AI-92 is better than AI-95?
Let’s deal with the myths. They say that in fact AI.92 is better than AI.95, because there are no additives in it.
In fact: in fuel companies it is practiced to raise the octane number by injecting additives into the fuel.
This is cheaper than buying expensive fuel. As a result, AI.95 and even 98 are often derived from AI-92, and even AI-80. In this case, the statement that 92 gasoline is cleaner than 95 sounds logical.
It is clear that a full-fledged 95th with such manipulations will never work. However, the purity of gasoline cannot be called its main parameter.
What kind of gasoline do you fill in Rav 4
Among Toyota owners, disputes often flare up on the topic: which gasoline can be poured into Rav 4 and which one cannot. As if the people do not know that there is an instruction in the glove compartment, and everything is spelled out there.
How to start your Ryobi EasyStart™ Petrol Brush Cutter RBC52FSBO & RBC52FSBOS
If you refuel 92 instead of 95, nothing bad will happen?
They say that in any car, instead of the desired 95th, you can regularly fill the 92nd. So what gasoline to fill Rav 4?
For drivers, the decisive factors when choosing gasoline are price and quality. The RAV 4 motor will use AI-92 instead of 95 without problems, but problems may arise from the owner of the car, who will not receive any savings and benefit from such a substitution.
The first reason is that the engine burns more fuel with a lower octane number. The second reason is that the combustion of the fuel-air mixture is disrupted. The burning speed increases, and it is explosive, the front spreads at a speed of up to 2 km per second, which is much higher than the norm. The blast waves hit the walls inside the combustion chamber and a recognizable metallic sound is heard in the engine. There is also a strong vibration of the motor due to the shock waves. Engine wear is accelerated many times over. Outwardly, this is noticeable in the dark, to black, exhaust. All this beauty is called detonation.
In many modern cars, and in RAV 4, there are knock prevention systems inside the engines, but their operation leads to a drop in power.
Look at the inside of the RAV 4 gas tank cap, it indicates which fuel should be poured into the car. There are cars with internal combustion engines adapted for various gasolines. In such cases, even a fuel cocktail is safe.
We look at the manual
4th generation Rav4 engines:
Work of a brush cutter on clean gasoline – the consequences
- 150-horsepower 2-liter gasoline engine, brand 3ZR-FE. basic;
- another 2.0 3ZR-FAE;
- 2.5 liter gasoline with a capacity of 180 horsepower. 2AR-FE;
- diesel engine for 150 horsepower. 2AD-FTV.
In the gasoline 2.0 3ZR-FE RAV 4 4 generations, it is theoretically possible to fill 92 gasoline. This is permitted by the manufacturer itself. To find out which power plant is on the Rav4, you need to look at the registration certificate, there is a column “engine power”.
The second way to find out the information is to decode the VIN number, which can be viewed under the state number in the certificate. There is also an online service where you can find out all the technical characteristics of the car by the VIN code.
The manufacturer itself in 2.0 3ZR-FE and 2.5 2AR-FE Toyota recommends filling AI-92 gasoline, but pay attention to the quality of the fuel at our gas stations!
The question arises: “Do the Japanese know what 92 gasoline is in our country?” Even visually. at one gas station it is yellow, at the other. white, and even with the smell of acetone. Therefore, the advice of experienced: fill in gasoline Rav 4 AI-95.
The engine 2.0 3ZR-FAE Toyota is recommended to refuel AI-95, do not torment your “horse”!
Better to mix AI-92 and AI-95?
They say that many car owners, not knowing what gasoline to pour into Rav 4, mix AI.95 with AI.92, getting a fuel cocktail. They explain this position by the fact that when mixing, the fuel characteristics improve, and the car starts to go faster, while the price remains at an acceptable level.
In fact, an increase in dynamics is unlikely. But inside the engine, the combustion temperature of the fuel rises when high-octane gasoline burns with weak compression. As a result, the exhaust valves burn out ahead of time. So, saving a penny on gasoline, short-sighted drivers spoil an expensive engine. Fuel burns more slowly, the higher the octane number.
Modern cars are adapted to any fuel, but the lower the octane number, the lower the engine power, and the higher the fuel consumption.
Speculation about what kind of gasoline to fill
In Russia, as soon as RAV 4 appeared, the question arose: what kind of gasoline is suitable for Rav 4, what is better to fill. AI-92 does not frighten someone, and they boldly use it. Someone does not recognize anything other than the AI-95, because the priority is power and quality. Someone independently adds additives to gasoline, supposedly improving its characteristics.
Do not guess what gasoline to fill in your Rav 4. Work hard and find out what fuel the manufacturer recommends to fill in your own product. If something is still not clear, study the topic of detonation in detail.
But the principle is the same everywhere. if the Japanese wrote in the manual that you can fill in gasoline from the 92nd into RAV 4, then, taking into account our realities, stop at the 95th. Exceptions can be made only for gas stations in which you are sure.
If the mixture is diluted correctly, for example, following the instructions below, then the equipment will serve you for more than one year without serious technical breakdowns. At the same time, fuel consumption will be low, and the result of work will be high. The fuel preparation process must always be the same and constant. It is better to use the same ingredients always, without changing the brand indicated by the manufacturer.
It is not worth adding a lot of oil, it can damage the operation of the engine, but you should not save on it either. To maintain the correct proportions, always use the same measuring container, so as not to be mistaken with the quantity. Medical syringes can be used to measure the oil, but some manufacturers, along with the oil, provide a measuring container with risks in the kit.
The most correct ratio of oil and gasoline is 1 to 50, where 50 is the amount of gasoline, and the amount of oil is 1. For a better understanding, let us explain that 1 liter is equal to 1000 ml. So, to get a ratio of 1 to 50, divide 1000 ml by 50, we get 20 ml. As a result, only 20 milliliters of oil need to be added to 1 liter of gasoline. To dilute 5 liters of gasoline, you need 100 ml of oil.
In addition to maintaining the correct proportion, it is necessary to follow the mixing technology of the ingredients. In no case should you just add oil to the gas tank. It is better to follow the following step by step instructions.
- To dilute the mixture, you must prepare in advance a container in which you will mix gasoline and oil. This can be a clean metal or plastic canister with a volume of 3, 5 or 10 liters to make it easier to calculate the amount of oil. Do not use drinking water bottles for this purpose. they are made of thin plastic that can dissolve from gasoline. Use a special measuring container to measure the oil. But if there is none, then, as already noted, medical syringes with a large dosage will do.
- Pour gasoline into the canister, without adding a couple of centimeters to the full volume. In order not to spill gasoline, take a watering can or insert a funnel into the neck of the canister. Then take the required amount of oil into a syringe or measuring device and pour it into a container with gasoline. It is not recommended to do the opposite. pour gasoline into oil.
- Close the bottle tightly and stir the mixture. If during the preparation of the mixture or its mixing, part of the fuel spills out, immediately wipe the canister with a dry cloth.
- Be sure to follow fire safety measures. Dilute the mixture away from fire and never leave leftover fuel or used materials within easy reach of children.
And one more important point: it is better to prepare the mixture exactly the amount that fits into the fuel tank of your brushcutter. It is undesirable to leave the remains of the mixture.
What gasoline can be poured into the trimmer?
Before determining which gasoline can be put into the trimmer, it is necessary to define some of the concepts used.
- Trim tabs can be with four-stroke or two-stroke engines. Four-stroke trimmers are the most powerful and complex in design; the lubrication of parts of its engine is carried out by an oil pump. The engine runs on pure gasoline. For two-stroke units. simpler ones. preparation of a fuel mixture consisting of gasoline and oil is required. It is due to the amount of oil in the fuel that the rubbing parts in the cylinder of this engine are lubricated.
- To prepare the mixture, you need a certain grade of gasoline AI-95 or AI-92. The brand of gasoline depends on its ignition speed. octane number. The lower this indicator, the faster gasoline burns and the greater its consumption.
Many models of petrol cutters have two-stroke engines running mainly on AI-92 gasoline. The fuel for them must be mixed independently. It is better to pour gasoline of the brand specified for it by the manufacturer into the brushcutter, otherwise the trimmer will fail faster. For example, with AI-95 gasoline, the engine will quickly overheat, and when choosing AI-80, the fuel mixture turns out to be of very low quality, therefore the engine operation will be unstable and with low power.
In addition to choosing a brand of gasoline, when preparing a fuel mixture for brushcutters, you need to use a special oil designed specifically for two-stroke engines. Semi-synthetic and synthetic oils are well suited for benzos. Semi-synthetic oils are in the middle price range, they are suitable for such equipment from any manufacturer, they lubricate the necessary engine elements well. Synthetic oils are more expensive, but they will keep the engine running longer. In any case, when buying equipment, you should carefully read the instructions, since sometimes the manufacturer gives recommendations on the use of specific brands of oil.
If you buy Russian-made oil, then it must be marked. 2T. For a long service life of your equipment and its good condition, you never need to use oils of unknown origin.
Gasoline for petrol cutters: which one to choose and how to dilute?
For those people who have a summer cottage or a country house, very often there are difficulties with the overgrown grass on the site. As a rule, it is necessary to mow it several times per season and get rid of thickets. Currently, there is a wide range of garden and vegetable garden equipment on the market. One of these assistants can be attributed to a petrol cutter, in other words. a trimmer. For effective and long-term operation of such equipment, it is necessary to fill it with high-quality fuel or properly prepared fuel mixtures.
Features of refueling brushcutters
When the mixture is prepared and ready for use, it must be carefully poured into the fuel tank. Since gasoline is a toxic liquid, safety precautions must be observed when working with it. Work must be carried out in calm weather and away from strangers. And also to pour fuel into the tank, you need to use a watering can or funnel with which you previously diluted the mixture. Otherwise, the mixture may spill, go unnoticed, and ignite when the engine heats up.
The fuel bank itself must be cleaned of external contaminants and only then unscrew its cap in order to refuel with the prepared fuel. Once the fuel has been filled, the tank should not be left open, as insects or soil can enter it and clog the fuel filter. Fuel must be poured into the tank up to the indicated mark or less, and then refilled during operation.
As noted above, you should not prepare the mixture more than is necessary for work, it is better to cook less and, if necessary, repeat the process, mixing gasoline with oil again. If there is still unused fuel left, then it must be used up within 2 weeks.
During storage, the container must be tightly closed with a lid. You need to store fuel in a cool room, out of the sun’s rays. It is worth remembering that with long-term storage of the mixture, the oil liquefies and loses its properties.
Whatever brand your equipment is, it requires careful attitude and high-quality fuel. If you follow all the recommendations and use fuel sparingly, your petrol cutter will serve you for more than one season, and the land plot will always be in perfect order, without weeds and dense thickets of grass.
How to know if you need to dilute the fuel
Before you perform the first refueling of your walk-behind tractor, you need to study the operating instructions and technical specifications. First of all, the type of engine is determined. Garden equipment can be equipped with a two-stroke or four-stroke.
If a two-stroke engine is installed in the walk-behind tractor, then petrol will need to be diluted with oil. When diluting gasoline with oil, a strict proportion specified by the engine and fuel manufacturer is adhered to.
But for a four-stroke device, it is not worth adding oil to gasoline for a walk-behind tractor. They run exclusively on pure gasoline.
It is important to correctly determine the type of engine, as using diluted gasoline for 4-stroke devices will lead to complex costly breakdown.
Is it possible to pour 92 gasoline instead of 80 into a walk-behind tractor
Gasoline of the AI-92 brand is an order of magnitude higher than the 80th. But do not experiment and refuel garden equipment with better fuel if the engine is not designed for this.
If you change the fuel abruptly, then simple models of walk-behind tractors simply will not start. Even if the equipment starts up, the use of fuel with a higher octane number will cause breakdowns:
- the main elements will quickly fail;
- the reducer stops working;
- if the walk-behind tractor starts up, then it will be necessary to change the oil seals and filters much more often;
- the need for fuel increases.
Before you start using AI-92 gasoline instead of AI-80, you should prepare the technique. There are two ways to solve the problem:
- increasing the compression ratio of the engine;
- ignition timing adjustment.
If you do not have the knowledge and skills to repair such equipment, then it is better to turn to professionals. They will solve problems accurately and accurately.
The trimmer makes it much easier to control weeds and excess grass in your garden. Using…
Types of lubrication possible for motoblocks
Oil is just as important as gasoline. The stable operation of all equipment components depends on the quality. The main purpose of lubrication is to eliminate unnecessary friction. A good product must meet several requirements:
- during burnout, a minimum of ash should be formed;
- quickly decomposes on contact;
- dissolves quickly in gasoline;
- good fluidity (relevant for engines with separate oil and gasoline supply);
- anti-corrosion, temperature, anti-wear properties.
When choosing an oil, they also pay attention to seasonality. Lubricant is:
- Summer. Has high viscosity, ensures good cultivator performance in hot weather.
- Winter product. The manufacturer marks products for winter with a conditional marking in the form of the letter “W”. The viscosity of the product is lower, which ensures comfortable work in cold weather.
- All-season type. A very popular type of oil as it can be used at any temperature.
How to properly dilute fuel for a walk-behind tractor
The main difference between a two-stroke walk-behind tractor is that it does not have a separate lubrication system. For this reason, oil is mixed with gasoline. Such an oil-gasoline mixture, when the device is operating, forms a special fog, and it, in turn, processes all the details of the walk-behind tractor.
Chainsaw oil. how to make a fuel mixture. Which oil to use to lubricate the chain Correct ratio.
Filling the walk-behind tractor with gasoline: is it necessary to add oil to gasoline
In summer cottages, garden gasoline four-stroke or two-stroke equipment is widely used, for example, walk-behind tractors. In order for the devices to help for a long time on the site, it is necessary to properly care for and operate the walk-behind tractor. Manufacturers in the operating instructions indicate the basic rules for refueling and the subtleties of using modern fuel.
Do I need to pour oil into the gearbox of the motor cultivator
The gearbox is responsible for transmitting torque in the walk-behind tractor from the motor to the wheels. Components are very susceptible to wear and therefore require constant, high-quality lubrication. Not every oil can be used for this purpose.
The ideal option for lubricating the gearbox is gear oil. It perfectly lubricates moving parts.
In order not to harm the device, you will need to clearly determine how much oil needs to be poured into the gearbox. Check the need to replenish the substance in the gearbox using a long wire. The wire is pushed into the filler hole until it stops. Then they pull it out and see which part of it is wet:
- if the wet area is 30 cm, then you do not need to add grease;
- if the rod is soaked by less than 30 cm, then the substance is added to the mark of 30 cm.
How to mix gasoline and oil
The proportions used for mixing. The classic proportion a is the ratio of 1 part grease to 4 parts gasoline. Specific values are indicated in the instructions from the manufacturer.
To assemble a mini-tractor from a walk-behind tractor with your own hands without making mistakes, you will need step-by-step instructions and.
The fuel mixture is diluted in a separate container. Containers must be dry, petrol-resistant and clean. First, it is worth pouring gasoline into the tank, and then add oil. Only after thorough mixing is the resulting composition poured into the tank of the walk-behind tractor.
For motoblocks, gasoline up to 92 octane is used. When mixing, the tank is not completely filled, leaving a gap of 2-3 cm (when mixing, the fuel expands).
How to determine what gasoline your car needs?
Today’s fuel are quite high, so the question often arises. which gasoline is better to pour 92 or 95?
Logically, it is worth pouring in the type of gasoline recommended by the car manufacturer, but in practice everything is a little different. This issue can be viewed from two perspectives. First. this is the exact adherence to the regulations, and the second. what is in reality.
Octane number. The octane number is a sign that determines the resistance of gasoline to detonation, that is, the ability to withstand self-ignition when compressed in the combustion chamber.
The highest octane number in our country is 85 gasoline. In order to bring it to the desired performance, its manufacturers use the necessary additives. There are only three types of gasoline additives. The first of them is based on metal-containing compositions, which leads to the production of leaded gasoline. But it was banned for use back in the 80s, due to too much lead emitted into the atmosphere, too harmful to the environment. The positive side of this type of fuel was improved combustion.
Ferrocene, nickel, manganese, and methylalanine were used as the basis for the second additive. The negative side of this additive was the plaque left on the pistons, spark plugs and catalyst.
The third type of additives is very widespread in our country, and is based on ether and alcohols. A positive quality of this type of fuel is the reduced level of pollution of the atmosphere around us, in addition, they will not settle inside the engine. But they also have a minus. low octane number. To raise, for example, 85 gasoline produced in our country to the level of 95, a considerable amount of these additives will be required.
Compression ratio. Modern fuel manufacturers are also increasing compression ratios in pursuit of increased power and lower fuel consumption. The more the compression ratio is increased, the less fuel consumption becomes and the power increases. But such an indicator cannot increase indefinitely, since the knock threshold will be minimal, and it will be observed even on 95 gasoline, which can lead to engine breakdown. Therefore, if the compression ratio on your car is 10 atmospheres, then 92 gasoline can be poured into it. With a compression ratio of 12 atmospheres, gasoline should be poured at least 95th. If the compression ratio exceeds 12 atm, then the gasoline to be poured must be at least 98th.
An example is the Ford Focus II car, the two-liter engine of which has a compression ratio of 10.8 atm, that is, gasoline needs to be filled in the 95th.
Here the question may arise, is it possible to somehow determine that during the acquisition of 95 gasoline it is he who is poured, and not, for example, 92? Unfortunately, this cannot be done, but car manufacturers have worried about this, and a knock sensor is installed on modern cars.
It is screwed to the engine block, and its task is to catch all vibrations and unnecessary sounds, and transmit all the signals found to the ECU. Its job is to perform fuel trim when the engine detonates while operating at low and medium speeds. If the engine speed goes closer to the red zone, the knock sensor simply will not have time to correct the speed on fuel with a low octane number.
Bottom line. If you pour 92nd gasoline instead of 95 into an ordinary civilian car, nothing terrible will happen, since its operation takes place at low and medium speeds. But if you need to leave the city, where the revolutions will be much higher, it is better to fill in gasoline with a high octane number.
What gasoline should be used for 2-stroke technology
My advice to you. never listen to “Petrovich” or “Mikhalych” from a nearby garage, because he worked for 10 years at Kamaz. For you, the most important and authoritative adviser should be the instruction manual, which is attached absolutely with every chainsaw or brushcutter. Any instruction “black on white” indicates the type of fuel that must be poured into your vehicle.
And therefore, whatever “Petrovich” and “Mikhalych” tells you, the manufacturers of equipment probably know better than them what gasoline their saws and scythes are designed for. So don’t be lazy, get out the instructions and read. On my own I will add that most two-stroke vehicles are designed for the A-92 gasoline brand, but there are some models for which the manufacturer recommends using the 95th gasoline.
Once again, I strongly recommend not to play the guessing game. but look at the operating instructions, since the use of fuel that is not intended for the operation of your equipment can lead to overheating and various expensive breakdowns.
What gasoline and how much oil should be poured into
brushcutters and chainsaws
Guide For Mixing 2 Stroke Fuel For 52cc Petrol Brush Cutter, Grass Line Trimmer
The mechanic of the Tekhprokat company answers
This is one of the most common questions from my clients, so let’s take a closer look at this topic. For simplicity, we will split this question into two sections: what gasoline should be filled in and how much 2-stroke oil should be added.
How much 2-stroke oil is needed for 1 liter of gasoline
Let’s immediately understand that if we are talking about oil in a conversation about 2-stroke technology, then this is an exclusively special oil that is added to the fuel. No other oil such as 10W-40, 5W-30, etc. IS USED in two-stroke engines. Failure to comply with this condition is guaranteed to lead to engine breakdown with a complete replacement of the piston group.
Now let’s figure out what kind of oil to pour and in what proportion to knead it.
If your equipment is under warranty service, then there is nothing special to think about. Pour oil from the manufacturer of which you have the technician.
If you have a Sadko chainsaw, pour their original oil, if GoodLuck, pour Goodluck two-stroke oil, etc., since if you do not comply with this requirement, you will simply be denied warranty service in the event of a breakdown of equipment.
Now let’s talk about the proportions of oil and fuel. As in the previous section, the main criterion for you should be the instruction manual, where the manufacturer indicates clear proportions of the mixture. For each brand of chainsaws or brushcutters, the proportions may be different, since the equipment is designed for different working conditions and loads. Therefore, follow the recommendations of the equipment manufacturer.
If you use oils of the wrong brand as your equipment, then you should mix the fuel mixture based on the recommendations of the oil manufacturer, as a rule, the proportions are indicated on the oil can.
I also want to focus on specific numbers, since users often misunderstand the numbers. For example, if the manufacturer indicates that oil and fuel must be mixed in a ratio of 1:50, then this means that 1 liter of oil must be added to 50 liters of fuel, that is, 20 ml must be poured into 1 liter of gasoline. oil, because very often a misunderstanding of these proportions leads to the fact that 1 liter. gasoline is poured 50 ml. oil, which leads to the formation of very strong carbon deposits, smoke and “throwing” the candle.
For those who are not math friendly:
1:50 (for 1 liter of fuel. 20 ml of oil)
1:35 (for 1 liter of fuel. 30 ml of oil)
1:30 (for 1 liter of fuel. 35 ml of oil)
1:25 (for 1 liter of fuel. 40 ml of oil)
Conclusion: always follow the recommendations of your manufacturer regarding the brand of fuel and the proportions of the mixture, if you are not sure about something. contact the official representative of your brand (phones are always indicated on the warranty card).
Remember that the fulfillment of these conditions is the key to a long and stable operation of your equipment.
Should I upgrade to 92nd? Experiment ZR
Russia is one of the largest oil-producing countries, but our gasoline do not fluctuate with, and premium AI-98 and AI-100 have jumped far beyond the psychological boundary of 50 rubles per liter. And the eternal dispute about the optimal choice of gasoline flared up with renewed vigor.
Many suddenly remembered that their cars can be refueled “in ninety-second”. and for the sake of economy switched to it.
Others are still convinced that the expensive “ninety-fifth” and even more so “ninety-eighth” provide the car with the best dynamics. And with a quiet ride on high-octane gasoline, they say, the consumption falls. and it will come out even cheaper than on the “ninety-second”!
Do similar theories work for cars with modern, but not highly accelerated engines??
We took two editorial Vesta. Sedan with a 1.6-liter engine producing 106 hp. and the AMT robot symbolizes the choice of a person who is not in a hurry: you don’t need a lot of power, the box switches itself. that’s nice. The SW Cross station wagon with a 1.8-liter 122-horsepower engine and a manual transmission is sure to be preferred by those who want to always have a “headroom under the pedal”.
What is what
In each Vesta, in turn, we fill in Lukoil Ecto gasoline of different grades: first AI-92, then AI-95, and for dessert. elite AI-100. The instruction manual requires observing only the lower bar. this is AI-92 gasoline. No upper bound.
We will compare not only fuel consumption, but also dynamics, and then drive the cars to a dynamometer. in order to determine the maximum power and torque on the wheels using instrumental measurements.
The method for measuring fuel consumption is extremely simple. We burn out the remains of gasoline in the tank until the engine stops and fill in ten liters of test fuel. We develop it until the engine stalls again, and record the mileage traveled. By simple recalculation, we get the average fuel consumption.
Arrivals were carried out at the same time in similar weather. To minimize the measurement error, the canisters were filled on one dispenser (from the corresponding pistols, of course) at the same gas station.
The driving mode is a quiet highway. We keep 110 km / h evenly. Each car is driven by the same driver throughout the test. to avoid scattering results due to “change of leg”.
With a professional measuring complex VBOX, we first measured the acceleration time to hundreds. The station wagon with “ninety-second” gasoline in the tank gained 100 km / h in 12.0 seconds. On “ninety-fifth” gasoline, he accelerated more fun: 11.3 seconds. Maybe AI-100 will breathe even more power into the motor? Alas. the same 11.3 seconds. Like a carbon copy. history with consumption, only seconds instead of liters.
Sedan? Long 14.8 seconds to the first hundred on “ninety-second” gasoline. ardent greetings from the AMT robot with its rubber switches. On the AI-95, the 1.6 engine cheered up a little: minus six tenths of a second.
And finally, the “hundredth” gasoline showed itself, allowing it to run out of fourteen seconds and improving the result on the “ninety-second” by almost a second.
Now. transitional regimes, or elasticity. Acceleration from 60 to 100 km / h in fourth gear and from 80 to 120 km / h in fifth.
The elasticity of the “cross” Vesta in the transition from “ninety-second” to “ninety-fifth” improved slightly. The gain is a few hundredths in different modes, whether it is acceleration from 60 to 100 km / h in fourth gear or from 80 to 120 km / h in fifth. The most noticeable difference was recorded during acceleration in fifth gear from 60 to 100 km / h. more than one and a half seconds were won.
AI-100 gave nothing even here. Several hundredths of a second in all measurements of the elasticity of SW are not even crumbs, but fleas. The sedan did not at all demonstrate any advantage in elasticity on different fuels. over, on the “hundredth” gasoline, it even worsened!
How so? Indeed, in theory, the opposite is true!
How to explain such strange results? After all, the higher the octane number, the, in theory, the better the economy and power characteristics. That’s how it is, but not always.
The fact is that the external speed characteristics of the engines are removed by the plant on AI-95 gasoline. they are exactly what are stated in the passport data. Ten or fifteen years ago, even in cars with simple eight-valve engines, AVTOVAZ allowed only “ninety-fifth” to be injected. And it is this gasoline that is still recommended for Grants, Kalina, Priora and Niva!
And motors are simply not calibrated for more expensive AI-98 and AI-100 gasolines. The control unit is sharpened for engine operation at a maximum of “ninety-fifth” and does not adapt to higher-octane gasolines. Consequently, the power does not grow either. Of course, in some narrow transient modes, the “hundredth” gasoline is able to give a certain increase (for example, in the acceleration efficiency from 80 to 120 km / h), but it is not so significant and will be washed out against the background of other indicators.
Lada Vesta SW Cross 1.8 MT
Power 122hp at 5900 rpm
Torque 170Nm @ 3700rpm
Acceleration 0-100 km / h 11.2 s
Maximum speed 180 km / h
Fuel consumption: urban / suburban / combined cycle 10.7 / 6.4 / 7.9 l / 100 km
Recommended gasoline minimum AI-92
At the stand
All the dots above the “i” have placed the measurements on the dyno. Inzhkar has kindly provided the latest professional Dynomax dynamometer for our testing. Any measurements can be taken on it, and thanks to the powerful air blowing system, the test does not turn into torture for the car’s cooling system.
We spent more than one hour “on the drums” and received graphs of the power of both engines on different gasoline. On the AI-92 and AI-95, the cars produced results very close to the passport values: the Vesta 1.6 sedan showed 103.5 and 103.6 hp. respectively (106 hp declared), and the Vesta SW Cross 1.8 wagon produced 119.3 and 119.7 hp. (declared 122 hp).
Curiously, the curves of power and torque on the “ninety-second” were even a little smoother. And at the “hundredth” power. did not reach the parameters declared by the manufacturer 9-10 “horses”! Now it’s clear why the dynamics have barely changed.
Lada Vesta 1.6 AMT
Power 106 HP at 5800 rpm
Torque 148 Nm at 4200 rpm
Acceleration 0-100 km / h 14.1 s
Maximum speed 182 km / h
Fuel consumption: urban / suburban / combined cycle 9.3 / 5.5 / 6.9 l / 100 km
Recommended gasoline minimum AI-92
How much better is a gas braid than an electric one and why?
The big advantage of a brushcutter over an electric one. autonomy of work, that is, you can mow anywhere and everywhere, there is no rigid binding to the place of inclusion. This makes it possible to mow far from home, in the field, forest, in large areas. Gasoline mowing equipment is very hardy and has a long service life. Its gasoline engine is designed for frequent and heavy loads, it does not overheat enough to take breaks every 10-15 minutes, as required by an inexpensive electric scooter. But still, if the brushcutter does not belong to the professional class, one must also remember to take breaks between the tanks. If we talk about cutting equipment, then almost all gasoline scythes make it possible to cut weeds with a knife and cut young wood growth with a disc. The same cannot be said about electrical counterparts. Even with the same engine power, the mowing quality, speed and result will be much more efficient when compared with electric mowers.
All of the above advantages of a brushcutter are explained by one thing. the presence of a gasoline engine. It provides power and mobility, and also has a fairly wide range of technical characteristics, design features.
The main difference between petrol braids. in the type of engines:
Which engine is better for brushcutters, which type of motor is easier and more comfortable to work with, which one is more economical and profitable, you will learn from this article. I will tell you about the design, operation and operation of a two-stroke and four-stroke engine in detail, which will make it possible to make the right choice of the type of engine for your home or summer cottage.
Motor type for brushcutters (2-stroke or 4-stroke): Which is better?
- Why a gas scythe is better than an electric one?
- How a 2-stroke engine works?
- The principle of operation of a 4-stroke engine
- Advantages and disadvantages of both types of engines
expert of the category: “Everything for the garden and vegetable garden”
The principle of operation of a 2-stroke engine
The essence of the work of any internal combustion engine is that it repeats the same type of cycles. Each of them consists in the fact that fuel enters the cylinder, and then is squeezed by the movement of the piston. During compression, the fuel turns into gas, enters the gas chamber, and expands. At the same time, a large amount of thermal energy is released, it turns into mechanical energy and turns the crankshaft a full revolution.
That’s the whole cycle. The movement of the piston plays a significant role in it. up and down, because the compression ratio depends on it. This piston stroke is called stroke.
For two-stroke engines, the piston makes two strokes (two strokes). A fuel mixture (gasoline mixed with oil) is used as fuel. The mixture is prepared before refueling, in such a mixed form it enters the combustion chamber, which gives a very specific smoke when a two-stroke engine is operating. It just burns oil. But in such an engine, there is no need to fill in oil separately for 2 cycles, the mechanisms of the brushcutters already receive it directly from the combustion chamber.