Two-stroke trimmer engine oil – how to dilute it

Measuring tanks

A weighing table on the chain saw body can be used for the right proportion of gasoline and oil. Brand-name containers from leading engine oil manufacturers have built-in measuring devices to ensure accurate oil dosage for different volumes of fuel mixture.

Measuring utensils are factory-installed in many budget-priced chainsaws. In some cases a 20 cm3 syringe filled with medicine can be used to dilute the petrol and oil in the desired proportions.

RYOBI: How to mix and store 2 stroke fuel

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

If you have bought a grass trimmer, 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 gasoline be diluted with oil for grass trimmer. this is the question every dacha owner asks himself before preparing a tool for work. Let’s understand 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. How dangerous is an excessive or insufficient amount of oil in gasoline for grass trimmer:

  • If petrol is 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 carbon deposits on the cylinder walls and a drop in power.This soot will cause piston wear, which will be diagnosed by a decrease in its performance
  • If gasoline contains insufficient oil in the trimmer for grass, it is even more dangerous.After all, the working mechanisms of the engine will not be lubricated in sufficient quantity, which will eventually lead to their rapid wear (there is a rapid destruction of piston rings and jamming of the motor). If the amount of oil in the gasoline in the grass trimmer is insufficient, the wear and tear of the motor will occur dozens of times faster

To avoid having to pay for mistakes at the cost of an engine overhaul or buying a new tool, you need to fill the tank with fuel of the correct consistency from the first day. You can find out the ratio in the instructions to the tool, because different manufacturers’ models may give different recommendations. Usually this ratio is as follows:

  • or 40 grams of two-stroke oil on 1 liter of gasoline
  • 1 to 40, or 25-30 grams of oil for 1 liter of petrol
  • 1 to 50, i.e. 20 grams of oil are added to a liter of gasoline

The standard value is 1:50 (indicated on canisters with oil for two-stroke engines), but it should be relied on as a last resort, because the manufacturers indicate the recommended ratio value, and if it is not observed, the service life of two-stroke motor is reduced.

In addition to observing 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 bought a grass trimmer or lawnmower, you will need the consumables that you will use to prepare 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 for 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, which should be chosen accordingly. It must be clean on the inside. It is not recommended to use a container from milk, beer or other drinks. Mineral water containers are ideal
  • It is very important that the container had a whole value of volume, that is, 1 or 2 liters, so you don’t have to calculate how much to pour oil in a bottle of 1.5 liters, 1.3 or 1.25 liters, because you can easily make a mistake
  • You will also need a syringe, which is used as a measuring tool for dosing the oil. For such purposes, the usual medical syringe of 10 or more cc is suitable. It is desirable to have a precise measuring scale on the syringe
  • Once the necessary materials have been prepared, you can proceed to cooking

Instructions for preparing the fuel mixture into a lawnmower:

    To begin with, the plastic container should be filled. The container should be filled two fingers under, so that the oil can fit

After preparing the fuel mixture for the grass trimmer, it remains to refuel the tool, and start working. How to properly fuel grass trimmers, lawnmowers, chainsaws and other types of motor equipment, let’s consider in detail.

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

Gasoline and oil mixture for two-stroke engines

When buying a device you should read the instructions because the manufacturer may recommend the best way to prepare the fuel mixture. For air-cooled models, a 1:40 mixture is used. For equipment for which synthetic oil is used, fuel diluted in an amount of 1:50 is best suited. Choose the right mixture for your particular machine in each case.

Work must be performed with thick, high-quality gloves

Once the ratio of oil and gasoline for the grass trimmer has been determined, you can fill the device.

It is better to fill the tank with liquids in the fresh air, not in the garage

two-stroke, trimmer, engine, dilute

Recommendations on mixing and filling the tank:

  • automotive products will not work, in stores you need to look for special lines of means labeled “for garden equipment”;
  • Mix liquids directly in the fuel tank is strictly forbidden;
  • Maximum shelf life of the mixture is 30 days.
two-stroke, trimmer, engine, dilute

To find out how to dilute gasoline with oil for grass trimmer, you need to study the instructions for the device.

Always check the gasoline and oil expiration dates

Peculiarities and operation principle of a two-stroke engine

The advantages of a two-stroke engine are in the convenience of service and repair. Its service life is higher than that of a four-stroke. Increased service life is achieved by reducing the number of piston movements.

The operation cycle is completed in one revolution of the crankshaft. There are two strokes: compression and stroke. No fuel inlet or exhaust cycle, unlike a four-stroke engine. In a two-stroke engine, the fuel intake and exhaust process takes place during compression and expansion, i.e.е. during one revolution of the crankshaft.

Thanks to this system, the torque and power of a two-stroke engine is higher than that of a four-stroke. Specific power for the same cubic capacity engine can exceed a four-stroke motor by 50%.