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What happens if I fill up with the wrong fuel when refuelling?
It quickly happens that you are unfocused and fill the wrong fuel into the car. This carelessness can have serious consequences and cause considerable damage to the vehicle. Depending on the type of fuel and the engine for which the car is designed, different problems can arise: from engine damage to expensive repair bills, everything is possible.
If you accidentally put diesel in a tank, it can cause internal damage. Gasoline engines are not designed to burn diesel fuel, so the engine will be damaged. In this case, it is important not to start the engine in the first place and to consult a car professional. Emptying the pipes should definitely be carried out by a professional and not attempted on your own.
The use of gasoline in a diesel engine is sometimes even more harmful to the car. Gasoline ignites faster than diesel, causing misfires, knocking, and potentially permanent damage to the engine. Modern diesel engines are particularly sensitive to gasoline. If you find that you have put gasoline in a diesel engine, you need to turn off the engine as soon as possible and consult an automotive expert. Of course, it is best if the engine is not started in the first place.
In addition to fuel mix-ups, using fuel with a lower octane rating than your vehicle needs can also cause the engine to malfunction and overheat. So if you accidentally fill up with the wrong octane number, it can cause serious damage. To avoid these problems, it is important to know the octane number of fuel that your own vehicle needs.
Is incorrect refuelling insured?
No, usually not. If the car is filled with the wrong fuel, this falls under the category of operational damage. According to the conditions of the car insurers, only damage to the insured vehicle that is due to an accident of the vehicle is compensated for in fully comprehensive insurance. The prerequisite is an event that acts on the vehicle directly from the outside, suddenly with mechanical force. Damage caused by the insured vehicle, i.e. so-called operational damage, is usually not insured. However, be sure to check your insurance policy and talk to your intermediary. Some policies cover part of the costs, for example for towing or emptying the tank.
What should I do if I have refuelled my car incorrectly?
If you have filled your car with the wrong fuel at the petrol station, you must never start the engine or put the key in the ignition. Instead, put the car in neutral or, in the case of automatic models, neutral and ask for help to push the car to a safe place. Then call a tow truck and let them drive you to a specialist or qualified workshop. The extent of the damage depends, among other things, on how much fuel was added and whether it circulated in the engine. Therefore, it is best not to start the engine in the first place.
How do I avoid misfuelling?
Be extra careful when refueling, check the type of fuel, and make sure you're using the correct pump. This can avoid trouble and high costs associated with incorrect refuelling in advance.
source : What do I do if I fill up my car incorrectly? (dieversicherer.de)