What is gas (fuel)?

Fuels are all substances that give off heat and light energy when burned.

Thermal energy is obtained from various fuels by a chemical process called oxidation or combustion. In most cases, oxidation is the coupling of combustible matter with oxygen. Combustible substances are otherwise organic substances, i.e. hydrocarbons. Thus they contain a large proportion of carbon and hydrogen. Consequently, burning produces a large amount of carbon dioxide and water vapor and depending on the composition of the fuel and other compounds.

How to calculate gas cost mileage

The first thing you calculate here is the mileage, or miles per gallon (mpg) that your car consumes. You can do this yourself with simple math. Mpg varies from things like driving style. Suppose you have a console in your car. In that case, you can set the trip odometer to zero by pressing the button below the odometer. After setting or noting the trip odometer, usually, drive until it is time to refuel and record the odometer or miles on the trip odometer when you recharge it. Subtract the first mileage from the second to get the number of kilometers driven. Or if you reset the trip odometer the last time you refueled, this value is the number of miles you have driven with that tank full.

Divide that number of miles by the number of gallons you just bought on your second visit to the gas station, and you will get your miles per gallon. Remember, your mileage will vary depending on whether you spend more time on the highway or in the city. Driving in the city means spending a lot of time stopping and starting, which uses more gas, so your mileage will be lower.

How to calculate gas for a trip

Take Miles per Gallon of the entire trip and divide by your miles per gallon to get the number of gallons of gas you need to travel. Then multiply that by the current fuel price. And the result is the price of fuel you need for the entire trip.

Adjust tires

Research has shown that about 25% of car fuel consumption and 24% of CO2 emissions in cars are related to tire conditions.

You can also improve your gas mileage by up to 0.6% on average and up to 3% by maintaining proper tire pressure. Under-inflated tires can reduce fuel consumption by approximately 0.2% for every 1 psi drop in the average pressure of all tires.

Use the correct motor oil

Running an engine on old, used oil will cause a reduction in fuel efficiency. Also, when the oil is used up, the engine heats up more and works harder. Older oil lubricates certain parts of the engine-less, and the engine heats up due to higher iron friction. This weakens engine performance, such as horsepower.

Factors that determine the fuel price

Nowadays, many things affect the price of fuel, which changes from day to day.

The retail price of gasoline includes four main components:

  • The cost of crude oil
  • Refining costs and profits
  • Distribution and marketing costs and profits
  • Taxes

Best fuel economy cars

The most efficient cars in terms of fuel consumption in 2021 are:

  • Honda Insight
  • Toyota Prius
  • Hyundai Ioniq
  • Toyota Corolla
  • Hyundai Elantra
  • Honda Accord.
  • Toyota Camry.
  • Hyundai Sonata.
  • Chevrolet Spark.
  • Volkswagen Jetta.
  • Kia Forte.
  • Splitting the gas cost

Gas price increase


EcoDrive is an independent fuel consumption recording and monitoring system that can improve fuel efficiency. The system is implemented on an integrated platform that can be easily installed in normal vehicles. We model various vehicle forces as instant fuel economy functions and models are evaluated using 10,000 lane miles of 12 vehicles. EcoDrive is installed in a regular vehicle and has been evaluated based on over 100 miles of city and highway driving and has been shown to improve fuel efficiency compared to the vehicle and cruise control systems of the human driver.

Fuel economy

Fuel economy is the energy efficiency of a given vehicle, given as a distance traveled ratio per unit of gas consumption. This depends on several factors, including engine efficiency, tire design, and transmission design. In most countries where the metric system is in use, fuel economy calculates in liters per 100 kilometers (L / 100) or kilometers per liter (km / L). In some countries, such as the United States and the United Kingdom, miles per gallon are used.

You have to keep in mind that the Imperial gallon is 20% bigger than the American one.

They used liters per mile L / mile in Sweden and Norway, but both switched to using the European L / 100km system.

Five ways to reduce gas consumption

Constant pace: When driving a car, try to maintain the same driving speed as much as possible if road conditions allow. Do not brake or accelerate unnecessarily, as this will force the engine more and consume more gas.

Regular vehicle maintenance – a vehicle whose oil, filter, air filter, spark plugs, etc., are changed regularly consumes less gas. Also, make sure that the battery is working correctly and at the correct voltage.

Inflate the tires – the tires significantly affect the consumption, and it is recommended to regularly monitor the tire pressure because a less inflated tire increases the consumption.

Drive at low revs – as advised by the automotive industry, it is recommended to drive at lower engine speeds and shift to a higher speed earlier. However, it is not good or too early to change gears as this also increases consumption. It is essential to know at what speed the engine achieves maximum torque because of the engine’s maximum efficiency. Of course, the top engine efficiency varies from car to car.

Avoid short distances – on short distances; the engine does not get warm enough and thus consumes more gas.

Be sure to check out our Drive Time Calculator!