The Standard Tunit and Advantage 3 solution for diesel vehicles has provided fuel savings to individuals and fleets as shown in customer feedback in testimonials and magazine tests. To see what your vehicle could possibly save please use the calculator below.

This fuel calculator can be used and a good estimate for diesel vehicles and is a rough guide for petrol vehicles.

How is fuel saved?

Enter Annual Mileage Enter Average Miles per Gallon Enter Average Fuel Cost (P/L)

Use The Calculator To Find Out ROI

? Month(s)


To calculate how much a journey will actually cost in fuel, please provide the miles covered, the estimated MPG for your vehicle, and the price of your diesel in pence.

  • Manchester to Liverpool
  • London to Glasgow
  • Birmingham to Bristol
  • Leeds to Essex
How many miles will you be travelling What is the average MPG of your vehicle? What is the cost of your fuel ((P/L))?

This journey would cost you:


With a Tunit installed:



What affects my fuel consumption?

Many factors can have an effect on your car’s fuel consumption including your driving style, traffic conditions, excess weight, roof racks, and the general condition of the car.

Is it better to open a window than use air con?

At motorway speeds the amount of aerodynamic drag caused by an open window is considerable. When you’re going fast and need to cool down, use the air conditioning, otherwise at slower speeds (especially in town) you can use the windows.

What is the most fuel efficient driving style?

Try to be smooth and avoid accelerating harshly, and try to predict the traffic flow to avoid having to stop – it takes a lot more energy to get a car moving than it does to keep it moving. Even with modern stop-start systems you’re still consuming energy when you start moving, and that energy ultimately has to come from the fuel.

What can I do to improve my fuel consumption?

Some of the simplest measures can make a big difference. Make sure that your tyres are at the correct pressure and are in good condition, and get your car serviced according to the manufacturer’s recommendations.