What is the best gasoline for grass trimmer?.

How much oil to fill in the trimmer for grass per 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 “lawn mower”. 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 a small weight, ease of use, as well as a 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. The simplified design of the motor does not provide a separate channel for lubrication, so engine oil is added directly to the gasoline. Failure to maintain the correct proportions can significantly reduce tool life and even lead to tool failure. Let’s understand what composition is required for gasoline trimmers, how to properly prepare the mixture and what it can affect.

Oil and gasoline. together or separately?

Buyers of garden units often wonder how much oil per liter of gasoline should be diluted to pour into the engine? But this task applies only to chain saws, trimmers, brushcuts and other equipment, in which compact two-stroke engines are installed, the action of which is based on the burning of a mixture in a certain proportion of gasoline and oil.

Luckily, STIHL lawnmowers owners don’t need to know that: the STIHL range only uses four-stroke engines. Their design is different in the way they lubricate the parts that come into contact with each other, and also in the way the fuel is supplied. These units run exclusively on clean gasoline, which is stored in a special tank. The dilemma of how much oil to put in petrol is irrelevant here. It is located separately in a sump or crankcase, which is also referred to as an oil bath, and is poured only separately from the fuel.

What oil to use?

The service life of an engine largely depends on whether the proportions of oil and gasoline are maintained. Let’s consider why it is so important. The fuel mixture in the carburetor is enriched with air and enters the cylinders as a mist. The oil is responsible for lubricating the parts that are subjected to friction. If there is a shortage of lubricant, the engine component parts become more loaded, dry parts rub against each other heavily, chipping and scratching occur as a result. Over time, it can lead to the deterioration of engine performance, as well as premature engine failure.

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If oil is in excessive supply, it has no time to burn. Residues in the form of carbon deposits and sludge remain on the surface of the parts, eventually transforming into coke, slag. This also negatively affects the functionality of the power unit.

What kind of gasoline is suitable for different engine types?

The motor of any grass trimmer, regardless of the type, is designed to work on unleaded gasoline AI-92.

Nevertheless, the engine can run on other types of gasoline, such as AI-76 or AI-95, but it is acceptable only for a short time, i.e. dozens of minutes.

Long periods of operation with unsuitable fuel can lead to burnt valves and other problems that can lead to repairs or engine replacement.

Liter Power

In 4-stroke engines one stroke takes two crankshaft revolutions, in 2-stroke engines one stroke takes one crankshaft revolution. That’s why we conclude that a two-stroke engine should have twice the power of a four-stroke. In practice, it is only 1.5 to 1.8 times better.

The combustion products in 2-stroke engines are displaced by the air-fuel mixture. Not much working fluid escapes with the exhaust. 4-stroke engines burn all the fuel, so they use less gasoline. Lawn trimmers with 4-stroke engines are considered more economical to operate.

Gasoline grass trimmer is a tool for green forage and other operations related to grass mowing, but its effective and long-lasting operation is possible only if it is properly selected.

Now you know how and by what parameters to pick up brushcutter correctly and what is better to choose a grass trimmer to mow the grass at dacha or near the house with regard to price and quality.

How much oil to put in your petrol for your lawnmower

Dvozhki internal combustion engines used in lawnmowers, are 2 and 4 stroke. Users should be aware that the oil for a 4-stroke lawnmower is mixed separately from the petrol. For the two-stroke engine the oil is added to the fuel mix. Different formulations that cannot be interchanged or combined.

The energy transmitted by the motor shaft to the rotating mechanisms comes out due to the adiabatic expansion of gases at the moment of explosion in the combustion chamber. By the movement of the piston in the combustion chamber, the gases are compressed. This means that the system works with less clearance and the wear and tear of the mating parts. The gap between the parts grows and the compression is miniaturized, the right pressure for ignition of the fuel-air mixture is not reached.

This would be the case if the lapped parts were operated without lubrication. Engine oil for lawnmowers, added to the gasoline or getting on nodes from the crankcase, applied a narrow film on the borders of the parts, preventing wear, scuffing. As it is not realistic to completely remove wear and tear, oil washes out the micro particles in the gaps, don’t let them destroy the surface.

Prepared fuel mixture should be used in a steel or polypropylene container. Do not store the compound with gasoline in polyethylene bottles. Decomposition products will get into the mixture and scale will grow in the combustion chamber.

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The device 4 and 4-stroke types are different for this reason the mixture of lubricants, additives there are different. Who kind of mating knots in mechanisms asks for types of greasing, corresponding to character of movement of this knot. What oil to pour into the lawnmower, the manufacturer recommends in the instruction manual.

Oil for brushcutter. how to choose, in what proportions dilute

Many of you have in the household benzoinstrument, for example, in a private home can not do without a chainsaw. You know, to prepare wood for the winter, it comes in handy at construction and repair and, generally, it’s a very useful tool. If your country house has a decent-sized plot, you just need a trimmer or lawn mower to deal with grass, which also run on gasoline.

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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 to the knee. That’s why most people prefer to work with gasoline-powered tools. As you know, you need to add a special oil for two-stroke engines to gasoline. Here we will talk about it, because this is a very important aspect, if you do not add oil and add in the wrong proportions, then your engine very quickly “will fail” and your way will lie in the service center. To avoid all this mess, you need to add only high-quality oil in the right proportions.

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The most popular for chain saws, brush cutters and trimmers are products of famous company STIHL. It is sold in two packages, 1 liter and 100ml. For those who work a lot, a liter bottle is fine, and a small bottle will be enough for “one time sawing”. A 1 liter container costs 250 and a 10 ml bottle costs 60. If you buy a big one, you will save a lot of money.

Add oil to petrol in the ratio of 1 to 50, so you add 100 ml for 5 liters of petrol. As you can see, a small bottle is perfect for getting 5 liters of gasoline mix for your chain saw or weed trimmer. The large bottle has special markings on the side so you can see how much oil you have poured out of the bottle. If you bought a big 1 liter bottle, you should buy a 20ml syringe at a drugstore. Very convenient. 1 syringe of oil for 1 liter of gasoline.

We advise you to use a brand-name oil for your machine because this is ideal because it has been developed and tested specifically for STIHL power tools. I will 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 leftovers in a metal canister or in a glass container. Never store the mix in a plastic bottle. Of course, if you use up the leftovers in a couple of days, you can pour the rest of the mixture into a plastic canister, 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, microscopic deposits of plastic appear in the mixture and this is very bad for the engine. Keep that in mind if you want your tool to run long and without problems.

The second most popular brand of oil is the unbeknownst Hooksvarna. Of course, when you put it this way, more people use STIHL chain saws, at least all my friends and their friends only use them in their work.

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But there are those who cherish 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 have seen some happy Husqvarna chain saw owners. they say the saws are great. I have not cut any saws myself, but I always listen to what people say. So if you have a Husqvarna chain saw, it is better to use a special brand oil for it. Although nothing terrible will happen if you dilute the gasoline with Stihl. But since the manufacturer recommends using only its products, then we do so.

On sale you can find a liter capacity. Black stylish bottle, the same markings on the side as on the Stihl (to know how much oil has been poured out of the bottle). Seems to me absolutely identical quality. It costs 270, a little more expensive.

Both oils are of good quality, cost about the same, each diluted in the proportion of 1 to 50. So feel free to buy any oil, of course, better to take the oil of the brand that you have a tool. then everything will be perfect, just as the manufacturer advises. Have a good time while mowing and let your petrol lawnmower work for a long time without failures.

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The use of properly selected oil and gasoline allows the lawnmower 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.

If you don’t have the manual handy, you can use the recommendations you found in the article. This is to help you decide what kind of fuel and oil to use for your petrol lawnmower, regardless of brand and specification.