Preparing the fuel mixture correctly is not always easy. You need to correctly calculate the proportions, mix the liquids and store the finished mixture correctly. Some drivers use their own recipes, adding their own “secret” ingredients, which may even include soda. To ensure that preparing the fuel mixture is not a problem, you need to adhere to a few simple rules and follow the instructions from the manufacturer.
To prepare the mixture, standard gasoline and oil from various manufacturers are used. What brand of gasoline should be used to prepare the oil fuel mixture? Some people mistakenly believe that 80 grade gasoline is best, because it contains many different additives. This is partly true, but this does not make it better than 92 and 95 grade gasoline.
Moreover, it is very difficult to get 80 grade gasoline in Russia, because not a single major fuel manufacturer in the country currently produces it. Therefore, the best option is 95 grade gasoline, which has almost the same cost as 92 grade gasoline.
What oil is best for making the mixture? It all depends on the driver’s preferences in a particular manufacturer. The only thing is that it is important to use the oil only for its intended purpose. If the oil is for a tractor or boat, then it should not be used for a car.
Features and principle of operation of a two-stroke engine
The advantages of a two-stroke internal combustion engine are ease of maintenance and repair. Its resource is higher than that of a four-stroke. Increased service life is achieved by reducing the number of piston movements.
The working cycle is completed completely in one revolution of the crankshaft. These are two strokes: compression and power stroke. Unlike a four-stroke internal combustion engine, there is no intake phase of the fuel mixture and an exhaust cycle. In a two-stroke engine, the process of injecting fuel and exhausting exhaust gases occurs during compression and expansion, i.e. during one revolution of the crankshaft.
Thanks to this system, the torque and power of a two-stroke engine are higher than that of a four-stroke engine. The specific power with the same engine cubic capacity can exceed a four-stroke engine by 50%.
Chainsaw care - engine, chain, bar
Before moving on to the topic of chainsaw care, it’s worth talking a little about safety of use. The FUBAG FPS 56 chosen as an example is equipped with a chain brake, which prevents the chain from rotating in the event of a kickback. Before starting work, you should always check that the chain brake is working properly.
How to do it? We start the saw at full speed for a couple of seconds and press the safety lever. The chain should stop immediately. If this does not happen, you need to contact the service.
The serviceability of the chain brake can be easily checked even with the engine turned off. It is enough to hit the end of the tire on a hard surface, the protection lever should automatically swing back. Do you remember? Let's move on.
Proper operation guarantees proper operation of the tool for many years. After each working session, it is advisable to clean all elements to get rid of accumulated dust.
Let's start with the engine
Engine maintenance includes blowing the cylinder cooling fins, checking the spark plug, oil, fuel and air filters.
To clean the cylinder fins, remove the air filter and cylinder cover. When reinstalling the cylinder cover, check the correct position of the switch wires and the sealing ring.
To clean the fuel and oil filters, you need to remove them and wash them with chainsaw gasoline, or replace them with a new filter.
It doesn't hurt to check the spark plug periodically. In case of contamination, clean the electrodes with a wire brush and restore the gap to 0.65 mm.
To check the air filter, take it out and remove dust from the surface. If it is very clogged, it is better to wash it in gasoline.
If you clean with compressed air, you should direct the jet to the inner surface.
Chainsaw chain care
During operation, the chain stretches and is poorly fixed on the saw teeth. If the chain nuts are too loose on the saw teeth, then you need to tighten the chain and then tighten the blade itself. When the chain is worn out, it needs to be replaced, but first you can try sharpening it.
It’s easy to find out about link wear:
- Sawdust takes on a powdery form
- Requires more effort to work
- The saw vibrates a lot
- Increased fuel consumption
To sharpen the chain you will need a file (Fubag already comes with one). Having prepared the tool, you can get down to business:
1.
Lock the chain in place
2.
Take a round file of the appropriate size
3.
Place the file on the cutter and begin sharpening, keeping it straight
4.
After sharpening each cutter, measure the depth and grind to the desired size.
5.
To minimize the likelihood of kickback and breakage of the connecting link, round the leading edge.
Consequences of incorrect dosage
Many chainsaw users don't pay enough attention to proportions. 50 grams more or less - does it matter? But in vain: often the cause of saw malfunctions is operation with an incorrectly prepared fuel mixture. Moreover, you can make a mistake or intentionally violate the ratio either up or down.
If there is a lot of oil...
There is an opinion among chainsaw owners that “you can’t ruin an engine with oil.” But it’s not for nothing that they come up with the necessary parameters for the finished mixture. Excess oil can also be harmful and cause inconvenience. Indeed, despite the improved combustion characteristics without residue, some hydrocarbons still turn into soot and carbon deposits. At low concentrations there are few of them, but if you enrich the mixture with oil twice as much as the norm, then coking will result. This is especially dangerous for cheap mineral oils that do not have a “washing” effect.
It is also highly likely that you will find oil in the air filter when the carburetor is overfilled. The candle will also be sooted - it will need to be cleaned, rinsed and dried. Also, vapors from unburned oil will settle in the muffler, and during intensive operation they will burn out, forming a trail of soot and sparks.
After such refueling, almost all the insides of the saw will have to be thoroughly cleaned and rinsed. The funniest “surprise” will be the “dying” of the piston rings - but this is only in the case of systematic abuse of oil overflow and work under heavy load.
...or little
“Greed” when preparing the fuel mixture has ruined more than one piston.
This is where it really is better to be “overcautious” than to be “underdressed.” After all, if in the first case you are faced with a thorough “washing” of the unit, then in the second you will have to change the CPG, and this is generally unprofitable on many saws, but for others it costs quite a lot of money. Conclusion: saving is pointless. If there is not enough oil, the piston begins to rub strongly against the cylinder, since at high temperatures gasoline is too fluid to act as a lubricant.
Sad result: scuff marks on the piston, ruined saw engine. If the owner comes to his senses in time, he will find that the piston and cylinder are cast in a beautiful blue. No master can give a guarantee how long these will last.
How to Dilute Oil for Two-Stroke Engine Trimmers
Content
We learn the rules of choosing oil for lawn mowers of different brands
Home appliances with gasoline engines require a responsible approach to maintenance. In order for the tool to provide trouble-free operation for a long time, you need to use fuel and oil for the lawn mower in accordance with the instructions for technical operation. Two-stroke gasoline engines work by adding oil to the fuel mixture, while four-stroke engines have a separate reservoir in the fuel tank.
Types of motor oils, their purpose
Motor oil is a special formulation of solvent and additives that reduce friction, create suitable fluidity, and prevent thickening as temperatures drop.
According to the method of obtaining the composition there are:
- minerals acquired during the distillation of oil;
- synthetic – by synthesis or processing of natural gas;
- semi-synthetic – improved mineral oil due to the introduction of synthetic components.
For safety reasons, so as not to confuse the products, the oil is colored reddish, blue or green. The assortment differs in composition; the user needs to purchase oil marked: “for garden equipment” 2T, if it is necessary to prepare a mixture for a two-stroke engine , 4T for pouring into the crankcase.
Synthetic and mineral oils have different bases and cannot be combined. When switching to another type of oil, the system must be thoroughly washed.
oil for lawn mowers should be classified as vehicle oils created for engines with a combustion chamber volume of 50-200 cm 3 When choosing a product, the fundamental parameter is not the cost, but the protective characteristics for a particular brand of engine. Therefore, first they purchase the recommended oil, and if it is not available, they select one that is similar in terms of performance.
The alkaline number determines the quality of lawn mower oil. Alkali neutralizes the oxidation process of rubbing materials and slows down the destruction of the surface. When oil becomes oxidized, it loses its protective properties. The usual pH of oil is 8-9 units.
READ How to Mix Gasoline With Chainsaw Oil
The main indicator is viscosity. That’s why there are winter, summer and all-season oils. What oil for a lawn mower depends on whether the user will work at sub-zero temperatures. Summer oils thicken even with slight cooling. The flash point indicates how quickly the oil will burn out of the composition. Features of fuel for two-stroke engines and classification of oils. Practical advice on how to dilute gasoline with trimmer oil. It is normal if this indicator is more than 225 C.
The use and importance of oil in a two-stroke engine
The operation of the motor is associated with friction of the moving parts of the cylinder and liner, cams, and hinges. When parts rub, the surface heats up, and when they expand, scratches occur. If in the gap between the mating parts there is a composition in a suitable proportion of oil and gasoline for a lawn mower, a number of problems are removed:
- parts in the engine operate with reduced friction and heat up less;
- lubricant in the gaps prevents corrosion of parts during long-term storage and washes out particles acquired during friction;
- the service life of the motor is extended.
Preparation of fuel mixture for two-stroke engines
The video shows how to make a fuel mixture for two-stroke engines
. Refueling mowers, chainsaws, etc.
HOW TO CORRECTLY DILUTE GASOLINE WITH OIL 1:50
In this video I will tell you about the correct preparation of the fuel mixture for two-stroke engines
!
The appearance of additional properties is facilitated by the additives used, contained in the oil in an amount of 5-15%. It is the additives that create the anti-corrosion, anti-wear and frost-resistant properties of oils.
An incorrect oil composition can destroy the engine, forming carbon deposits in the cylinders, leading to coking and rapid engine wear.
It is important to know how much oil you need to add to the gasoline for your lawn mower. First of all, you should study the instructions and follow the recommended proportions. Using a composition that takes into account the model and configuration of the engine, climatic conditions and load will extend the life of the lawn mower. Experienced users advise that when purchasing a tool, immediately buy the recommended oil in reserve.
READ Electric Grass Trimmer Which One Is Best To Choose
Requirements for the fuel mixture for a two-stroke engine
The difference between a two-stroke engine is its increased power compared to a four-stroke engine. The combustible mixture for it is prepared in a certain ratio of gasoline and special oil. The optimal ratio of oil and gasoline for a lawn mower 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.
When using mineral oils, mixing occurs in proportions of 1:25, 1:30, 1:35. For synthetic oils, a ratio of 1:50 or 1:80 is used. Properly prepared fuel mixture for two-stroke engines, oil for how. 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 lawn mower oil like water and syrup. It is necessary to pour gasoline, add the exact amount of oil and shake the mixture. It is advisable to use fresh solution for work. If stored for more than 2 weeks, the composition changes, and the oil film will cause carburetor malfunctions.
for diluting and storing flammable mixtures . Gasoline destroys plastic, the polymer dissolves in the combustible mixture and further deteriorates the quality of the fuel, creating the danger of stray currents.
Choosing the right oil for lawn mowers
Two-stroke engines are fueled with a mixture of unleaded gasoline and oil marked 2T. In this case, you need to use the recommended AI-92 gasoline. How to dilute gasoline for a trimmer? How Special oil is sold for How correctly. If you use a brand with a higher octane number, the flash and combustion temperature will be higher, and the valves will burn out prematurely. The same applies to butter. The recommended composition is not the most expensive. But using another brand is unacceptable. The viscosity will change, this will lead to insufficient lubrication of conventional products made without high-precision lapping.
If oil is added in excess, incomplete combustion will lead to the formation of soot and excessive exhaust into the atmosphere. A rich mixture is harmful to the engine. Features of fuel for two-stroke trimmer engines How to dilute oil. For a four-stroke engine, oil is poured separately from gasoline. It washes the components, cools them, and reduces friction. During operation, the oil becomes contaminated and must be replaced after 50 working hours. What kind of oil to pour into the lawn mower is indicated in the passport. Owners of two-stroke engines are already before switching to oil for two-stroke. The composition must be marked 4T with a viscosity of 10W40.
READ Chainsaw Oil Adjustment
The best oil for any engine is the recommended one. However, Shel Helix Ultra oil is world famous. The company has been developing new technology for producing synthetic oil from natural gas for 40 years. Pureplus technology made it possible to obtain 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 recommendations. Thus, only branded oil is used for Stihl lawn mowers. The same oil is suitable for the Vityaz brand, since the engines are of the same brand. There is an opinion among experts that 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.
You should have a supply of oil as needed for one season. A product that has stood for a long time loses its properties. Packages from 0.1 to 5 liters are available for sale.
The path of the oil recommended for the Husqvarna lawn mower has been studied. The company does not have its own production, only a bottling shop. A product purchased in bulk is bottled into small containers, labeled and supplied to the retail chain. It is possible that exclusive additives for Husqvarna were added to the oil at the manufacturing stage.
The use of oil, according to the operating instructions for the brush cutter, is mandatory. The equipment cannot operate on pure gasoline.
Source
Choosing oil for a lawn mower
As mentioned above, lawn mower oil is needed to lubricate the working parts of the engine. When the oily liquid gets inside, it spreads over the parts, ensuring easy gliding, durability and minimal wear of the equipment.
Important! Oil for a 2-stroke engine is absolutely not suitable for a 4-stroke engine.
The difference is that when a 2-stroke engine operates, the oil burns together with gasoline, while the oil for a 4-stroke engine does not burn, but, on the contrary, retains its physical and chemical characteristics.
Important! Under no circumstances should you pour car oil into the tank. Lubricants for cars and trucks are designed for water-cooled mechanisms. And lawn mowers use air cooling. Therefore, garden equipment produces its own products focused on air cooling.
Lubricants for two-stroke engines
Lubricant manufacturers always indicate on the label or in the instructions for use which types of engines the product is suitable for. The following lubricants can be purchased for two-stroke engines:
- synthetic;
- semi-synthetic;
- mineral.
Oil for four-stroke engines
For engines of this type, lubricants marked SAE-30, SAE 20w-50 and SAE 10w-30 are ideal. Numbers and letters indicate the viscosity of the lubricant, as well as weather conditions. For example, SAE-30 and SAE 20w-50 are ideal for summer, while SAE 10w-30 is best used in winter or off-season. For all seasons, it is allowed to use oil marked 5w30. For four-stroke engines, preference is given to semi-synthetic or mineral products.
What oil to dilute gasoline for a motorcycle
Two-stroke engines do not provide for separate filling of lubricant into the engine crankcase.
Strict requirements are imposed on the oil that burns together with the fuel:
- the lubricating fluid must provide effective lubrication of all parts;
- The oil should burn easily and not form carbon deposits after burning.
The use of low-quality oil for two-stroke engines causes the formation of carbon deposits in the working chamber and a decrease in power.
When deciding on the type of oil, you should follow the recommendations of the equipment manufacturer specified in the operating manual. Preference should be given to branded oils produced by well-known manufacturers. The preferred oil class is API-TB. It is also possible to use oil marked API-TC.
The type of lubricant is selected depending on climatic conditions:
- in the warm season, gasoline can be diluted with mineral oil;
- in the winter months you should give preference to synthetic oils;
- For all-season use, branded semi-synthetics are suitable.
When deciding on the type of oil, you should follow the recommendations of the equipment manufacturer.
To obtain detailed information about the temperature threshold for use, you should read the information on the oil packaging. Knowing the ratio of fuel and oil required for stable engine operation, as well as the volume of the gas tank, you can easily calculate how much oil is required for a certain period, taking into account the frequency of trips or use of gas-powered tools.
When buying oil for preparing the fuel mixture, you should pay attention to its purpose. This information is indicated on the packaging. Do not use tractor oil or boat lubricant to mix with gasoline to fuel a scooter or motorcycle. Please note that on the branded label of oil for two-stroke engines it must be designated 2T.
Preparing the fuel mixture for a chainsaw
Let's look at everything in order:
Petrol
Gasoline must have an octane number of at least AI92. You can also fill in AI95, but its quality at our gas stations leaves much to be desired, so if you are not sure of the quality of 95, then it is still better to take AI92 gasoline for diluting gasoline in a chainsaw. You should also not take gasoline that has been sitting for a long time in a canister, tank or any other container. Gasoline for preparing the fuel mixture for a chainsaw must be fresh, otherwise it loses its properties, in particular its octane number, and even if you run the chainsaw on such fuel, it will not produce full power. And the saddest thing in this case is that the failure of a chainsaw due to low-quality fuel is considered a non-warranty case and leads to expensive repairs. Sometimes it’s easier to buy a new chainsaw than to repair it after such a breakdown!
How much oil to pour into gasoline - rules for preparing the mixture
Having figured out how much oil to pour into gasoline, you can start preparing the fuel mixture. To do this, you will need a clean metal or plastic canister. First, the required amount of gasoline is poured, and then lubricating fluid is added in the required volume. After completing the dilution, tilt the canister a couple of times.
As a result of repeated shaking, the liquids are mixed, and the prepared fuel acquires a uniform color. Depending on the color of the oil added, the finished liquid may be greenish, bluish or reddish.
When performing work, safety precautions and fire regulations must be observed. Mixing work must be carried out in a ventilated area, or even better, in outdoor conditions. Smoking is not allowed when working with flammable liquids. Mixing must be done with gloves to protect the skin from contact with aggressive liquids.
The fuel container is filled with the prepared mixture and the gas tank cap is tightly closed. Gasoline mixed with oil can be stored in tightly closed cans. Gasoline mixed with oil retains its properties for a month.
That is why mixing should be done immediately before pouring, taking into account the frequency of use of the scooter or motorcycle.
Types, composition and features of oils for 2-stroke engines
All oils for two-stroke engines have fundamentally the same composition:
- Base - base oil obtained from petroleum or petroleum products;
- Additives are complexes of various components to give the oil the required characteristics.
Mineral and synthetic base oils can be used as a base; the former are obtained by distillation of oil, and the latter - through organic synthesis and other technologies for processing petroleum products and gases. The additive package includes solvents (to increase the ability to mix with gasoline), corrosion inhibitors, viscosity regulators, cleansers (detergents), antioxidants and other components. At the same time, both the base oil and additives are selected in such a way that they do not reduce the quality of the fuel and burn with the formation of a minimum amount of solid soot particles.
Various national and international standards are used to regulate the quality and characteristics of motor oils. Currently, there are four main standards developed by the American Petroleum Institute (API), the Japanese Engine Oil Standards Implementation Panel (JASO), the International Organization for Standardization (ISO) and the National Association of US Shipbuilders (National Marine Manufacturers Association, NMMA).
Most of these standards establish the ash content of lubricants, their degree of solubility in gasoline, operating temperature ranges, cleaning effect and other qualities. The standards also require that the oil be colored blue or another color to reliably identify these materials and visually determine their degree of dissolution in gasoline.
In Russia there is no single standard for lubricants for two-stroke power units; domestic manufacturers use their own specifications, which are often based on the above standards.
It should be noted that many manufacturers of equipment (especially chainsaws, gas mowers, lawn mowers and others) offer their own branded oils for two-stroke engines, which have different markings - HP, HD, XP, etc. However, all these materials in any case comply with one or more of the above standards. Also on oil packages there is the marking “2T”, which only means that this lubricant is intended for two-stroke engines.
Rules for preparing the fuel mixture
The process of preparing the fuel mixture should begin with a detailed familiarization with the instructions attached to it. As mentioned at the beginning of the article, some drivers, who, in their opinion, have incredible experience, do everything “by eye”. Of course, over time, every driver knows how and what needs to be done, however, each mixture has its own differences, so it will never be superfluous to familiarize yourself with the advice from the manufacturer.
The main rules for operating the fuel mixture include:
- Under no circumstances should you reduce the proportion of oil to gasoline. Oil is an expensive component, so many people decide to save on it. However, an insufficient amount of oil in the mixture leads to strong heating of the engine piston and cylinder. Because of this, scuffs appear, which ultimately leads to the need for serious repairs.
- Do not use too much oil in relation to gasoline. Increasing the oil proportions is also detrimental to engine performance. Excessive amounts of oil lead to increased carbon deposits and rapid wear of the motor mechanism. Repair in this case will be as expensive as in the first case.
- The prepared mixture cannot be stored for longer than 30 days. Otherwise, it loses its properties and the use of such a mixture may cause harm to the engine.
- Do not allow dirt, dust and other mechanical debris to enter, which could cause the engine to become unusable.
Table oil gasoline - choose the correct proportion
Beginning motorcycle owners do not always have an idea how much oil to add to gasoline. Depending on the manufacturer's recommendations specified in the instructions, the volume of added lubricant may vary. The most common ratios are 1:50 and also 1:40. Minor deviations from the specified proportions will not affect the operation of the two-stroke engine.
During the break-in period, when intensive grinding of the mating parts of the engine occurs, the amount of oil increases slightly. When the break-in is completed, switch to a different fuel mixture ratio, which involves introducing a smaller amount of oil.
It's not difficult to figure out the proportions. For example, a ratio of 1:50 means that a liter of lubricant should be added to 50 liters of gasoline. Using measuring containers will greatly facilitate the process of preparing the mixture. Depending on the volume of the available container, the amount of added oil changes.
You can quickly prepare the mixture by deciding on the proportions
In particular, for a proportion of 1:50, the table will help determine the volume of oil introduced:
- to dilute 5 liters of gasoline you will need 100 ml of lubricant;
- You will need to pour 200 ml of oil into a ten-liter container;
- 400 ml of lubricant should be added to a 20-liter canister.
Having decided on the proportions, you can quickly prepare the mixture. However, you should not use the gas tank for this, alternately filling in gasoline and oil. Mixing must be done in a separate container.
