Going on a long trip, or when planning a family budget, any driver wonders how to calculate gas mileage. Let's look at this topic in detail.
Fuel consumption rates are set individually for different car brands and depend on many nuances, for example, on the technical condition of the car. In order to calculate fuel consumption rates as accurately as possible, the following details must be considered:
1. If the outdoor temperature is above 30 degrees below zero, do not warm the car for more than two minutes.
2. Check the air filter, and if a malfunction is detected, replace it immediately. When your air filter is used up, the fuel consumption rate increases several times.
3. Do not accelerate or sharply reduce the speed of the car without the need. Observe the optimum speed, for general-purpose cars it will be 80 - 90 km / h.
4. Measure the content of CO (carbon monoxide) at idle at a speed of 2500 rpm. If the level of CO is seriously elevated, you should consult a specialist.
5. Many will be surprised, but the fuel consumption rate depends on the correct and timely gear shifting. To reduce the acceleration time, drivers very often change their last gears ahead of time, which significantly affects the degree of wear of the gearbox and the gas mileage.
6. Watch pressure in wheels. At pressures below normal, gas mileage will increase.
7. If the car is on an inclined surface, do not hold it with the accelerator pedal and clutch. The hand brake is much safer and more useful for the technical condition of the machine.
8. Open windows at speeds above 55 km / h also affect fuel consumption. The more the windows are open and the higher the speed, the more gas will be consumed.
We examined the details that can affect the amount of gasoline consumed, now let's talk about the methods used to calculate the fuel consumption rate, there are two of them:
1. Using the on-board computer.
Progress does not stand still, and thanks to it, most cars are currently equipped with on-board computers. On them, drivers can easily see the exact distance traveled, and the remaining amount of gasoline, and the amount of gasoline that was consumed, and, of course, the fuel consumption rate. But these indicators can be trusted if the car is fully technically sound, and all the above nuances are taken into account.
2. Using a simple algorithm.
Is your car in excellent condition? Then follow these simple instructions:
- Fill the fuel tank completely.
- Reset the counter on the speedometer to show how far the machine has traveled.
- Given all the details, and preferably on a level road, use up a full tank of gasoline.
- Next, divide the number of kilometers traveled by the number of liters of gasoline in the tank. The resulting number will be equal to the rate of fuel consumption.
If your path will run along hilly terrain, consider the following errors:
1. Lower mountains (altitude - 250 - 850 meters) - an error of 5%.
2. Midlands (altitude - 850 - 2000 meters) - an error of 10%.
3. Highlands (altitude - 2000 - 3000 meters) - error of 15%.
4. High highlands (altitude above 3000 meters) - an error of 20%.
On city roads with interference, traffic jams and traffic lights, it is advisable to take into account the following errors:
1. The population of the city is up to 250 thousand people - an error of up to 10%.
2. The population of the city is up to 1 million people - an error of up to 15%.
3. The population of the city is up to 3 million people - an error of up to 20%.
4. The population of the city over 3 million people - an error of up to 25%.
The calculation of the fuel consumption rate should not be neglected, since this information will greatly help when planning any trip or family budget.