How To Dilute Gasoline With Stihl Trimmer Oil
So, have you finally become the owner of a petrol lawn mower or lawn mower? And your imagination already creates images of how you courageously deal with dense grass. However, the dream of an “ideal lawn” remains a dream when the question involuntarily arises: which oil to use and what are the proportions of mixing it with gasoline?
You can find a lot of information on the correct preparation of the fuel mixture on the Internet. This topic is actively discussed in forums and other thematic resources. But, despite such an active discussion, there are many inconsistencies that we have to deal with.
Actually, it doesn’t matter what technique is used, it can be a lawn mower, lawn mowing or chain saw, they are united by one. Two-stroke gasoline engine. Unlike 4T, it does not have an oil sump. For its nutrition, the preparation of a special fuel mixture consisting of gasoline and oil is required. The resulting liquid is fed directly to the engine (carburetor). During use, all actively working parts are carefully lubricated, contributing to trouble-free operation under any operating conditions.
Lawnmower Engine Oil
Depending on the chemical composition, lubricants are divided into the following main groups:
Mineral They are made on the basis of oils obtained from petroleum distillates. They are highly viscous and require frequent replacement. The material is intended for low power equipment with an air cooling system. It is recommended to use in warm weather.
Semi-synthetic. They represent a kind of “golden mean”. They are based on a mixture of mineral and synthetic oils. Such grease can be used in 2T and 4T engines, landscape gardening and other equipment with air and liquid cooling.
Synthetic. They are made on the basis of special synthetic components containing esters. Differ in low viscosity and long term of operation. They can be used year-round, regardless of temperature conditions. Ideal for complex machinery designed to work in harsh conditions with constant variable performance.
Any two-stroke oil, thanks to its 20% solvent composition, mixes well with fuel and has the characteristic of complete combustion. The second characteristic feature of them is the color, which can be green, red or blue. Of course, this does not mean that some lubricant is better, and some worse. This is done solely so that it is convenient for the user to distinguish oil from pure gasoline.
Motor oil classification:
The required oil parameters for 2T engines are specified in the requirements of API TC JASO FC, API TC JASO FC ISO GD and API TC JASO FC E-GC. The most widely used classification system API. Based on this, 2T engine oils are divided into 4 large groups:
Ta. Suitable for household appliances with an air cooling system and an engine displacement of not more than 50 cm3.
Tb. It is used for more powerful equipment with an air cooling system and an engine capacity of 50. 200 cm3.
Tc. It is used in technology with high demands on the quality of oil. It is a high-performance lubricant for two-stroke engines with a volume of 50. 200 cm3. Great for lawn mowers, lawn mowers, trimmers, chain saws and other garden equipment.
Td. For outboard motors with liquid cooling.
The most suitable material for 2T motors of API-TB and API-TC class. However, you must refer directly to the product passport, where the manufacturer indicates the brand of motor oil recommended for its equipment.
Important! For lawn mowers, lawn mowers and other 2T garden devices, a special engine oil is provided for two-stroke engines with an air cooling system and marked “for garden equipment”. It is forbidden to use lubricant for 2T engines with a liquid cooling system. Oil for boat outboard engines, motorcycles and other equipment is also not recommended.
The ratio of oil to gasoline for lawn mowers: why is accuracy so important?
We all loved to “chew” in childhood, so the process of preparing the fuel mixture is not only simple, but also interesting. First of all, it is worth considering the fact that the proportions of the mixture can be different. It depends on the engine configuration, oil labeling and manufacturer’s recommendations. The fact is that with insufficient lubrication, heating of the cylinder and piston occurs, which leads to shallow tearing of all rubbing surfaces and, consequently, to failure of the cylinder. Piston group. Well, in the case of its excess, on the contrary, we get coking of the piston ring and the formation of a large amount of soot.
And even despite the fact that there is a generally accepted mixture ratio of 2% (for each liter of gasoline 20 ml of lubricant). The proportions in the mixture are still recommended to withstand accurately.
How much oil to pour in gasoline for lawn mowers?
Everything is quite simple, subject to the correct balance, the engine runs in full, all parts are carefully lubricated and not abraded. As a result, we get confidently working equipment that will last more than one season.
To know how much oil to add to the lawn mower, you need to familiarize yourself with the operational characteristics of the product. Proportional ratios can be represented in this form: 1:25, 1:40 and 1:50, which means 1 part of oil for 25, 40 or 50 parts of gasoline.
1 liter of gasoline = 1000 ml
To determine the required amount of oil for a ratio of 1:25, you need 1000/25 and we get a proportion of 40 ml.
We perform the same actions to a ratio of 1:40 and 1:50:
1:40 (per 1 liter of gasoline 25 ml of oil) 1:50 (per 1 liter of gasoline 20 ml of oil)
To ensure that the proportion of oil for lawn mowing is correctly observed, it is recommended to use a special measuring container (not plastic). Exclude a possibility of hit in a fuel mix of dirt and water. This may affect its quality. It’s better to start cooking the mixture with gasoline. Pour it to the desired mark, then add oil. A pair of tank slopes are sufficient for mixing. The liquid quickly connects and takes on a uniform shade, which, depending on the structure of the oil, may be red, green, blue or another. Then the correctly prepared mixture is poured into the fuel tank of the equipment.
Before using the equipment, make sure that the tank cap is tightly closed. If you have more fuel, then the remainder can be stored in a special canister or container for mixing (no more than 14 days). It is recommended to drain fuel that is not used up to the end.
Important! Be sure to follow safety instructions. Mix liquids in an open area so that caustic gasoline fumes do not accumulate in the room. Wear gloves and long sleeve clothing. Do not smoke or set fire to anything.
Ai-92 octane gasoline is considered the most popular type of fuel for two-stroke engines. Due to the relatively low cost, it is extremely rarely falsified. Therefore, not one hundred percent, but in its quality you can be sure. It is also permissible to use a fuel grade AI-95.
As for the storage of fuel, its period should not exceed 3 months. Over time, gasoline loses its properties, the resin content becomes higher and a polymerization process occurs, which adversely affects the combustion chamber. The fuel mixture for lawn mowing made from low-quality materials, settles in the form of soot, as a result of which the main components and systems of the engine suffer.
Recommendations for use and storage
The fuel is ready, filled in the fuel tank, the first spurt and the long-awaited start. However, if you want the equipment to work as long as possible, it is recommended that you first run it in. In order to avoid overheating of the engine, it is recommended to adhere to an average load. After the main elements of the system are carefully lubricated, the load can be increased.
Certain rules should also be followed when preparing the braid for off-season storage:
Drain remaining fuel from the fuel tank and run the final run until the fuel is completely depleted. Then, suspend operation and make sure that the engine is completely cool.
Carefully turn out the spark plug and fill in with about 5 ml of lubricant. Pull the starter handle slowly so that the oil is evenly distributed inside the engine. After that, return the candle to its original state. Store the equipment in a cool, dry place.
The chainsaw engine is the “heart” of the tool, so it is very important to use a properly prepared fuel mixture.
Fuel mixture for a chainsaw It is prepared from two components. Oil and gasoline. Chainsaws are equipped with two-stroke engines, so the oil is not added to the lubrication system (like a four-stroke engine), but directly to gasoline. At the same time, it is very important to observe the correct proportions of the ingredients, of course, in no case try to work on pure gasoline, because in this way you will very quickly “kill” the chainsaw.
If we talk about which gasoline to pour into a chainsaw, it will optimally use fuel with an octane rating A-95, in this case, fuel economy can turn out disastrously. Often, European manufacturers indicate that A-90 or A-92 gasoline can be used, but in post-Soviet countries the quality of gasoline is inferior to European, so in our realities it is better to use better gasoline.
As for the most proportions of a benzo-oiled mixture, then everything is simple: you must follow the instructions for the tool. All manufacturers of chainsaws indicate the necessary ratio in the instruction manual or in the instrument passport, in addition, the proportions for refueling the chainsaw may differ depending on the model of the chainsaw. As a rule, the proportion of oil and gasoline to a chainsaw of famous manufacturers is a ratio of 1:40 or 1:50, which means 1 part of oil for, for example, 40 parts of gasoline. Now arithmetic 1 liter of gasoline = 1000 ml of gasoline, divide by 40 and get 25 ml of oil. If you perform the same steps to the ratio 1:50, then we get 20 ml of oil per 1 liter of gasoline. As for budget-made Chinese chainsaws, the situation is slightly different. The ratio of gasoline and oil for chainsaw made in China 1:25, that is, 1000 ml of gasoline is divided by 25, we get 40 ml of oil. The thing is that in branded chainsaws a good assembly and the distance between the pistons and cylinders in the engine is much smaller than that of Chinese chainsaws, therefore the required amount of oil differs almost twice.
In order to measure the correct portion of oil, use a regular medical syringe of sufficient volume.
Another subtlety. In a dry canister for gasoline, first fill in gasoline, and then oil. On the contrary, the procedure is fraught with a poor quality fuel mixture, because the oil is more dense, sticks to the bottom of the canister. What a good mix.
Be sure to prepare the fuel mixture in a can and pour ready-made special fuel into the gas tank! Never cook or mix directly in the fuel tank of a chainsaw!
If the question of how to breed gasoline for a chainsaw figured out, then on storage conditions and shelf life of the fuel mixture It is worth saying a few words. It’s best and easier to prepare a 1-liter gasoline-oil mixture, it is recommended to do this immediately before working with the tool. The fuel tanks of chainsaws have a volume of 0.3 to 1 liter. In domestic use, in one session, the entire volume of the prepared combustible mixture is rarely used, so the remainder can be saved until the next session. It is necessary to store the fuel mixture in a special canister for gasoline, in a dry, dark place. It is optimal to calculate that shelf life of the finished mixture will be 7-10 days. The fact is that the oil currently on the market is not synthetic, but organic, that is, natural. After 10 days, all lubricating properties are lost, gasoline simply “eats” the oil. Naturally, it is no longer possible to use such fuel, this can cause breakdown and failure of the chainsaw.
At the end of the work, it is necessary to drain the fuel mixture, start the chainsaw, the tool stalls (so that the saw has a dry carburetor) and now you can leave it until the next operation session.
Unsuitable fuel mixture must be disposed of.