More and more people in the UK are accidentally filling their car with the wrong fuel, and drivers who mis-fuel their diesel cars with petrol can expect a costly bill to repair the damage.

Repair costs, due to damaged engines costs from £300-£3,000 depending on the type of diesel engine fitted to the car.
Mis-fueling can be even more of a problem for hire-car companies that have fleets of hundreds of thousands of vehicles to maintain. The cost of upkeep on these vehicles alone can be £50m so any preventative actions that the hire companies can take to stop people putting the wrong fuel in their vehicles would be an added bonus.

The highest risk vehicles are those fitted with the modern common rail diesel engines. These are less tolerant to the wrong type of fuel and once petrol gets in it can mean replacing the pressure fuel pumps, line filters, tank, and injectors. You can see why it would cost a few thousand to fix this!

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