Misplacing fuel can destroy cars

Mistaking fuel into a car engine is always a disastrous mistake, but the serious consequences depend very much on the driver's handling and knowledge.

After the rare incident of mistakenly pouring gasoline into a SantaFe oil car at CTM petrol store, number 1174 Duong Lang, Lang Thuong ward, Dong Da, Hanoi on January 12 caused the car to burn, many people asked information about the harmful effects of misusing fuel into automobile engines.

First of all, in the rare incident of mistakenly burning gasoline that burns the SantaFe in Duong Lang (Hanoi) on January 12, the cause of vehicle fire comes from the withdrawal of gasoline fuel from the tank and carelessness to catch fire. , spreading into cars causing fire, but there is absolutely no way that different fuels react when mixed causing fire.

In Vietnam and around the world, the wrong fuel injection between gasoline and oil is not uncommon, especially in recent years due to the increase in the number of cars using diesel.

Therefore, in the design of standard gasoline fuel pump columns, diesel pumps are designed to be bigger than the fuel tank mouths of gasoline-powered cars to limit misalignment, but there is still a chance of pumping mistaken gasoline for diesel vehicles due to smaller gas pumps.

According to the website, dieselhead.co.uk, the pumping of gasoline into diesel vehicles is among the top 10 causes of vehicle damage in 2012, mainly due to pumping gasoline wrongly into diesel engines.

Pouring the wrong fuel can damage the engine
Steam if not handled properly. (Photo: carsguide)

The result is to inject gasoline into diesel cars

According to FuelFixer website, a popular fuel injection troubleshooting service in the UK, when you put gasoline on the diesel and keep going, depending on the amount of diesel left in the tank, the car can still continue. keep moving, but after a distance will be dead, must be pulled back to the workshop to repair. If the vehicle is parked long after being mistaken (or left overnight), it may be difficult for the vehicle to explode immediately after starting up and quickly die.

Normally, diesel will be heavier than gasoline, so when it is injected, gasoline will tend to float above the oil, but still dissolve into the oil to follow the fuel injection into the combustion chamber. FuelFixer page cited a case after pumping the wrong gasoline, the diesel car continued to run 20 miles (nearly 35km) to die, and in this distance, the diesel continued to be consumed by the engine, but with the function The amount of gasoline mixed up gradually.

When gasoline from fuel tank goes to fuel pump line, it will dissolve oil, reduce lubrication and quickly wear high pressure pump, through fuel nozzle, then go to combustion chamber, wear checker, piston, piston , engine cylinder. Diesel engines without spark plugs that use a pressure-to-pressure mechanism that is large enough for self-blasting oil, but the octane of gasoline is higher so it requires greater pressure, gradually causing the diesel engine to make a knock on the pile. stronger and gradually died.

According to FuelFixer, the most serious damage is due to the wrong pumping of gasoline into a diesel engine is a hot phenomenon and a bundle of machines, a broken checker or a set of steam, piston, cylinder, leading to a replacement of the machine. If you leave the car for a long time and don't go immediately after mistakenly filling the gasoline, gasoline may corrode the rubber fuel line, leading to a new replacement.

If it immediately detects a mistake, never start the engine. Carry out the cleaning of all the mixed fuel, use the hand pump to pump out all the oil and gasoline, put new oil into the high pressure pump to continue washing. After cleaning the nozzle, spraying with gasoline and oil, can restart the engine and run idle for 10-20 minutes to check, if it still explodes as usual, you can rest assured to use, and if there is sound Strange call from the engine, it is advisable to turn off the engine and bring it to the maintenance workshop for a full inspection.

However, Ireland's AA car insurance and insurance service website has a rather 'subjective' recommendation that if you use older diesel engines and the amount of gasoline poured in is more than 10% (5 liters). If the gasoline in a diesel tank is 50l capacity, then it is necessary to draw gasoline and diesel, and if it is lower than 10%, it is only enough to fill the diesel fuel tank.

Pour diesel oil into the gasoline engine

As mentioned above, this case is more rare because the diesel pump hose at standard fuel pumps is always designed to be bigger than the fuel tank of a gasoline car so it is not suitable. Usually, it is more common to dump diesel into gasoline vehicles. In some special cases, such as pouring oil from a small tap or bottle, can . into a car, information on car forums in the country like Otofun offers quite a multidimensional dimension.

It is said that the diesel and gasoline mixture will explode in the engine itself when there is enough pressure in the cylinder and no spark plugs are needed, leading to the engine running at full capacity apart from the ability to control and break or break. engine. Some other members claim that as soon as the oil enters the gasoline engine will cause the engine to get wet by wetting the ignition spark plug, sticking oil to the mist nozzle makes the engine unexploded, so it does not cause too much harm. .

According to international forum pages for car engines like thenakedscientists, when mistakenly pouring oil into a gasoline engine will cause a lot of smoke to be emitted due to the oil not being burned, gradually turning to jam and bundles of engines due to soot clinging to a lot of cylinders jammed the piston. Therefore, if the vehicle is moving at a high speed and is bundled, it may also lead to a crankshaft break, damaging the engine.

In the case of finding a diesel to be mistaken for an early gasoline engine, depending on the amount of diesel that has been poured into the tank (above or below 10%) and the type of engine that is old or new, the user needs to have solutions different logic. In all cases, however, the best way is to never start the car (or turn off the engine immediately if you have just fueled the engine), then proceed to unplug the diesel mixture from the tank.

If the amount of diesel fuel poured is low (less than 10%) compared to the capacity of the fuel tank and the motor of the old generation, not using electronic fuel injection, it is possible to fill up the fuel tank to dissolve the diesel and the car can still run. normal, just a little smoky. If it is the current engine, the best way is to pull the car back to the garage to remove all the fuel, to refuel it to clean the engine, high pressure pump, gas nozzle . then refuel it to run the car. normal.

Epilogue

In any case, the wrong type of fuel can cause serious consequences such as engine damage, but it is also easy to overcome if detected early and handled promptly. The best treatment is still to absolutely not start the engine, then take it to the garage to remove all the fuel mixed in the tank, rinse the entire fuel feeding system and engine, then dump it. The correct type of materials to start and check the engine before operating the vehicle again.