How much oil to fill in the trimmer for grass on a liter of gasoline
Gasoline mowers are fairly common tools used by garden and homestead owners for mowing grass and making hay. common names for tools are the terms “grass trimmer” and “lawnmower”. The main difference lies in the design of the motor. an expensive segment of the device is equipped with a four-stroke models, and cheap. two-stroke. The latter option has advantages, including low weight, ease of use, as well as low cost.
The most important condition for two-stroke models is to prepare the fuel mixture according to the proportions of gasoline and oil specified by the manufacturer. The simplified design of the engine does not have a separate lubrication channel, so engine oil is added directly to the petrol. Failure to maintain the correct proportions leads to a significant reduction in tool life and even tool breakage. Let’s understand what composition is required for gasoline trimmers, how to properly prepare the mixture and what it can affect.
Lubrication system for two-stroke and four-stroke motors
Four-stroke engines have separate systems for lubrication and air-fuel mixture preparation.
This is why the pump pumps oil directly to the rubbing surfaces, that is to say the crankshaft bearing and the point of contact of the piston with the cylinder walls.
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To do this, the lubricant is poured into a special reservoir where it flows through channels to the friction areas.
Also, oil travels through the crankshaft and connecting rod to the piston and washes it off, lowering the temperature and lubricating the cylinder walls.
Two-stroke engines do not have a separate lubrication system, but they also have a crankshaft bearing, which needs to reduce the friction force.
In such power units, the fuel-air mixture enters first into the crankcase, where the crankshaft bearing is located, and then under the action of depression passes by the piston, cooling it and lubricating the cylinder walls, it enters the combustion chamber.
However, gasoline has no lubricating properties, so such units are fueled with a gasoline mixture, that is, liquid fuel, in which a special oil is added.
the efficiency of fuel mixture lubrication is much lower than that of engine oil, so the service life of a two-stroke engine bearing, and thus the crankshaft and connecting rod, is noticeably shorter than that of the same part of a four-stroke engine.
In addition, the two-stroke lubrication system has special requirements to the oil, because it must maximize the combustion in the cylinder and form a minimum of toxic substances.
What kind of gasoline to fill up
Gasoline for grass trimmers should be chosen from unleaded 92 or 95. Practice shows that AI-80 gasoline can lead to machine breakdowns, which is a questionable savings.
The fuel must be fresh, i.e. after purchase it can be stored for no more than 60 days.
Other factors also affect the quality of fuel, such as the use of a special lubricant for the lawnmower and diluting it in a separate container. It is also advisable to use special canisters designed for storing gasoline.
how often to change
This is a particularly important aspect. it is not just important to fill the engine with fresh oil, but also to know when to do it. Too frequent changes would be a waste of money. Exceeding the recommended interval will result in increased engine wear.
The optimum oil change interval for your lawnmower is indicated in the instruction manual. Here, by the way, you will surely find the recommendations of the most suitable lubricant brands. If there is no documentation, refer to the general recommendations:
When a new engine is running-in, drain the oil and put in new oil after 5-6 hours on average. Then repeat the procedure several more times at intervals of every 5 to 10 hours of machine operation.
For engines that run normally, change oil every 50-60 hours.
The more mileage the engine gets, the more often you need to change the oil in it. In order not to miss an interval, not only keep track of the quantity, but also the quality of the lubricant. If it has become quite dark, it is better not to fill it up with fresh oil, but change it completely.
If during the season you spent on mowing the lawn on your property less than the moto-hour rate, you should fill with fresh oil before preserving the mower for the winter period. It is wise to use winter cold-resistant oil instead of summer oil. At the very least, it will not degrade and volume change due to sub-zero temperatures.
How to pour the fuel in a two-stroke engine
Many people do not follow some important recommendations for filling the gas tank of a grass trimmer or lawnmower, which eventually leads to unpleasant consequences. Let’s consider important recommendations on how to correctly pour diluted fuel from gasoline and oil into the gas tank of a brushcutter:
- Prepare a funnel or a watering can. Despite the large diameter of the petrol tank opening, very often when you try to get into it, some fuel will spill and end up on the body of the tool. The fuel on the tool may cause ignition when heated, so it is very important to use a funnel or watering can
- Before unscrewing the cap, the surface of the tank should be thoroughly cleaned as dirt can get inside and cause fast clogging of the fuel filter
- It is necessary to fill up the fuel in the windless weather or in a secluded place to prevent dust and small grains of sand from getting into the tank
- Do not leave the tank hatch open for a long time as it can get not only fine grains of sand and dust but also insects
- Do not inhale petrol fumes when filling up, because they are harmful to humans. When working with a trimmer, the master must use protective goggles, headphones and a respirator
- It is necessary to pour fuel into the tank up to the mark. If you fill the 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
Given these recommendations, you can significantly extend the life of the gasoline tool in question.
This is interesting! It is also recommended to wear protective gloves when mixing and refueling.
What oil to fill up
When selecting a lubricant, the following basic factors are taken into account:
- provision of engine cooling, protection against thermal shock;
- operation at high revolutions and under high loads
- corrosion resistance during mower downtime in winter;
- no soot and sulfate ash, smokeless;
- environmental friendliness;
- good solubility in gasoline;
- time of storage of the prepared lubricant.
lawnmower oil must meet the requirements of biodegradability, all-season viscosity and economic efficiency.
2-stroke engines require a mix in the manufacturer’s recommended oil to gasoline ratio. For four-stroke engines there is no mixing; the ingredients are poured separately into different containers. Lubrication is by means of oil tubes, pump, filter and valves.
For the lubricant use the types of oil that are most suitable for 2-stroke units:
The fluid composition includes 5-15% of various additives intended to improve efficiency, slow down corrosion and stabilize viscosity.
Lawn mowers with 4-stroke motors require a simple automotive fluid such as SAE30 or 10W40 with the right specifications. An important characteristic of a 4-stroke lawnmower oil is its long-term consistency. The SF composition is suitable for almost all brands of machines. For winter service, a frost-proof fluid is used. In the table you can find the right oil grade to fill the tank of a mower with a 4-stroke motor for working in certain temperature conditions. For example, ALKO or Zubr ZMD-4T-M SAE30 grade mineral engine oil can be used at temperatures starting.5 ° C to 35 ° C, and semi-synthetic Mannol 4-Takt Plus 10W-40 SL with a temperature range from.25°C to 40°C is good for all-season use.
Oil for brushcuts. how to choose, in what proportions to dilute
Many of you have at home a gasoline tool, for example, in a private home can not do without a chainsaw. You know, to prepare wood for the winter, comes in handy on the construction and repair, and in general, it is a very useful tool. If the country house also has a decent-sized plot, then the grass trimmer or lawn mower, which also run on gasoline, is simply necessary to combat the grass.
Of course, you can buy them and electric, but not everyone likes to pull a 30-meter extension cord to mow the area overgrown with grass up to the knee. That’s why most people prefer to work with gasoline tools. As you know, you need to add special oil to gasoline for two-stroke engines. That’s what we’ll talk about, because this is a very important aspect, if you don’t add oil and add it in the wrong proportions, then your engine will “croak” very quickly and your way will be to the service center. To avoid all these troubles, you need to add only quality oil in the correct proportions.
The most popular for chainsaws, brush cutters and trimmers are products of the famous company STIHL. It is sold in 2 packages. 1 liter and 100 ml. For those who do a lot of work, a liter bottle is fine. A container of 1 liter costs 250, and 10 ml costs 60. If you take a large, then the savings are obvious.
You add oil to petrol in the ratio of 1 to 50, so for example you add 100 ml to 5 liters of petrol. As you see, a small bottle is perfect for getting 5 liters of gasoline mix for your chain saw or weed trimmer. On the big bottle there are special marks on the side, by which you can determine how much oil you have poured out of the bottle. If you bought a large 1 liter bottle, then buy a 20ml syringe at the drugstore as well. Very convenient. 1 syringe of oil per 1 liter of gasoline.
The recommendation is to use original STIHL oil for your machines: it is ideal because it has been developed and tested on STIHL power tools in particular. Note that Stihl has its own brands, such as VIKING (popular models of gasoline trimmers). Use Stihl oil for these too and you won’t have any problems at all.
If you put more gasoline mixture than you can use, then it is best to store the remainder in a metal canister or in a glass container. Never store petrol mix in a plastic bottle. Of course, if you use up the rest in a couple of days, you can pour the rest of the mixture into a plastic container, but if the mixture will be stored for a long time, then either a canister or a glass container. The thing is that the gasoline mixture corrodes the plastic bottle, there are microscopic sediments of plastic in the mixture and it is very bad for the engine. Bear this in mind if you want your tool to work for a long time and without problems.
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The second most popular oil brand is the notorious Hooksvarna. Of course, if I think about it that way, more people use STIHL chain saws, at least all my friends and their friends use them only in their work.
However, there are those who cherish Husqvarna tools and I understand them, because I personally do not see much difference between Husqvarna and Stihl, and both tools are of very high quality. But I have seen happy owners of chainsaws Husqvarna. they say the saws are great. Never sawed myself, but I always listen to what people have to say. So, if you have a gasoline tool Husqvarna, then it will be better to use a special brand oil for it. But nothing bad will happen if you dilute the gasoline with Stihl. But since the manufacturer recommends to use only its products, we will do so.
You can find liter capacity on sale. Black stylish bottle, the same marks on the side as Stil (to know how much oil has been poured out of the bottle). Seems to me, the quality is absolutely identical. A bottle like this costs 270, a little more.
Both oils are of high quality, the cost is about the same, each diluted in the ratio of 1 to 50. So feel free to buy any oil of course, better to buy the oil of that brand which you have the tool. then everything will be perfect, just like the manufacturer advises. Have a good time while sawing, mowing grass, and let your power tool work for a long time without breakage.
On another note: the submersible pump “Aquarius 3”. my review.
The use of properly selected oil and gasoline allows the lawn mower motor to use its power reserve very sparingly, thanks to which their service life can be dozens of years.
The main parameter that determines the choice of gasoline or oil is the manufacturer’s recommendation, which can be found in the instruction manual of the machine.
And if you don’t have the manual handy, you can take advantage of the advice in this article. This will help you decide what fuel to pour and what oil to use for gasoline lawnmower, regardless of its brand and characteristics.
Oil for brushcuts. how to choose, in what proportions to dilute
Many of you have gasoline-powered tools in your household, such as a chainsaw in a private home. You know, making firewood for the winter, it comes in handy at construction and repair, and in general, it is a very necessary tool. If your country house also has a decent-sized plot, then the grass will simply need a trimmer or lawn mower, which also run on gasoline.
Sure, you can buy electric ones, but not everyone likes to pull a 30-meter power strip to mow overgrown fields with knee-deep grass. That’s why most people prefer to work with a gasoline-powered tool. As you know, you need to add a special oil for two-stroke engines to the gasoline. We are going to talk about it because it’s a very important aspect, if you don’t add oil and add it in wrong proportions, your engine will die very quickly and your way will be to the service center. To avoid all these troubles, add only high-quality oil and in the correct proportions.
The most popular for chainsaws, brush cutters and trimmers are products of the famous company STIHL. It is sold in 2 packages. 1 liter and 100 ml. For those who work a lot, fit a liter bottle, and “once to saw” is quite enough a small bottle. A 1 liter bottle costs 250, and a 10 ml bottle costs 60. If you take a big one, the savings are obvious.
The oil is added to petrol in proportion of 1 to 50, that is you add 100 ml for 5 liters of petrol, for instance. As you can see, a small bottle is great for getting 5 liters of gasoline mixture for your chain saw or weed trimmer. There are special marks on the side of the large bottle, by which you can determine how much oil you have poured from the bottle. If you bought a large 1 liter bottle, buy a 20 ml syringe at the drugstore. Very convenient. 1 syringe of oil per 1 liter of gasoline.
The recommendation is to use original STIHL oil for your machine: it’s ideal, because it has been developed and tested specifically for STIHL power tools. Note that Stihl has its own brands, such as VIKING (popular models of gasoline trimmers). Use Stihl oil for them as well and you won’t have any problems at all.
If you put more gasoline mixture than you can use, it is best to store the remainder in a metal canister or glass container. Never store the mix in a plastic bottle. Of course, if you use up the rest in a couple of days, you can pour the rest of the mixture and in a plastic container, but if the mixture will be stored for a long time, then either a canister or glass containers. The thing is that the gasoline mixture corrodes the plastic bottle, microscopic deposits of plastic appear in the mixture, and this is very bad for the engine. Keep it in mind if you want your tool to work long and without problems.
The second most popular oil brand is the well-known Hooksvarna. Of course, if you think about it that way, more people use STIHL chain saws, at least all my friends and their friends use them only in their work.
However, there are those who worship Husqvarna tools and I understand them, because I personally do not see much difference between Husqvarna and Stihl, both tools are of very high quality. But I’ve seen some happy Husqvarna chain saw owners. they say the saws are great. I haven’t cut my own saws, but I always listen to what people have to say. So, if you have a gasoline tool Husqvarna, it will be better to use a special brand oil for it. But nothing bad will happen, if you dilute your petrol with Stihl. But since the manufacturer recommends using only its products, then we will do so.
You can find liter bottles on sale. Black stylish bottle, the same marks on the side, as in Stihl (to know how much oil has been poured out of the bottle). To my mind, absolutely identical quality. This bottle is 270, a little more expensive.
Both oils are of high quality, cost about the same, each diluted in the proportion of 1 to 50. So feel free to buy any oil, of course, it’s better to use the oil of your own brand, because then it will be perfect, just like the manufacturer advises. Have a nice and safe sawing, mowing grass, and may your power tool work for a long time without damages.