‘I’m a car expert – Petrol and diesel owners shouldn’t follow common fuel tip’

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Petrol and diesel drivers should never follow a simple fuel hack when topping up, according to car experts.

Quotezone warns drivers may be tempted to get as much fuel as they can but this could lead to overfilling.

Going beyond the car’s maximum limit can cause excess petrol to fall out of the tank and drip onto the floor.

Meanwhile, motorists would still be charged for this as money is calculated based on the fuel leaving the nozzle.

However, specialists also warn drivers are risking serious damage to their vehicles in the process.

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Quotezone explained: “While overfilling the tank can be tempting and seem like a way to save additional trips back to the pump, you will actually end up paying more for your fuel.

“Filling the tank beyond maximum capacity can cause the fuel to overflow and waste money. Overflowing fuel can also fall to the ground which causes a potential fire hazard and you will still be charged for the waste.”

Experts at WeBuyAnyCar have previously warned overfilling a car could have serious repercussions.

Pouring in too much fuel could cause excess pressure in the system and lead to a hazardous leak.

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Extra fuel in the tank may cause the crankshaft to dip into the oil which will prevent a vehicle from revving up.

In some cases, a car may stall or will likely drive slowly until petrol or diesel has been burned off. Experts also warned of substantial damage which could lead to “costly repairs”.

WeBuyAnyCar added: “Overfilling your fuel tank can cause liquid gas to enter the charcoal [canister] or carbon filter.

“These systems are designed to work with vapours and not liquids. If you overfill your tank, this can cover the vapour intake hole with gas, which is then sucked into the charcoal [canister].

“This can damage the [canister] and possibly other parts of the system, which can cause the car’s ‘check engine’ light to come on – and could also leave you with a costly repair bill.”

A light may blink on the vehicle dashboard if drivers have poured too much fuel into their tanks.

Meanwhile, some vehicles will be fitted with automatic shut-off mechanisms which are activated when the tank has reached full capacity.

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