediately in the fuel tank. If you ignore this rule, the operation of the motor can be inconsistent, and as a result, the tool will quickly fail. To dilute the fuel mixture, you should not use plastic canisters or bottles, because gasoline can dissolve this synthetic material. The order of mixing the fuel:

  • Pour a liter of gasoline into a container (optimally, a metal canister).
  • Add half of the required percentage of oil.
  • Mix the liquids thoroughly, away from open flames.
  • Pour the rest of the lubricant into the container and stir the mixture again.
  • Pour the fuel into the trimmer’s fuel tank.

Wear a respirator and rubber gloves when carrying out this work. For easy pouring you can use a watering can. The ready mixture should not be stored for more than 3 months, it is better to dilute exactly as much fuel as you need for the planned work in the near future. Be sure to choose high-quality oil for mixing with gasoline, it is better to buy it at proven gas stations.

Oils and fuel ratios

Calculation of the ratio of ingredients for the grass trimmer dressing should take into account the recommendations on the oil package. Standard proportion is 1:50. You can use any quality oil for two-stroke engines.

Choosing lawnmower oil useful recommendations from professionals

If you have lost the instruction manual for your power tool and are having difficulty finding a suitable oil, then it is recommended that you choose the following two options:

  • Semi-synthetic. are cheaper than synthetic, but more expensive than mineral. Suitable for machinery, both Russian-made and foreign. Have low smoke parameters, and decently “take care” of the structural elements of the motor. Produced by distillation of petroleum products and hydrocarbons
  • Synthetic. expensive types of lubricants that are suitable for all types of equipment. If you use synthetics for your grass trimmer, it will run like clockwork

When selecting and buying oils for dilution with gasoline, you may come across the fact that on the canisters there are some letter designations. These designations are API classification, which will be useful to know who wants to pour the right lubricant in the tool. Let’s take a look at all types of oils according to API classification for two-stroke engines:

  • TA. designed for air-cooled devices up to 50 cc. Such equipment includes mopeds, lawnmowers, grass trimmers and brushcutters. Optimal for lawn mowers and grass trimmers
  • TB. used for filling the engines of such units as mopeds, chainsaws, scooters and motorcycles. Engine capacity of such equipment is from 50 to 200 cm3. This oil type is also suitable for trimmers
  • TC. intended for dilution with gasoline and pouring into motorcycles, snowmobiles and other types of land vehicles
  • TD. used for boat motors, jet skis and speedboats

API classification is an American standard used in Europe. However, in the selection there are additional designations on the canisters of two-stroke motor oils, such as FA, FB, FC, FD and others. This is a classification of oils on the emission of smoke, which is developed by the Japanese standard JASO. If there are such designations on the selected oils for trimmers and chain saws, then you should take into account their deciphering:

  • FA. used in the countries which legislation requires minimum emission of smoke into the atmosphere. They emit an imperceptible fog of smoke when in operation
  • FB are designed for use in countries that have strict limits on smoke emissions. Virtually no white smoke
  • FC. The smoke is transparent and not visible to the human eye
  • FD. smokeless types of oils for 2-stroke engines that do not emit smoke, but still have improved chemical properties. They are usually used for mixing with gasoline and filling up boats, launches and yachts

If the container with the lubricant has the designation “self-mix” and “pre-mix”, they mean self-mixing with gasoline (the first option, which does not require shaking) and the need for forced dissolution (the second option).

This is interesting!2T oils for two-stroke engines are marked with the 2T designation. Knowing the classification of oils by their type, it will not be difficult to choose the best option for your brand of lawnmower. On the market you can find all kinds of brands of oils for two-stroke engines, but it’s better to pay special attention to such companies:

  • STIHL. produce mineral and synthetic, and semi-synthetic this brand is rare
  • Shell Helix Ultra. recommended by experts
  • Motul
  • Oleo-Mac
  • Echo
  • Hammerflex
  • Lukoil is a Russian oil that is 3 times cheaper than its foreign counterparts, but has excellent quality indicators

Product are not listed, as vary. There are many other brands, and if you still want to find the perfect lubricant for your grass trimmer, it is recommended to watch the test in the video clip below.

The video shows that it is not always a good idea to buy expensive oils because they may not be of good quality as you can see in the following example.

For brushcutters, grass trimmers and lawn mowers choose synthetic or semi-synthetic oil marked TA or TB. Take into account the manufacturer’s recommendations, as some manufacturers of quality equipment may recommend using only synthetic lubricants.

We deal with the choice of gasoline for a lawnmower AI-92 or AI-95

As many people, so many opinions, which applies not only to the choice of oil for grass trimmer, but also gasoline. Similarly, in order not to make a mistake with the choice, it is recommended to use gasoline of the brand recommended by the manufacturer (indicated in the manual to the tool). However, everything is not so simple here, as each gas station gasoline brand only have the same name, but have a completely different composition. It is necessary to understand, and come to a single conclusion about what brand is better to fill in the gasoline in a two-stroke motor for your trimmer for grass.

Manufacturers recommend using gasoline A-92 for their equipment, and some models require the use of brand A-95, which does not contain ethanol. Use gasoline AI-90 and below is not recommended, as they will entail rapid deterioration of the engine parts. Buying gasoline of one brand, you can not be 100% sure that it corresponds to reality. In the end we get the following picture:

  • The manufacturer recommends filling the grass trimmer fuel brand AI-92
  • The farmer only uses gasoline of this brand, but buys it at gas stations where the price is lower or where it has to
  • This negatively affects the internal parts of the engine, as one gas station. it’s really good quality gasoline AI-92, and the second. in the best case, if it is AI-80, but not AI-76

As a result, the engine suffers, and after a couple of years of operation of the new trimmer for grass arises the need for its overhaul. So you do not have to analyze the quality of fuel or buy only expensive gasoline, it is recommended to fill only one gas station. Gas stations fill only metal cans, not plastic cans.

There are manufacturers who produce special purified fuel for two-stroke engines. If you choose this option, then you don’t need to choose the best gas station, brand of gasoline, and monitor its shelf life.

Conclusion on the choice of gasoline for grass trimmer!

The grass trimmer must be filled with gasoline of the brand recommended by the manufacturer. If you pour gasoline A-95 into the grass trimmer tank instead of A-92 (which is recommended by the manufacturer), the engine will warm up faster and work unstably. It is also better to choose gasoline A-92 Ecto, which has improved characteristics in terms of environmental friendliness.

Choosing lawnmower oil

For trimmer engines, it is necessary to choose oils with the “2T” marking, which are used for ICE with a volume of 50 to 200 cm3 and have air cooling. The first thing to pay attention to when buying oil is not 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, a big expense.

Two-stroke oil for lawn mower

The main factor that determines the quality of oil for grass trimmer is the alkalinity. The oil’s viscosity is what prevents oxidation of moving parts and slows down their breakdown. The oil gradually loses its alkalinity and becomes oxidized through use. The optimum level of acidity (Ph) is 8-9.

The viscosity of the brushcutter oil also has a great impact on the operation of the gasoline tool. This parameter determines the ability to operate the grass trimmer at different temperatures. Summer brands of grease, for example, thicken even when the temperature drops only slightly. Due to the use of the lawnmower exclusively in the spring and fall, an oil with a summer grade is an excellent choice.

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

What to pay attention to when choosing oil?

Modern two-stroke engines of brushcutters are fueled by a mix of gasoline AI-92 and oil marked “2T”. The use of fuel with a higher octane rating will increase the flash point and consequently the burnout of the lubricant.

STIHL oil choices

Undoubtedly, the best oil for the trimmer for grass is the one recommended by the manufacturer, but the owner does not always have the opportunity to buy exactly “branded” lubricant. Experts recommend Shell Helix Ultra, based on Pureplus technology, which enhances the base properties of the lubricant.

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

How much oil to use per liter of gasoline?

Your chainsaw manual says the ratio of oil to gasoline, for example, 1:50 for brand name oils means you mix 50 liters of gasoline with 1 liter of oil. You get the proportion you need by adding 20 grams of oil to 1 liter of gasoline.

As a rule, the ratio of oil to gasoline for chainsaws from reputable manufacturers is 1:40 or 1:50, which means 1 part oil to, say, 40 parts gasoline. Now the arithmetic: 1 liter of petrol = 1000 ml of petrol, divide by 40 and you get 25ml of oil.

How much oil in 1.5 l of gasoline?

Oil RatioMix RatioPetrol, [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, STIHL and Husqvarna make it 1:50. When mixing a small volume of oil (up to 1 liter), it is important to carefully measure the oil in the mixture.

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

If you have bought a trimmer for grass, lawn mower, brush cutter, chainsaw and other types of equipment, you probably know that two-stroke motors are used as power units. These motors do not run on pure gasoline, like four-stroke engines, but on a mixture of gasoline and oil. In what proportion should you dilute gasoline with oil for trimmer for grass. this is the question every dacha owner asks himself before preparing the tool to work. Let’s understand this question 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 wear of the engine. What are the dangers of too much or not enough oil in the gasoline for grass trimmer:

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

In order not to pay for mistakes with the price of an engine overhaul or buying a new tool, you need to fill the tank with fuel of the right consistency from the first day. You may find the ratio in the tool’s instruction manual, because different manufacturers’ models may give different recommendations. Usually this ratio is as follows:

  • 1 to 25, or 40 grams of two-stroke oil per liter of gasoline
  • 1 to 40, or 25 to 30 grams of oil per liter of gasoline
  • 1 to 50, that is 20 grams of oil per liter of petrol

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

In addition to following the proportion, it is also necessary to learn how to prepare the mixture. After all, the option of adding oil to the gas tank, is categorically contraindicated, although some do so. If you have bought a grass trimmer or lawn mower, you will need the consumables you will use for preparing the mixture. Instructions for preparing the fuel mixture in the grass trimmer is as follows:

  • Prepare gasoline and two-stroke oil, based on the above recommendations on the choice of lubricant and fuel
  • In addition, for the preparation of the mixture you need to take a container or container. Usually a plastic bottle is used for this purpose, and the choice of which requires an appropriate approach. It must 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 don’t have to calculate how much oil to pour in a bottle of 1.5, 1.3 or 1.25 liters, because you can easily make a mistake
  • You also need a syringe that is used as an oil measuring device. For such purposes, the usual medical syringe of 10 or more cc is suitable. It is advisable to have an accurate measuring scale on the syringe
  • After preparing the necessary materials, you can proceed to the preparation

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, let’s consider in detail.

ДUse only fresh gasoline for dilution and use in the trimmer.

Rules of mixing

To prepare the fuel mixture, it is necessary to use a clean and dry container that does not contain any foreign inclusions or contaminants. Plastic containers are not recommended. After adding the liquids in the desired proportion, the mixture must be stirred thoroughly for 2-3 minutes. Do not do the following:

  • Add a small amount of oil directly into the gas tank of the brushcutter, as this will not give a homogeneous mixture;
  • Pour oil first, and then gasoline. Because of the difference in density, this order of adding components also results in an uneven mixture4
  • Metering components “by eye”. With this approach to achieve the exact proportion of gasoline and oil for grass trimmer 1/50 or 1/40 will not be possible;
  • Use bottles made of polyethylene, as the latter is dissolved by gasoline.

What kind of gasoline to use

for grass trimmer, choose unleaded 92 or 95. Practice shows that gasoline AI-80 can cause damage to the device, which is a questionable economy. The fuel must be fresh, i.e. it may not be stored for more than 60 days after purchase.

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

Two-stroke and four-stroke

The internal combustion engines used in trimmers are two-stroke and four-stroke. Two-stroke engines are not complex by design. But require a quality fuel mixture.

Gasoline for grass trimmer with a two-stroke power unit needs a precise dosage of lubricating fluid. Neglecting the requirement leads to a sharp reduction in engine life. There are problems with starting it up.

A four-stroke engine does not require a correct oil to gasoline ratio. Formation of the right mixture. 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, the environmental purity of the exhaust gases.