DEF or Diesel Exhaust Fluid is a crucial component in modern diesel engines. It is used to reduce harmful emissions and improve fuel efficiency. To ensure your truck runs smoothly, you need to know how to put DEF in your truck. Here’s a step-by-step guide on how to do it.
Step 1: Locate the DEF Tank
The DEF tank is usually located next to the fuel tank on the driver’s side of the truck. It is a blue-colored cap with a DEF label on it. Make sure you have parked in a level ground and the engine is turned off before proceeding.
Step 2: Open the DEF Cap
Remove the DEF cap by turning it counterclockwise. Be careful not to spill any DEF on your skin or clothes as it can cause irritation. If you do spill DEF, wash it off immediately with soap and water.
Step 3: Check the DEF Level
Before adding DEF, check the DEF level using the DEF gauge on the dashboard. If the level is low, you will need to add more DEF. It is essential to keep the DEF level above the minimum level to prevent any engine damage.
Step 4: Add the DEF
Using a DEF funnel, carefully pour the DEF into the DEF tank. Be sure not to overfill the tank as it can cause spillage. After filling, screw the DEF cap back on tightly.
Step 5: Reset the DEF Gauge
After adding DEF, reset the DEF gauge on the dashboard. The process may vary depending on your truck model, so refer to the owner’s manual for instructions.
Step 6: Dispose of the DEF Container
Dispose of the DEF container properly. DEF is not hazardous, but it is corrosive, so do not dump it down the drain or mix it with other fluids.
Step 7: Start the Engine
After adding DEF, start the engine and let it run for a few minutes to circulate the fluid throughout the engine. Check the DEF gauge again to ensure that the level is within the recommended range.
Step 8: Maintain Regular DEF Refills
Regularly refill DEF to prevent engine damage and ensure your truck runs smoothly. The frequency of DEF refills depends on your driving conditions, but most trucks require DEF to be refilled every 5,000 to 10,000 miles.
Overall, adding DEF to your truck is a simple task that requires some caution and attention to detail. By following these steps, you can keep your truck running efficiently and reduce harmful emissions.
People Also Ask
What happens if you don’t put DEF in a diesel truck?
If you don’t put DEF in a diesel truck, the engine will not be able to reduce harmful emissions, and the truck will eventually go into limp mode.
Is it bad to overfill DEF?
Yes, it is bad to overfill DEF as it can cause spillage and damage to the engine.
Can I mix old and new DEF?
No, you should not mix old and new DEF as it can cause contamination and affect the performance of the engine.