How to Calculate Grass Trimmer Gas Consumption

Grass Trimmer Gasoline Consumption for Grass Trimmer Calculation Example

Lawnmower. Very simple device. There is nothing special about it. And so many people buy it for their needs, because everyone can learn how to work with it and quite quickly.

Anyone who has relied on a gas trimmer for grass, should know that for him one of the most important characteristics is fuel consumption. And there is a simple explanation. First of all, the device must perform its functions for a long time, so that there is no need to refuel for a long time. It’s always handy.

GENERAL! But in this case, of course, the fuel tank is larger. As a result, in general, its design becomes complicated. And that makes it more difficult to work with. Is it possible to find a reasonable solution in this situation? You can solve the problem by reducing fuel consumption.

Next we’ll talk about how it can be, what the grass trimmer’s fuel consumption depends on, and advise which gasoline is best for your job.

Types of engines in gasoline mowers

Before pouring gasoline into the fuel tank, it’s important to determine what type of engine is built into the lawnmower. Grass trimmers are available with two-stroke and four-stroke engines. Their refueling and maintenance are quite different.

Grass trimmers with a two-stroke engine

Machinery with two-stroke engines has no oil supply for the lubrication of friction elements. They must therefore be filled with a mixture of gasoline and motor oil. Under no circumstances should you use engine oil intended for cars, as it can put the lawnmower out of operation. For this purpose you need to buy a special oil for two-stroke engines.

Gasoline for a two-stroke engine is AI-92. They can operate on fuel of АI-95, but in this case the engine can overheat during operation.

Lawn mowers with four-stroke engines

Grass trimmers, powered by a four-stroke motor, have a more complex device, providing separate tanks for gasoline and oil. You must not use the lubricant used in two-stroke engines in such devices. Gasoline for a gasoline mower with such a motor can be AI-92 or AI-95. It is not recommended to use fuel with a lower octane number, as this will lead to malfunctions and further malfunctions.

The four-stroke engine is less expensive in terms of gasoline and oil, and emits less exhaust gases.

Lawn mower gasoline consumption

Gasoline lawnmower is not uncommon nowadays, and you can find it almost on every household plot. In its construction there is nothing special, and it can use it even a beginner. However, there are points that you should pay special attention to. You know, for example, what the gas consumption rate of a lawn mower should be. And on what values this figure depends? If not, this article is a very useful source of information for you.

So, first of all, let’s find out what the gasoline consumption of lawn mowers depends on. Several points are important here:

Let’s talk in more detail about each of the factors.

You want your mower to consume as little petrol as possible? Look out for units with a 4-stroke engine, such as the Huter GLM-5.0. Such a model is more expensive than a 2-stroke engine, but its economical fuel consumption will largely cover your budget.

When buying a mower, remember that most of them are designed for flat surfaces. Therefore, if your area is uneven, make sure that your new garden helper has large wheels, which will give it good passability. That way, you won’t have to work too hard and waste a lot of fuel.

It should be noted that for a site with difficult terrain, it is better to buy a front-drive mower, which is endowed with the best maneuverability.

The two are closely linked. The higher the power, the wider the mowing width. Pay attention that in the model you are interested in, these concepts are properly balanced. Accordingly, the greater the mowing width, the less time you will spend on mowing the lawn, and the gasoline consumption for lawn mower in this case will not exceed the norm.

In addition, all cutting parts will not be subjected to heavy loads, which will significantly increase their service life. Recall that all repairs and sharpening of cutting parts should be performed only by a specialist in the service.

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fuel and lubricants and trip sheet

For fuel and lubricants (fuels and lubricants) is understood not only the fuel itself, which is gasoline, diesel or gas, but various lubricants and water (brake, cooling). Fuel and lubricants are any materials that are frequently used in the maintenance of motor vehicles.

For writing off fuels and lubricants in the company Ministry of Transport developed special standards, while the Tax Code does not prohibit use and standards of their own design. In the latter case, they will take into account different reduction and increase factors related to the time of year, weather and the principles of the factors when the operation of the vehicle.

Calculation of fuels and lubricants (under which in our article will be assumed specifically fuel) in the organization is conducted by the primary accounting document. the waybill. It is the waybills that contain information about the time of departure and return of transport to the starting point of the journey, rates of consumption of fuel and other consumables, detailed characteristics of the cargo, as well as data about the purpose of the trip and other information that is relevant to it.

How a grass trimmer uses fuel

Lawnmower. Very simple device. There is nothing special about it. And so many people buy it for their needs, because everyone can learn how to operate it and quite quickly.

Anyone who has relied on a gas grass trimmer should know that one of its most important characteristics is fuel consumption. And there is a simple explanation. First of all, the device must perform its function for a long time, so that there is no need to refuel for a long time. It’s always convenient.

GENERAL! However, in this case, of course, the fuel tank will be large. As a result, its overall design becomes complicated. And that will make it harder to work. Is it possible to find a reasonable solution in this situation? You can solve the problem by reducing your fuel consumption.

Next we’ll talk about how it can be, what the grass trimmer‘s fuel consumption depends on, and advise which gasoline is best for your job.

My car is using too much fuel. it’s broken?

To realize whether your car is essentially consuming a lot, you should compare the actual consumption of your car with the technical data of the automobile company. Although usually the factory specification on fuel consumption has nothing to do with the actual figures of the economy of the car. Still, you will be able to roughly calculate whether your car is actually consuming a lot of fuel, according to the automaker’s data. The matter is that the average real consumption of fuel is 20-30% higher than what automakers claim in their cars’ technical specifications.

So, comparing the real average fuel consumption of your own car (which you, for example, calculated by the above formula) with the official data of automakers, consider this 20-30% difference. If the actual fuel consumption is higher by 40-50% or more, then it is worth finding the cause of overspending, which can be associated with breakdowns, and with your wrong driving style. Also, maybe the premise overrun was bad fuel.

But if your car’s fuel consumption has increased dramatically, despite the fact that you drive on the same roads as before and use the same driving style, there is a high possibility that your car has a fault. These are the main causes of overconsumption of fuel associated with defects:

But that is not all of the factors that lead to high fuel consumption. You can read more about it here.

How to Calculate Grass Trimmer Fuel Consumption

One of the most important problems facing any owner of this equipment. Sometimes manufacturer clearly indicates the fuel consumption per unit of output (horsepower or kilowatt) in grams. You can find this information in the specs chart of the loader. However, for all its usefulness, it does not give a clear indication of how much fuel is required to run.

How to determine the rate of consumption per hour?

  • N. power supply;
  • q. is the specific fuel consumption of the loader;
  • R. fuel density (diesel). It is usually taken as 0,85 kg / dm3;
  • k1. is the percentage of operating time at maximum crankshaft speed.

Power output and specific fuel consumption are listed in the instruction manual. The data is entered there in the form of a graph. It is built by the manufacturer’s specialists. The basis for this is the results of tests in different modes. In practice, it is very easy to reach the maximum speed of the transmission. fully squeeze the gas pedal. As a result, the loader accelerates, overcomes the lift with the load, lifts it to the maximum permissible height, and all this, remember, at maximum speed. Of course, in this mode the loader will work only part of the changes. For this reason it is necessary to use a coefficient designated k1: it characterizes the operation at the maximum speed. It can be called an individual indicator of the specifics of the loader.

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Calculation example

Suppose that a diesel forklift was rented for wagon loading and unloading. It works all shift (8 hours) without overcoming gradients and without using the maximum height of forks, because platforms served by it have a height of only 1500-2000 mm. The maximum speed of the power unit is only used when the machine accelerates to cover the distance between the loading and unloading areas. This operation takes about 30% of the working time.

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But it can be. The company works around the clock. But shipment of materials (products) during this time is done only 2 times in 2 hours. The load time of the loader with minimum or medium intensity is saved.

How to calculate fuel consumption on a trimmer

One of the most important problems faced by any owner of this equipment. Sometimes the manufacturer clearly indicates the fuel consumption per unit of power (horsepower or kilowatt) in grams. You can find this information in the specs table of the load. However, for all its usefulness, it does not give you a clear idea of how much fuel you need to run.

How to determine the rate of consumption per 1 hour?

  • Н. Power supply;
  • Kv. Indicator of specific fuel consumption of the loader;
  • R. Fuel density (diesel). Usually taken in the amount of 0.85 kg / dm3;
  • K1. This is the percentage of operating time at maximum speed of the crankshaft.

Power output and specific fuel consumption are defined in the manual. Data is entered as a graph. It is created by the specialists of the manufacturers. The basis for this is the results of tests in different modes. In practice, it is very easy to achieve the maximum transfer speed. Fully squeeze the gas pedal. The result is that the truck accelerates, goes uphill with a load, lifts it up to the maximum permissible height, and all this, remember, at maximum speed. Of course, in this mode the loader will work only part of the change. Therefore, it is necessary to use the coefficient denoted k1: it characterizes the operation at maximum speed. This can be called an individual indicator of the specifics of the loader.

Example of calculation

Suppose a diesel forklift has been leased to load and unload railcars. It works an entire shift (8 hours) without going over gradients or using the maximum fork because the platforms it serves are only 1500-2000 mm high. The power unit’s maximum speed is only used when the machine is accelerated to cover the distance between the loading and unloading areas. This operation takes up to 30 percent of working time.

But it can be. The company works twenty-four hours a day. But the shipment of materials (products) during this time is carried out only 2 times in 2 hours. The loader’s minimum to medium intensity loading time is maintained.

Care and storage

Gasoline-powered trimmers need to be cleaned, oil changed periodically, and the gearbox lubricated. Before winter storage you need to make inspection and maintenance: drain fuel, drain the remainder of the carburetor, remove and inspect the air filter and engine, do manipulation with the plug and other elements. It is important to store it in a heated, dry room.

The electric trimmer can be damaged by moisture and frost. You also need to lubricate the gearbox and inspect the cable and extension cord for damage before storing it for the winter.

Choosing the right oil for your chain saw

Two-stroke engines are filled with a mix of unleaded gasoline and 2T oil. You should use recommended gasoline AI-92. If a higher octane rating is used, the flash and combustion temperature will be higher and the valves will burn prematurely. The same applies to oil. Recommended compound is not the most expensive. But using a different brand is not permitted. The viscosity will change, it will lead to insufficient lubrication of conventional products made without lapping high precision.

If too much oil is added, incomplete combustion will result in soot deposits and excessive exhaust emissions. A rich mixture is bad for the engine. For four-stroke engines, oil is filled separately from gasoline. It washes components, cools, reduces friction. The oil gets dirty during operation and has to be changed after 50 operating hours. What oil to fill in the lawnmower, see the passport. The composition should be marked as 4T with a viscosity 10W40.

The best oil for any engine is considered to be the recommended oil. However, the world famous oil is Shel Helix Ultra. For 40 years the company has been developing new technology to produce synthetic oil from natural gas. The Pureplus technology has led to an improved base oil composition. On its basis, with addition of necessary additives, the leading producers get recommended oils for their equipment.

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The choice of oil depends primarily on the manufacturer’s recommendations. So only company-approved oil is used. The same oil is good for the brand Vityaz, because the engines in the brands of the same brand. According to experts, any manufacturer’s oil that is suitable for one type of machine can be used for all brands. But if possible, it is better to use the recommended.

Oil that has sat idle for a season should be in stock. Oil that has been left in the machine for a long time loses its properties. On sale are packages from 0.1 to 5 liters.

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The path of oil recommended for. The company has no production facilities of its own, only a bottling plant. The product, bought in bulk, is filled into small containers, labeled and supplied to the retail network. Possibly some additives were added to the oil at the processing stage.

Use of oil according to the instruction manual for your brushcutter is compulsory. The equipment can’t work on pure gasoline.

Dosage of oil for lawnmowers. video

In order for the chainsaw to serve for a long time and not cause repair problems, it is necessary to prepare the fuel mixture correctly. Internet forums are full of questions on the subject. We’ve interviewed experts and made a short guide.

Use AI-92 or AI-95 gasoline for the fuel mixture. A lower octane rating is not acceptable. Always use lead-free gasoline (otherwise the engine will break down) and not old (the octane number can change over time). Boat and four-stroke engine oil is not allowed.

Gasoline and oil should be mixed in strict proportions. Choose API-TB or API-TC synthetic oil for air-cooled two-stroke engines. Don’t skimp on ingredients. Ask for the brands with the best quality in the stores. For example STIHL, Husqvarna, NANOTEC, Champion, ALCO, etc.

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The key is the ratio. Too much oil results in soot deposits on pistons and spark plugs. Excessive gasoline will cause burrs on pistons and rapid engine damage. On average, one liter of gasoline is mixed with 20-50 ml of oil. STIHL and Husqvarna, for example, recommend 100 ml of oil for 4 liters of gasoline. The recommended proportion is optimal for chain saws up to 1.5 kW. For chainsaws of the same brands with power output above 1.5 kW use a 1/50 ratio (100 ml of oil to 5 liters of gasoline). Recommendations of Partner and Jonsered: proportion 1/33 (3.3 L of gasoline, 100 ml of oil). Super-synthetic oil is added at a ratio of 100/1. Recommended Recommended mix ratio for chainsaws up to 1.5 kW. Always use the information in the manual for your chain saw. Give less credence to the numbers on oil labels.

How to mix? You can buy jerrycans with graduated units and two openings for oil and gasoline. Pour the ingredients, tighten the cap and stir by tilting the container.

Many people use glass and plastic bottles, baby horns, and syringes. Be careful with glass and plastic, and beware of static electricity. Make sure no solids or water droplets get into the mixture. Always mix the mixture thoroughly.

Ready fuel should not be stored for more than 25-30 days, i.e.к. the oxidation process changes its composition. Engine failure caused by overfuel is considered nonwarrantable. Repair costs up to 80% of a new chain saw. The parking brake, fuel cap, fuel cap, and fuel mixture may come out of the fuel filler cap.

Remember, your goal is to create a mixture that allows the engine to run smoothly, with complete combustion without fouling, smoke or scuffing.

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What is a gasoline and oil mixture for two-stroke engines? The engine revolves around a fuel-oil mixture that is mixed with gasoline and oil. When properly prepared and balanced, they work long and reliably. On the contrary, in the event of improper use, various technical faults arise. The main reason for such situations is the wrong proportions of fuel mixtures. Partial or complete lack of oil in the fuel tank also causes malfunctions.

A special oil mixture for two-stroke engines is used for fuel preparation. Although two-stroke engines often have different purposes, from gardening appliances to boat engines, the way fuel mixtures are prepared is more or less the same.

Two-stroke engines in various motorized vehicles operate on the basis of a fuel mixture of petrol and oil.

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