Learning the rule to choose oil for petrol cutters of different brands
Gasoline powered household appliances require a responsible service approach. In order for the tool to please for a long time with trouble-free operation, it is necessary to use fuel and oil for petrol cutters in accordance with the instructions for technical operation. Two-stroke gasoline engines work with the addition of oil to the fuel mixture, four-stroke engines have a separate reservoir in the fuel tank.
Varieties of motor oils, their purpose
According to the method of obtaining the composition, there are:
- mineral obtained from oil distillation;
- synthetic - by synthesis or processing of natural gas;
- semi-synthetic - improved mineral oil due to the introduction of synthetic components.
For safety reasons, in order not to confuse products, the oil turns red, blue or green. The assortment differs in composition, the user needs to buy oil marked: "for garden equipment" 2T, if you need to prepare a mixture for a two-stroke engine, 4T for filling into the crankcase.
Synthetic and mineral oils have different bases and cannot be mixed. When switching to another type of oil, the system must be thoroughly flushed.
Oil for petrol cutters should be classified as a vehicle oil intended for air-cooled engines with a combustion chamber volume of 50-200 cm33... When choosing a product, the important parameter is not the price, but the protective properties for the engine of a particular brand. Therefore, first of all, they buy the recommended oil; in the absence, they select identical ones in terms of indicators.
The base number determines the quality of the petrol brush oil. Alkali neutralizes the process of oxidation of rubbing materials, slows down the destruction of the surface. When the oil becomes oxidized, it loses its protective properties. Normal oil pH is 8-9 units.
Viscosity is an important indicator. Therefore, there is winter, summer and all-season oil. What oil to use for petrol cutters depends on whether the user will work at sub-zero temperatures. Summer oils thicken even with a slight cold snap. The flash point indicates how quickly the oil will burn out of the formulation. It is optimal if this indicator is more than 225 0 FROM.
The procedure for use and the meaning of oil in a two-stroke engine
The operation of the engine is associated with the friction of the moving parts of the cylinder and liner, cams, hinges. When parts friction, the surface heats up, while expanding - seizures. If in the gap between the mating parts there is a composition in the right proportion of oil and gasoline for a petrol cutter, a number of problems are removed:
- parts in the engine work with reduced friction, heat up less;
- grease in the gaps prevents corrosion of parts during long-term storage, washes out particles obtained by friction;
- engine life is lengthened.
The additives used in the composition of the oil in the amount of 5-15% contribute to the appearance of additional properties. It is the additives that create the anti-corrosion, anti-wear and frost-resistant properties of oils.
Incorrect oil composition can destroy the engine, forming carbon deposits in the cylinders, lead to coking and rapid engine wear.
It is important to know how much oil you need to add to your brushcutter gasoline. First of all, you should study the instructions, and maintain the recommended proportions. The use of a composition that takes into account the model and configuration of the engine, climatic conditions and load will extend the life of the brushcutter. Experienced users advise, when purchasing a tool, to immediately buy the recommended oil in reserve.
Requirements for the combustible mixture for a two-stroke engine
The difference between a two-stroke engine is its increased power compared to a four-stroke engine. A combustible mixture is prepared for it in a certain ratio of gasoline and special oil. What is the optimal ratio of oil and gasoline for the brushcutter is written in the instructions. The recommended proportions must be followed exactly. When adding additives, the manufacturer took into account the type of engine. Therefore, mixing different oils is prohibited.
Using mineral oils, mixing takes place in a ratio of 1:25, 1:30, 1:35. For synthetic oils, a ratio of 1:50 or 1:80 is used. This means that in each of the proposed mixtures, the required amount of oil is dissolved in the volume of gasoline. You can mix gasoline with petrol brush oil like water with syrup. Pour gasoline, add the exact amount of oil and shake the mixture. It is advisable to use a fresh solution for work. When stored for more than 2 weeks, the composition changes and the oil film will cause carburetor malfunction.
PET bottles must not be used to dilute and store the combustible mixture. Gasoline destroys plastic, the polymer dissolves in the combustible mixture and further degrades the quality of the fuel, creating the risk of stray currents.
The right choice of oil for petrol cutters
Two-stroke engines are fueled with a mixture of unleaded gasoline and 2T oil. In this case, it is necessary to use the recommended AI-92 gasoline. If you use a brand with a higher octane number, the flash and combustion temperature will be higher, the valves will burn out prematurely. The same applies to oil. The recommended composition is not the most expensive. But using a different brand is not allowed. The viscosity will change, this will lead to insufficient lubrication of conventional products made without high precision lapping.
If too much oil is added, incomplete combustion will lead to sludge formation and excessive exhaust to the atmosphere. A rich mixture is harmful to the engine. For a four-stroke engine, oil is filled separately from gasoline. It washes the nodes, cools, reduces friction. During operation, the oil becomes contaminated and must be replaced after 50 working hours. What kind of oil to fill in the petrol cutter is indicated in the passport. The composition should be marked 4T with a viscosity of 10W40.
The best oil for any engine is the recommended one. However, Shel Helix Ultra oil is world famous. The company has been developing a new technology for producing synthetic oil from natural gas for 40 years. Pureplus technology has resulted in an improved base oil composition. On its basis, with the addition of the necessary additives, leading manufacturers obtain recommended oils for their equipment.
The choice of oil primarily depends on the manufacturer's recommendation. So, oil for petrol cutters Calm use only brand name. The same oil is suitable for the Vityaz brand, since the engines are in brands of the same brand. There is an opinion of experts, oil from any manufacturer, intended for one type of equipment, is suitable for use on all brands. But if possible, it is better to use the recommended one.
An oil supply should be kept as needed for one season. A product that has stood for a long time loses its properties. Available in packages from 0.1 to 5 liters.
The path of the oil recommended for Husqvarna petrol cutters... The company does not have its own production, only a bottling shop. The product purchased in bulk is bottled in small containers, labeled and sent to the retail network. It is possible that exclusive additives for Husqvarna were added to the oil at the manufacturing stage.
The use of oil according to the instruction manual for the brushcutter is mandatory. The equipment cannot operate on pure gasoline.
Thank you for the article! By the way, last year in the store I came across oil from the garden program of the German brand Liquid Moli. At home I read reviews about him, then returned to the store and bought it. I have been using this oil for the 2nd season and am very pleased with it. It does not smoke and mixes well with fuel.