- Test Urea Concentrate of Diesel Exhaust Fluid
- If mixture is 0.7% off, mfg suggest replacing the DEF and identifying the problem
- Temperature compensating discs test DEF hot or cold
- Tester is a cost effective tool to test DEF
- IF DEF is not tested, it will cause harm to the vehicle
If the DEF concentrate is not correct, injectors may become clogged and the DEF will not work properly.