# How to calculate the fuel consumption of a car

Aug 8, 2021 Information

How much fuel do you need to run a car on a day’s work?

This is a question that comes up a lot in India, where the government has decided that a petrol-powered vehicle is just as efficient as a diesel-powered one.

In fact, a petrol car consumes around 7-8 litres of fuel per 100km driven.

The diesel-powering vehicles that come on the market now, such as the Renault Zoe, are usually around 20-25 litres per 100kms driven.

But how do you know if your car is efficient?

A fuel-economy test is a good way to check that your vehicle is really fuel efficient.

It helps you see how much fuel you’ll need to drive on a daily basis, and it can also show how long you’ll be able to take the same amount of fuel on a single trip.

Here’s how you do it:1.

Take your daily mileage and multiply by 8.

If it’s less than 8, you’re a diesel car, not a petrol one.2.

Find the nearest fuel pump.

If you’re driving a diesel vehicle, the nearest petrol station is usually within 30km.

You can find petrol stations across India, but the easiest is in the southern part of the country.3.

If your car runs on petrol, go to the petrol pump.

You’ll need a petrol tank, as petrol cars don’t have a petrol filler.4.

Fill your petrol tank with petrol.5.

Take the car back to your fuel station and fill up the tank with fuel.6.

Drive your car.7.

If all goes well, your fuel consumption will be below 8 litres per km.8.

If not, repeat step 7.9.

Repeat steps 7 and 8 to get a final fuel consumption figure of 8 litres.10.

If that’s not the case, you can find the fuel tank at your nearest petrol and diesel pump.

You can check how much petrol and petrol-based fuel your car needs to run by taking a fuel consumption test, which involves filling a tank with gas and then filling it with petrol or diesel.

The fuel-consumption test is an effective way to determine the efficiency of your car, says Amit Kumar, the president of the Centre for Engineering and Technology Research (CETR), a private think-tank in Mumbai.

“The fuel consumption is a reflection of the efficiency, the car is always moving and it’s constantly being driven,” he says.

“The car consumes a lot of fuel when it is moving.

The amount of time it needs to be on the road depends on the speed of the vehicle, and how fast it is going,” he adds.

If you’ve never done a fuel-efficiency test, you might think it’s impossible to achieve a certain efficiency on a fuel tank.

But Kumar says you can achieve this if you’re willing to take a test.

“For example, a diesel motor can run on about 60 liters of petrol per 100 kilometers, whereas a petrol motor can only run on around 60 litres of petrol,” he explains.

“If you take a fuel efficiency test, the efficiency will be close to 10-12 per cent,” he points out.

And if you do this, you’ll also have to pay the fuel tax.

“That will help you save some money,” Kumar says.

If your car does run on petrol and your petrol consumption is lower than 8 litres, you need more fuel to get the same mileage.

“If you fill the tank up with diesel, you will burn about 80 litres of diesel per 100 kilometer, whereas if you fill it up with petrol, you would burn about 25 litres of extra petrol per kilometer,” he clarifies.

And that’s only if you take the test and fill the petrol tank up.

“A diesel engine is so efficient because it has a lot more horsepower, whereas petrol engines are only very efficient because of the compression ratio, which is around 1.8,” Kumar explains.

The petrol-engine is also much more fuel-efficient than the diesel engine.

So, is your car efficient?

Is it a diesel or petrol car?

The answer depends on how you measure the fuel usage.

Diesel cars are much more efficient than petrol cars.

“There is no difference in the efficiency between petrol and Diesel engines,” says Kumar.

“You just have to take some fuel and make sure that you have a diesel engine,” he stresses.

A diesel car consumes less fuel than a petrol or petrol-driven car, and that’s because it doesn’t have any compression ratio.

“With petrol engines, you don’t need as much fuel as with diesel engines.

The fuel efficiency is around 10-15 per cent, which makes diesel engines the best option,” Kumar adds.

But, there are other factors that can influence the fuel efficiency of a diesel driven car.

For example, there may be an issue with the engine itself, which can reduce its fuel efficiency.

“A diesel motor requires a lot less power than a gas