Incorrect Fuel Used in Vehicle

Do not attempt to start the engine if you have filled the fuel tank with incorrect fuel. Incorrect fuel use could cause damage not covered by the Ford Express New Vehicle Warranty. The vehicle should be immediately checked.

What Happens if You Put Petrol in a Diesel Car?

Putting petrol in your diesel car may damage your fuel system if not dealt with properly. When you put petrol fuel in, the mix of petrol in diesel acts as a solvent, reducing lubrication and causing damage to the pump as the metal parts come into contact and rub together. Other parts of the fuel system which might not be compatible with petrol, can also be damaged.

Switching on your car’s ignition will circulate this mix of petrol in diesel through your fuel system, causing further contamination to other components.

Ultimately, this could mean that the entire fuel system requires costly repairs, or replacing completely.

What happens if you put Diesel in a Petrol Car?

Putting diesel in a petrol car is the less serious mistake to make, and the damage is usually not so severe. What damage can it cause? If the engine is started the diesel will coat the spark plugs and the fuel system - typical diesel in a petrol car symptoms include the vehicle misfiring. Other signs of diesel in a petrol car include the engine smoking and of course, the vehicle stopping. The engine may cut out or fail to start at all.