Motorists in the UK could risk hefty repair costs if they fill up with the wrong fuel amid the petrol and diesel crisis.
Experts at LeaseLoco warn the damage to cars “could be severe” in some cases which can result to expensive repairs.
John Wilmot, CEO of the car leasing website, warned drivers to be careful of misfuelling as it’s already a “common error” anyway.
However he has confirmed it is more dangerous for diesel drivers to make the mistake with petrol than vice versa.
He said: “Even under normal circumstances, 400 motorists accidentally put the wrong fuel in their vehicles every day.
“If you do put the wrong fuel in your car, what you do next can determine whether you’re going to face a huge repair bill, or not.”
He added: “Petrol damages diesel engines because it increases friction between parts in the engine.
“Diesel on the other hand, acts as a lubricant helping the fuel pump do its job.
“The more petrol that’s pumped through the engine the more damage it will do.
“And the damage to fuel pumps, injectors, fuel-tank could be severe. The worst-case scenario, you may even need a new engine.”
John claimed putting diesel into a petrol car could clog up the spark plugs and fuel system.
But luckily there shouldn’t be any lasting damage once the fuel has been drained out of the car.
It comes as the AA found a “dramatic rise” in misfuelling compared to last weekend.
They said making the mistake would “unnecessarily reduce the fuel available” as drivers could be forced to drain their tanks.
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Over the weekend, the breakdown cover company said 250 incidents occurred with 20-25 on an average day.
And the service could cost motorists a whopping £200 to fix their mistakes too.
In some cases, your insurance won’t cover this type of damage to your car.
It comes as petrol stations raised prices to “recover the income”, according to AA experts.