How many miles can you drive on empty before getting stranded?
Once that little fuel light comes on, how long do you have left?
Playing the game of ‘how far can I go before I have to fill up my tank?’ has left many a motorist stranded and confused at the side of the road.
Surely once the little petrol light comes on, you’ve a decent amount of mileage left, right?
Read on and we’ll show you just how far you can go, and what you can do to improve your fuel economy.
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How far can I drive once the fuel light comes on?
A common belief is that a car can go for roughly 40-50 miles after the light goes on, but that can be tricky to track. So, can you trust the fuel gauge on your dash?
The distance you can drive before you run out of fuel will depend on the road conditions and your driving habits. The approximate range on the fuel gauge – if you have it – is usually based on average miles driven.
So it may not be very accurate considering your current driving conditions.
READ MORE: Dashboard warning lights explained
Is the 50-mile limit accurate?
"There's no statutory amount that should be left in the tank before the warning light comes on," says Matthew Minter from motor manual publisher Haynes.
While 50 miles seems to be what most drivers believe the average range is, in reality it varies significantly across different makes and models.
It’s best to get in the habit of thinking of the low-fuel light as a final warning, rather than driving around with it on.
With that in mind, here are the UK’s top-selling cars, and how far each can go after the fuel light comes on*:
Honda Accord – 45 miles
Honda Civic – 43 miles
Toyota Corolla – 44 miles
Toyota Camry - 42 miles
Ford Focus – 41 miles
Ford F-150 – 43 miles
Volkswagen Jetta – 44 miles
Mazda Miata – 35 miles
Volkswagen Golf – 44 miles
Chevrolet Silverado – 34 miles
What are the dangers of driving on an empty tank?
As the fuel level gets low the car will start picking up debris from the bottom of the tank. This can damage both fuel filter and pump. The catalytic converter can also be damaged.
Running out of petrol can cause the fuel pump to run dry, which could mean a garage bill of up to £200.
With diesel cars, the engine management system shuts down before you run out of fuel, preventing damage to the car. But with petrol cars there's no system like this in place.
Getting stranded is another concern which should be taken seriously. You might be on the motorway with cars whizzing past you at high speed. This creates a dangerous situation, especially if you’ve broken down after a bend in the road.
You can take a look at our top tips to improving your fuel economy, but here are five quick fuel-preserving tactics for when you start running low:
Roll up your windows to reduce wind resistance.
Drive at around 40 mph – the most fuel-efficient speed (provided this is within the speed limit).
Drive with a light foot and maintain constant speed.
Turn off all electronic accessories, and unplug any charging phones.
Check your tyre pressure - under-inflated tyres can increase fuel consumption.
*All fuel data is based on real-life information submitted by independent drivers on TankOnEmpty.com. Figures correct as of 14/09/20