Remove excess weight
Take unnecessary bulky items out of the car, such as that shovel you put in the boot to clear snow in winter. Also, if the kids are staying at home, so can their buggy.
Remove external carrying kit
Such as roof boxes or bike racks whenever they aren’t being used. The car has to work harder to cut through the air due to the extra wind resistance such things create.
Keep your car well maintained
Pump up your tyres to reduce resistance and get the car serviced regularly to keep everything moving smoothly under the bonnet.
Plan your journey
Avoid traffic black spots and busy times if possible, and get the map or sat-nav out to avoid getting lost and driving farther than necessary.
Switch off air conditioning when it isn't needed
Unless it’s really cold or uncomfortably warm in the car, leave the air-con turned off. Using it can put a strain on the engine and burn more fuel, especially at low speeds. The same goes for heated windscreens, demisters and other electrical appliances.
Change gear early
Be gentle and change gear early. Accelerate and brake gently, and change to a higher gear as soon as possible. As a general guide, change up before 2000rpm in a diesel and 2500rpm in a petrol, without letting the engine struggle at low revs.
Lots of modern cars come with engine stop-start, which can be great if you let it work properly. Sit with your foot on the clutch and the engine will continue to burn fuel; take it off and you’ll save money and fuel.
Stick to the speed limits
What Car? research shows that doing 80mph uses up to 25% more fuel than doing 70mph.
Use gravity to your advantage and build up momentum when going downhill to help you then get uphill, rather than accelerating more to get up the incline. The best way to do this is to read the road as if you were on a pushbike and accelerate accordingly.
Look far ahead while driving and keep moving where possible by anticipating obstacles. Easing off the throttle and keeping momentum is better than speeding up, braking and then starting all over again.