What do I do if I put Diesel Exhaust Fluid in the Diesel Tank?

DEF (Diesel Exhaust Fluid) is a critical component of modern diesel engines as it helps to reduce harmful emissions. However, if DEF is accidentally added to the diesel fuel tank, it can cause serious damage to the engine.

When DEF is added to the diesel fuel tank, it can cause the fuel to become contaminated. This can lead to clogs in the fuel system, damage to the fuel injectors, and even engine failure. In addition, the DEF can cause the fuel to lose its lubricating properties, which can lead to increased wear and tear on the engine.

If you accidentally add DEF to your diesel fuel tank, it is important to take immediate action. The first step is to stop driving the vehicle and turn off the engine. This will help prevent further damage to the engine.

Next, you should have the vehicle towed to a mechanic or dealership as soon as possible. The mechanic will need to drain the fuel tank and flush the fuel system to remove the DEF. Depending on the extent of the damage, the mechanic may also need to replace some components of the fuel system.

Prevention is the best way to avoid this problem. Make sure to store DEF and diesel fuel in separate containers and always double-check the labels before adding anything to your vehicle. If you are unsure about which tank to add DEF to, consult your vehicle’s owner manual or contact a professional for assistance.

In conclusion, adding DEF to the diesel fuel tank can cause serious damage to the engine. If this happens, take immediate action and have the vehicle towed to a mechanic or dealership for proper repair. Remember to always keep DEF and diesel fuel separate and double-check labels before adding anything to your vehicle.

To be 100% sure, TEST the fuel with this test kit: https://dieselcraft.com/def-test/