Many drivers have found themselves in this situation. One might mistake the pump at an unfamiliar gas station, another might have recently changed their car to a gasoline model but out of habit fill it with diesel. Finally, a person might drive several cars (personal, company, etc.) and sooner or later make a mistake.
In general, the advice not to pour diesel fuel into a gasoline engine will not help, since it is impossible to be 100% insured against this. It is better to know what measures should be taken when this happens to minimize material damage.
What should I do if I put diesel in the tank instead of gasoline?
To begin with, let's decide which diesel fuel is dangerous. First, the pressure with which the fuel mixture enters the gasoline engine is not enough to ignite a diesel engine. Therefore, as soon as diesel fuel is poured into gasoline, the resulting “hybrid fuel” burns partially, carbon deposits are formed.
In addition, diesel is rich in paraffins, which will inevitably clog any systems that are not designed to operate with this type of fuel. Ultimately, these processes lead to:
- clogging of filters, nozzles and systems;
- cylinder desynchronization;
- excessive detonation and gradual engine failure.
In short, it is absolutely contraindicated for a gasoline engine to run on diesel fuel and the sooner action is taken, the less damage and bad consequences there will be. In any case, it is safest to turn to professionals from Roadside assistance Sofiawho will offer the necessary assistance: repatriation to service.
If the engine does not start!
First, let's assume the most favorable option - you realized in time that you were pouring diesel into a gasoline engine.
The main thing – do not try to start the car in this position!
Also, do not take into account the bad advice you may find on the Internet – to top up the tank with gasoline. Nothing good will come of it. Even 5% concentration of diesel fuel can lead to damage to the catalyst and other serious damage.
The only competent solution is to order a Repatrak to take you to the nearest service station, where the tank will have to be dismantled - drained and dried. At the same time, there is no need to change filters or clean the pump, since you did not have time to start the car, this will be a waste of money. By the way, if a gas station employee mistakenly fills a diesel engine into a gasoline engine, the gas station must pay for the repatriation and elimination of the problem, so always check.
Another relatively favorable option is if you tried to start the engine, but it did not start. This happens if there is very little gasoline left in the tank and its concentration was not sufficient for ignition (because diesel requires higher pressure). In this situation, the algorithm of actions is similar, but you still need to clean the fuel pump.
The engine started.
This is bad! Diesel enters gasoline engines very quickly, as diesel fuel is heavier and immediately sinks to the bottom of the tank. After just a few dozen meters, you will feel strange sounds and detonation, and black smoke is emitted from the exhaust due to incomplete combustion of the fuel.
At the first signs of such vehicle behavior, you should immediately turn off the engine and call Towing. This time you will have to pay not only for draining the gasoline and drying the tank, but also for a complete cleaning of the fuel system, replacing all filters and diagnosing the engine. The main thing is not to wait until the car stops on its own or “burns out” the diesel fuel, otherwise all this will end in a major overhaul.
If you filled up with diesel instead of gasoline – what should I do?
If you realized in time that you were pouring gasoline into a diesel engine and filled the tank with it – no more than 20%, then you will get out of the situation with less damage. Just use the “bad advice” mentioned above. Fill the tank with diesel fuel up to 100% and slowly stir the resulting mixture, periodically adding diesel fuel to the tank. This is allowed in this situation.
If you have poured more than 20% gasoline instead of diesel, what should you do in this case?
Everything is the same as in the previous case. Do not start the car - just drain and dry the tank at the service station, order a thorough cleaning and diagnostics. Here it is important to know that the diesel engine will not stop on gasoline, but will work, gradually collapsing. That is why it is desirable to find out as soon as possible that you have filled in the wrong fuel.
Bulgarian 
Bulgarian
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