Best practice for DEF levels is to add or top of DEF tank every time diesel is added. The DEF fill cap is an industry standard blue and easily identifiable. Can it be stored anywhere? No. DEF will ...

You need several components to make the system work, including: A tank that can hold about 5 gallons of DEF. A heater to help prevent it from freezing if you drive in areas where the temperatures ...

Easily Clean the Entire SCR DEF System Under certain conditions, the water in DEF can evaporate, leaving behind white crystal urea deposits. Over time, these crystals can build up, clogging system ...

The good news is that it should be hard to mix up the DEF tank for the diesel fuel tank, as the port for the former tends to boast a different color cap. So, please pay attention to what you're ...