There are all kinds of ways to reduce the amount of fuel you use. Some of them might seem like small changes, but they could make you big savings in the long run:

Don’t warm up
Leaving the engine running for five minutes before driving wastes fuel, so maybe wear an extra layer instead.

Avoid short journeys
Try not to make short journeys as it can result in poor fuel consumption.

Make tyre checks
Badly inflated tyres put more strain on your engine and burn more fuel. Try and check your tyres every week.

Reduce your weight
Take any unnecessary items out of your car - like tools in the boot. More weight means heavier higher fuel consumption.

Drive smoothly
Braking or accelerating sharply uses more fuel. Maintaining a steady speed is best.

Turn the engine on last
Put on your seatbelt and check your mirrors before you switch your engine on.

Improve your aerodynamics
If you have a roof box, or even a roof rack, remove it when it’s not in use, and close your windows and sunroof when driving.

Change gears efficiently
Change gear at around 2,000 rpm in a diesel car or around 2,500 rpm in a petrol car to put less strain on your engine and use less fuel.