What Happens if You Put DEF in a Diesel Tank?
Diesel exhaust fluid (DEF) is a solution of urea and water that is injected into the exhaust stream of diesel engines to reduce nitrogen oxide (NOx) emissions. NOx emissions are a major contributor to smog and acid rain, and they can also cause respiratory problems in humans. DEF is an important part of the emissions control system on many diesel vehicles, and it is essential to use the correct fluid in your vehicle’s DEF tank.
If you accidentally put DEF in your diesel tank, it is important to not start the engine. DEF can damage the engine if it is not properly diluted with diesel fuel. You should immediately contact a mechanic to have the DEF removed from the tank and the fuel system flushed.
Consequences of Putting DEF in a Diesel Tank
Putting DEF in a diesel tank can have several negative consequences, including:
- Engine damage: DEF can damage the engine if it is not properly diluted with diesel fuel. DEF is a corrosive fluid, and it can damage the fuel injectors, fuel pump, and other engine components.
- Fuel system damage: DEF can also damage the fuel system. DEF can clog the fuel filter and fuel lines, and it can cause the fuel pump to fail.
- Emissions problems: DEF can also cause emissions problems. DEF can reduce the effectiveness of the emissions control system, and it can lead to increased NOx emissions.
What to Do if You Put DEF in a Diesel Tank
If you accidentally put DEF in your diesel tank, it is important to not start the engine. You should immediately contact a mechanic to have the DEF removed from the tank and the fuel system flushed.
The mechanic will typically remove the DEF from the tank by using a vacuum pump. They will then flush the fuel system with diesel fuel to remove any remaining DEF. The mechanic may also need to replace the fuel filter and fuel pump if they have been damaged by the DEF.
Preventing DEF from Getting into a Diesel Tank
There are several things you can do to prevent DEF from getting into a diesel tank:
- Use the correct fuel nozzle: When refueling your diesel vehicle, be sure to use the correct fuel nozzle. DEF nozzles are typically blue, while diesel fuel nozzles are typically black.
- Be careful when filling up: When filling up your diesel vehicle, be careful not to overfill the tank. If you overfill the tank, DEF may spill into the fuel system.
- Keep DEF out of reach of children: DEF can be harmful if ingested, so it is important to keep it out of reach of children.
Conclusion
Putting DEF in a diesel tank can have serious consequences. If you accidentally put DEF in your diesel tank, it is important to not start the engine. You should immediately contact a mechanic to have the DEF removed from the tank and the fuel system flushed.
By following the tips above, you can help to prevent DEF from getting into your diesel tank and avoid the potential problems that can result.
