Whether you’re someone who’s tried to go downhill slowly, or you’ve simply wanted to save petrol, you may be guilty of coasting when driving. Although it’s a common habit learnt by many of us, some still don’t understand the meaning of coasting and the negative effects it can have on your vehicle. To find out more about why coasting is a bad driving technique and how you can avoid it, read our comprehensive guide below.
So, what is the meaning of coasting? Coasting while driving refers to when the clutch pedal is held all the way down - or when the car is put into neutral - so the vehicle continues moving forward with no acceleration. This technique disengages the engine from the wheels, so the vehicle rolls along the road freely using just momentum and gravity (if travelling downhill).
Coasting is a normal technique that is used frequently when driving, but for very short periods – such as when coming to a stop or changing gear. However, many motorists rely on coasting for extended periods, which isn’t recommended.
If you’re wondering why coasting is seen as a bad driving technique, here are five top reasons:
- Reduces control: Coasting can reduce the ability for you to control your vehicle, especially if you need to react quickly in unexpected scenarios. For example, if you choose to coast on a downhill road, you will not have as much control over your speed so could find it more challenging to slow down or stop if an emergency occurs.
- Limits engine braking: If you are coasting with the engine off, you will lose the ability of engine braking. This is what helps to slow the car down when the accelerator is released, which is more efficient and provides better control when driving downhill.
- Increases wear of the brakes: When coasting, you’ll probably find yourself braking more to control your speed, which inevitably leads to more wear and tear in the brake department.
- Reduces steering power: If you attempt to coast in a modern vehicle, it’s likely that you’ll lose the ability to utilise the power steering and power brakes, which will make steering and braking more difficult.
- Affects fuel efficiency: Coasting with the engine off may not always save fuel. Many modern vehicles operate with advanced systems that are more efficient with the engine switched on, but without using the accelerator.
Coasting is not illegal in the UK; there isn’t any law that specifically prohibits drivers from coasting when driving downhill. However, if you were involved in an accident where you were coasting at the time, it could be argued that you did not have control of the vehicle - which would be an offence. Also, if you were to make an insurance claim, your insurance company could refuse to pay out, leaving you with a hefty bill to fix damages.
People often coast when they’re trying to save petrol, as it reduces the need for constant acceleration and use of the engine. Likewise, it can be used for controlling your speed while driving. Coasting reduces the noise of the vehicle for a more peaceful drive, as well as ultimately being better for the environment by minimising the emissions from your car. It can also help to preserve your car’s brakes by preventing the chance of overheating and reducing frequent braking, especially when going downhill. However, the safety and efficiency can substantially vary depending on the situation.
If you ever find yourself in a situation where you need to stop your car from coasting and regain control of your vehicle, there are a few things you can try. Gently press down on the accelerator pedal to engage the engine and power the wheels, or gradually apply the brakes to slow down and stop (sudden braking can be dangerous).
If you’re driving an automatic vehicle and want to stop coasting, make sure the transmission is in the ‘drive’ position to power the engine, and as a result, the wheels. For a manual transmission vehicle, engage the clutch to disengage the engine from the wheels, then shift into your preferred gear to regain control.
To avoid coasting and keep in control of your vehicle, consider these tips:
- Keep to a steady speed: Maintain a steady speed that is appropriate for the routes you are taking. Make sure to avoid unnecessary acceleration and deceleration.
- Anticipate traffic and road conditions ahead: Look ahead in your journey to be able to adjust your speed when approaching certain junctions, road signs, and changes in road levels.
- Use engine braking: In a manual car, make sure to downshift when going downhill or slowing down.
- Implement cruise control: When appropriate, consider using cruise control to maintain a consistent speed.
- Drive in the correct gear: If you are in a manually operated car, ensure you’re in the appropriate gear for your speed and road terrain. This will help to maintain control and minimise chances of coasting.
We hope our guide around what coasting is and how to avoid it has helped you. If you’re unsure about your local regulations or would you like to speak to one of our experts, why not pop into your nearest Eurorepar centre? Or, to check the condition of your car and make sure everything is in order before your next journey, we also have a range of services to choose from.
