Lower emission driving

1. Make smooth moves – avoid harsh braking and accelerating

If you regularly speed up and then slam on the brakes, you could increase the amount of energy you use. Instead, try to aim for a smooth driving style. This could help you maintain momentum so you may not use and lose as much energy or fuel accelerating and braking unnecessarily.

2. Look ahead to anticipate the traffic

When you’re behind the wheel, it’s a given that you should always anticipate the road ahead. But if you become skilled at judging other cars’ speed and distance, you could play your part in keeping the traffic flowing – and that could help you to  keep a steadier, more fuel-efficient driving style.

3. Avoid excessive speeds

There’s a straightforward rule for speed and energy use: the higher your speed, the higher your energy consumption. Remember to drive within the speed limit.  

Electric car energy consumption (and therefore range) is affected by high speeds too.

4. Keep an eye on your MPG or miles per kWh

Watching your miles per gallon (or miles per kilowatt hour if you’ve got an electric car) could be a great way to get feedback on whether you’re driving efficiently – the greater the number, the better. 

In many cars it’s possible to set the trip computer to record a journey’s miles per gallon or miles per kWh. You can then use this to see how your energy-efficient driving skills are developing.

5. Get to know your car’s ‘eco mode’

If your car is reasonably new, it might have an eco (or ‘economy’) mode. This can help you use less fuel or battery charge by altering the way some of your car’s internal systems work. 

The changes triggered by flicking the ‘eco’ switch can depend on the car and manufacturer but you could generally expect acceleration to feel slower and any air conditioning may reduce its output.  

You may also find, particularly in automatic petrol and diesel cars, that you shift to higher gears sooner. 

Part of the fuel-saving technology fitted to petrol and diesel cars is so-called ‘stop/start’, which automatically turns off the engine when your car isn’t moving. 

6. Learn to love regenerative braking if you drive an EV

Electric cars use regenerative braking (regen braking) to help you get more miles from your battery. When you take your foot off the accelerator to slow the car down, the electric motor acts as a generator, returning electrical energy to the battery and slowing you down in the process.  

If you’re new to EVs, it can take a little time to get used to regenerative braking as you may find your car slows down more quickly than in a petrol or diesel version.

It’s a more pronounced slowing than that achieved if you change down a gear to help you slow down, but similar in feel. 

Most electric cars let you set a level of regenerative braking when you’re behind the wheel. This way, you can become more comfortable with how it works. You could start off with the lowest setting and then adjust it as you adapt. 

7. Go easy on the aircon (when you can)

If you drive a petrol or diesel car, turning on the aircon can burn fuel. It’s more fuel efficient to open a window than use aircon when driving, even at higher speeds. With an EV, using the heater to keep the car toasty on a cold day can similarly drain your battery’s charge. Most EVs, however, can be heated up in winter or cooled down in summer while plugged in for a charge. This means that the heater and air conditioning may not have to work so hard when you get in to drive which may use less battery energy.

8.Take stock of your tyre pressure

Your tyres lose pressure over time, and this can be a problem for both safety and efficiency. When they’re under-inflated, their rolling resistance is higher – and to overcome it, your car uses more fuel or battery charge. You can usually find the recommended tyre pressure for your car stamped on the inside of the driver’s door frame. As a rule of thumb, give them a check at least once a month, and always before long journeys.

9. Lose the load

The heavier your vehicle, the more energy the engine or battery needs to move it forward. So if you’re guilty of car clutter, now could be the time for a clear-out. That includes bike carriers, roof boxes and roof racks plus luggage in the boot too.

10. Ensure your car engine is as efficient as possible

For petrol and diesel cars, one way which could help to reduce your tailpipe emissions is to make sure your engine is running as well as possible. This means making sure your car is serviced as recommended by the manufacturer.  

And finally...

If you’re keen to reduce your transport costs, then you can explore lift sharing, or reducing your car use by using park and rides and replacing shorter, everyday journeys with active travel – walking, wheeling and cycling.

All information is based on the most up-to-date research from Energy Saving Trust as of January 2025.  

This article isn’t advice and is for general guidance only. Always do your own research before taking any action. 

We’re not responsible for the content of the websites mentioned in this article.