## Consumption in modern machines

or less expensive cars have on-board computers, which indicate the consumption of gasoline from the moment of the start of movement to the current one. You can also see the consumption over the entire lifetime of the machine. Technologies like these remove questions about gas mileage.

However, even cars without an on-board computer have special OBD II connectors. You can connect an OBD II adapter to them, which will transmit information about the state of the car’s systems to a phone or tablet via Wi-Fi or Bluetooth. It indicates engine speed, vehicle speed, air conditioning pressure, and fuel consumption per 100 km. Such a device is inexpensive. about 500 rubles, although there are models at a very high price. If you are not satisfied with the indicated methods of checking the consumption, then try to buy an OBD adapter and observe the consumption directly from your mobile phone. Almost all cars manufactured after 1990 are equipped with similar connectors.

## Calculation errors

Naturally, this calculation is very rough, but it gives an approximately correct idea of the fuel consumption of a car. After all, you do not always have to drive in the city, sometimes the driver goes on the highway, and when driving on a flat road and in high gear, fuel consumption is reduced. Even the technical specifications indicate the consumption of gasoline when driving in the city or on the highway.

Therefore, it is advisable to calculate the flow rate twice. The second time a similar operation must be done with the exit to the track. Most often it turns out that outside the city, fuel consumption is reduced by 2 liters.

## How to calculate fuel consumption per 100 km? Calculation examples

Many car owners do not know how to calculate fuel consumption per 100 km. Consequently, they do not know how much gasoline or diesel fuel their car consumes. What is written in the technical specifications is often not true, and if the parameters indicate a consumption of about 8 liters per 100 km, then this does NOT mean that the car consumes just that much gasoline. And in general, on VAZ cars, fuel consumption can be anything. In principle, this applies to any cars, because this parameter is largely determined by the driving style, the quality of gasoline filling and even the oil used. The fact is that some oils are able to reduce the friction force between engine parts, from which gasoline consumption drops, but now NOT about this.

## Second calculation method

You can also do it in another way. When the “petrol station” light comes on, fill up exactly 10 liters of fuel and drive until the “petrol station” starts flashing again. After the start of flashing, look at the distance traveled. If the meter shows 80 km, for example, the calculation will look like this:

10/80100 = 12.5.

This means that the engine consumes 12.5 liters per 100 kilometers.

## How to calculate fuel consumption per 100 km?

In fact, everything is simple. No complicated formulas needed. All you need is a calculator. The bottom line is to detect the distance traveled on gasoline from refueling to refueling. So, it proceeds as follows:

- DO NOT refuel until the “gas station” sensor on the dashboard lights up. This usually means that there is still about 10 liters of gas left in the tank.
- Now we go to the nearest gas station and fill up a full tank of fuel. Be sure to fill in such gasoline as required by the car manufacturer. This is indicated in the technical specifications.
- We receive a receipt at the gas station and see how much fuel we have filled. Write down this value or just save the receipt. Now we reset the mileage counter.
- We go about our business. We need to use up fuel until the refueling light comes on again.

Now that we have spent all the gasoline, we can calculate the real fuel consumption of the car. We have all the necessary parameters. The fuel consumption formula will look like this:

Flow = X 100 / Y.

- X is the volume of fuel filling. It is indicated on the check.
- Y is the distance traveled that you see in front of you on the dashboard (if you remember, when refueling, we reset the mileage counter).

Here’s a simple example for simplicity. Let’s say that after the gas station light comes on, we have refueled 40 liters of fuel. I reset the odometer, the trainers on business and again saw the “gas station” light. Now we look at the counter and see that we, for example, have driven 500 km. This means that 40 liters of gasoline is consumed for 500 kilometers. If 500 is divided by 40, then we get the gas mileage per kilometer. In this case, it will be 0.08 liters per kilometer. But we need to know how to calculate the fuel consumption per 100 km, which means that the resulting value must be multiplied by 100. In total, 8 liters will be released. this is how much gasoline in this example will be consumed by the car.

Now you know how to calculate fuel consumption per 100 km. The above methods let you know how gluttonous your car is. Of course, they will not give accurate data on fuel consumption, but you can determine the “appetite” of the engine.

## How Gasoline or Diesel Consumption Calculators Work?

If you do not have a calculator at hand and you are NOT good at simple math or you do not want to calculate everything in your head, then you can also use a fuel calculator. On the Internet, you will find many different calculators for calculating the consumption of gasoline or diesel fuel. To do this, enter the query “calculator for calculating fuel consumption” in the search box of any search engine. In response to your request, you will receive a huge number of links to various online calculators that help you calculate fuel consumption.

Most online online calculators will help you calculate not only the average fuel consumption, but also the cost of a trip over any distance. Including you can calculate the cost of 1 kilometer of the way.

## Fuel consumption calculator: Calculate fuel consumption. How is the cost of fuel calculated per 1 kilometer of track??

If you know exactly how much your car consumes (by calculating the consumption using the formula above), you can easily calculate the cost of fuel per 1 kilometer of your journey. To do this, you must know the cost of 1 liter of gasoline or diesel fuel. Then use the following formula:

Average fuel consumption x fuel price: 100 = cost per kilometer

Let’s stick with our example for a visual calculation using this formula: the car consumes an average of 9.4 l / 100 km. With a fuel cost of 40 rubles per 1 liter, we get the following costs:

9.4 l / 100 km x 40 rubles. / L 100 = 3.76 rubles. / km

For those who are wondering how much 100 kilometers will cost, remove the division by 100 (100) from the above formula. In total, multiplying the average fuel consumption by the cost of one liter of fuel, you will get the amount spent per 100 kilometers. Here’s a sample calculation:

9.4 l / 100 km x 40 rubles. / L = 376 rubles. / 100 km

## My car is using too much fuel. it’s broken?

To understand how much your car actually consumes, you must compare the actual consumption of your car with the technical data of the automaker. Although usually the factory specification in fuel consumption has nothing to do with the real figures of the car’s economy. However, according to the automaker, you can roughly calculate how much fuel your car actually uses. The fact is that, on average, real fuel consumption is 20-30% higher than what automakers say in the technical specifications for their cars.

So, comparing the real average fuel consumption of your car (like you, for example, calculated using the above formula) with the Official data of the automaker, Consider this 20-30% difference. If the real fuel consumption is 40-50% or more higher, then it is worth looking for the cause of the overspending, which can be associated with both breakdowns and your improper driving style. It is also possible that poor-quality fuel became a prerequisite for overspending.

However, if your car’s fuel consumption has dramatically increased despite the fact that you are driving on the same roads and driving style as before, then there is a high probability that there is a malfunction in the car. The main causes of increased fuel consumption associated with malfunctions are:

- Problems with the engine control unit
- Clogged nozzles, worn spark plugs, and clogged air filter
- Damaged accessories such as the air conditioner
- Defective bearings or brakes

But these are not all the reasons for the increased fuel consumption. You can read more about this here.

## Here’s how you can calculate how much fuel your car is using.

If you want to know exactly how much gasoline or diesel fuel your car consumes, you can use the fuel consumption calculators on the Internet (fortunately there are a lot of them today) or just calculate the fuel consumption using a simple formula yourself. First of all, you must fill the fuel tank of your car completely. Next, you should reset the daily mileage on the dashboard. If you do not know how to do this, find the instructions in the manual for the car or look for information on the Web.

As a rule, in many cars the button for resetting the daily mileage (Do not confuse with the main mileage counter. vehicle mileage, which cannot be reset to zero) is located directly under the dashboard or right on it. In some vehicles, the daily mileage reset button is located on the steering column lever. There are also cars where, in order to reset the daily mileage of a car, you must reset the daily odometer readings through the car settings menu.

So, resetting the daily mileage counter, you have to drive several hundred kilometers to find out exactly how much fuel your car actually consumes. By the way, for this you need to burn a full tank of fuel. To accurately calculate the real fuel consumption, you need to drive 200-300 kilometers.

Council. Drive the car as you would in everyday life. For example, Not Just Driving on the Freeway. This will NOT calculate the actual fuel consumption, since any car when driving on expressways outside the city consumes much less fuel than in the city. Therefore, your test route for measuring fuel should include both city and highway driving. If you most often operate a car in the city, then on a test route, use the car 60-70 percent of the time in city traffic. In 30-40 percent of cases, you can use the car on the highway.

After you have driven several hundred kilometers, return to the gas station and fill the fuel tank completely again. In order to calculate the real fuel consumption (and not the one that shows the on-board computer of your car, the values of which are far from reality), you must know how much fuel was consumed during your test drive and the number of kilometers on the daily odometer, which you should have previously were reset to zero. Here is the formula to calculate:

The number of liters of fuel you filled: how much you drove x 100 = fuel consumption in l / 100 km

Here are two examples for calculating fuel consumption using this formula:

For example, let’s say that we filled a full tank with a volume of 50 liters and drove 517 km. Further, when the light on the tidy turned on, warning of a low fuel level, we again came to the gas station for refueling. Taking into account the small amount of fuel remaining in the tank, we again refueled the car to a full tank. In total, the tank included 48.7 liters of fuel. Now, knowing how much fuel was consumed by the car (48.7 liters) and the mileage on the daily odometer (517 kilometers), previously reset to zero before starting measurements, we can use the above formula to calculate the real fuel consumption of our car.

Here is the final calculation for our example:

48.7 L: 517 km x 100 = 9.4 L / 100 km

In the second example, Let’s calculate the fuel consumption of a car with a low mileage. That is, during the mileage, not until the moment when the fuel in the tank is already running out. Suppose that you have filled in 50 liters of fuel (full tank) and reset the daily mileage of the car, drove 300 km. Then we stopped again at the gas station and filled the car to a full tank. In total, the tank included 28.2 liters. Now, knowing the mileage (300 kilometers) and the amount of fuel consumed for this mileage, using the above formula, you can calculate the exact fuel consumption of your car. Here’s the calculation:

28.2 l 300 km x 100 = 9.4 l / 100 km

As you can see, with a lower mileage, we got the same fuel consumption as with a higher one. This is why you don’t have to burn the entire fuel tank to accurately measure your vehicle’s fuel consumption. To do this, it is enough to drive only a few hundred kilometers.

## How to reduce fuel consumption?

If your vehicle is consuming too much fuel, this does not always mean that there is a defect. Did you know that your driving style can seriously affect your fuel consumption? Here are the basic rules for an economical driving style:

1) Do not engage a higher gear ahead of time.

2) Try not to drive a car with a full gas pedal.

3) Try to coast more often and press the gas pedal NOT constantly.

4) Brakes more often by the engine, including a lower gear. Before traffic lights, release the gas in advance so that the car will coast, smoothly Losing speed.

5) Drive on the highway as slowly as possible. At 160 km / h, the car needs two-thirds more fuel than when traveling at 100 km / h.

6) turn off the engine more often. Even with a very short waiting time (approx. 20 seconds), it makes sense to switch off the motor. Modern cars with a stop / start system (automatic engine shutdown) automatically turn off the engine when stopping and turn on the engine when starting to move.

Besides driving, there are many other factors that can affect fuel consumption. These include:

- Roof rack:

Even without a load, a roof rack can increase fuel consumption by up to 20 percent due to the increased aerodynamic drag.

- Tire pressure:

Tire pressures that are too low will have a negative effect on fuel consumption. The air pressure should be checked regularly at a petrol station (or before driving to your home) and compared with the data recommended by the car manufacturer (you can find out the correct tire pressure in the vehicle owner’s manual, on the driver’s center door pillar or in the fuel tank cap). Special tires with optimized rolling resistance can further reduce consumption.

- Engine oil:

Specialty engine oils (0W-30 or 5W-20) are available that can reduce internal friction and therefore also lower fuel consumption, however these oils usually cost significantly more than conventional engine lubricants.

- Vehicle equipment:

Heating, air conditioning or heated seats make driving more comfortable but increase fuel consumption. In particular, air conditioning can increase fuel consumption by several liters per 100 kilometers.

### In practical aspects of fuel consumption

Of course, there are some differences between theoretical calculations and practice. Fuel consumption is influenced not only by the maximum speed, but also by the power output and specific fuel consumption.

Bad equipment and impressive trucks show more fuel consumption than one whose engine is regulated. Excess flow can also be detected during Special Full Load Test. For example, a car weighing one and a half tons can show a flow rate of 5 to 6 liters per hour, although on average this is 3 liters per hour.

It should also be noted that under real conditions the power supply has a lower load than during test tests. To determine the fuel consumption for cancellation, a series of test measurements is required.

As an example, the conditions of a Komatsu BX50 loader (transmission. FD30T-16, lifting capacity. 3000 kg) are given. Type of working operations. Unloading of trucks, as well as stowage of goods in wagons. The work is done within 9 hours daily. Fuel consumption. 2.5 liters per hour.

With power supply 4D92E, shift time 24 hours, fuel consumption for household appliances:

With an eight-hour shift, the loading speed of the loader is 1500 kg. 2.2 liters, and a carrying capacity of 1800 kilograms. Up to 2.95 liters per hour.

### How to determine the consumption rate in 1 hour?

It is calculated as follows:

Q = Nq / (1000Rk1), where:

- N. Power supply;
- Q. Loader specific fuel consumption indicator;
- R. Fuel density (diesel). Usually taken in an amount of 0.85 kg / dm3;
- K1. It is the percentage of running time at maximum crankshaft speed.

Power output and specific fuel consumption are indicated in the operating instructions. Data is entered into it in the form of a graph. It was built by the manufacturer’s specialists. The basis for this is the test results in different modes. In practice, it is very easy to achieve the maximum transmission speed. Squeeze out the accelerator fully. As a result, the loader accelerates, overcomes the rise with the load, raises it to the maximum allowable height, and all this, remember, at maximum speed. Of course, in this mode, the bootloader will only work part of the changes. Therefore, it is necessary to use the coefficient marked k1: it characterizes the operation at maximum speed. This can be called an individual indicator of the specificity of the bootloader.

## Gasoline consumption rates in trim tabs

Let’s say a Husqvarna 122C, which has a 0.8 liter two-stroke engine, uses 630 g / kWh. The fuel consumption of the STIHL FS 50 CE lawn mowers is 20 percent lower. In addition, it emits 70 percent less harmful emissions into the environment than models in which a two-stroke engine.

Further there will be tips that experts give users. They relate to the selection and use of the fuel mixture

Experts advise buying mainly AI-92 gasoline for trimmers. To make a mixture with the correct oil to gasoline ratio, you need to maintain a 1:30 balance. Violation of this ratio leads to engine damage.

Store the mixture in containers, which must be clean and safe. Since the fuel mixture sometimes settles, it is imperative to shake the canister before refueling.

It makes no sense to fill in more gasoline than you can use up. Better then despicable than cleaning the tank.

IMPORTANT! A lawn mower will last a long time and will be economical in fuel consumption for a long time for someone who strictly adheres to the simple rules for storing the trimmer.

A gasoline engine is a complex design, and then requires constant care. That is why, before starting work, it is necessary to study the rules for operating the device and follow the recommendations developed by the manufacturer.

Always keep the inside of the case clean. So that the caustic juice from the grass does NOT corrode any parts of the device, experts recommend that after the work is done, clean the machine.

Before buying a mower, you need to determine the place where it will be stored. In this case, it is necessary to take into account what dimensions are in the unit. It makes sense to take a closer look at the model in which the handle is folded. In this case, in any storage, she will find a place. That is, for storing the device, this option is just perfect.

### Calculation example

Suppose a diesel forklift was leased to load wagons and unload wagons. He works the entire shift (8 hours), without overcoming inclines and without using the maximum fork height, since the platforms he serves are only 1500-2000 mm high. The maximum speed of the power unit is only used when the unit is accelerating to cover the distance between the loading and unloading areas. This operation takes about 30% of the working time.

But that might be the case. The company works around the clock. But the shipment of materials (products) for a given time is carried out only 2 times in 2 hours. Loader loading times with minimum to medium intensity are maintained.

## Gasoline consumption rate per trimmer. How the trimmer uses fuel

A lawn mower is a very simple device. There is nothing special about it. And therefore, many people buy it for their needs, since everyone can learn how to work with it, and quite quickly.

Anyone who has relied on a petrol trimmer should know that fuel consumption is one of the most important characteristics for him. And so there is a simple explanation. First of all, the device must perform its functions for a long time so that for a long time there is no need to refuel. It’s always convenient.

IMPORTANT! However, in this case, of course, the fuel tank will be large. As a result, its overall construction becomes heavy. And this will make it difficult to work. Can you find a wise solution in this situation? The problem can be solved by reducing fuel consumption.

Next, we will talk about what it can be, what determines the fuel consumption of the trimmer, and also advise which gasoline is better to choose for work.

## How to Calculate Fuel Consumption Trimmers

Accordingly, the coefficient characterizing the ratio of operating time to load (maximum / minimum) is lower in the second case. You can accurately determine its value by measuring the length of time it takes a forklift truck to overcome the sidewalk (road) and lift the maximum load. Summing up, we get the operating time during which the unit is exposed to the greatest loads. And it is this time that must be subtracted from the duration of the (total) one change.

Required ratio. This is the ratio of operating time with minimum and maximum load (70% and 30%, respectively). Therefore, if the loader was used with a maximum load of 30%, then the coefficient value is determined by dividing 70% by 30% (i.E. E value is 2.3).

For example, the famous Komatsu AX50 forklift model is equipped with a 4D92E power supply. The capacity is 33.8 liters. From. If 30% of all changes occur at maximum speed, the fuel consumption during will be: 33.8 × 202 / (1000 × 0.85 × 2.3) = 3.49 liters.

### Fuel and lubricants and waybill

Fuels and lubricants (fuels and lubricants) are understood not only as fuel, as is gasoline, diesel or gas, but various lubricants and water (brake, cooling). Fuels and lubricants are any materials that are often used in the maintenance of vehicles.

For the write-off of fuel and lubricants in the company of the Ministry of Transport of the Russian Federation, special standards have been developed, with all this, the Tax Code of the Russian Federation does not prohibit the use of the standards of its development. In the latter case, they will take into account different decreasing and increasing factors associated with the season, weather and principles of factors when the operation of vehicles takes place.

The calculation of fuels and lubricants (under which in our article it will be assumed specifically fuel) in the organization is carried out using the primary accounting document. a travel letter. It is the waybills that contain information about the time of departure and return of transport to the starting point of the route, rates of fuel consumption and other consumables, Detailed characteristics of the cargo, as well as data on the purpose of the trip and other information that are related to it.