AdBlue is a diesel vehicle exhaust fluid that is a urea solution stored in a tank separate from the diesel tank. It is simply injected into the exhaust system to react with harmful nitrogen oxides (NOx) and convert them into nitrogen (N2) and water (H2O). Packed in a 10-liter container. Suitable for all Korean, European, Japanese, and American diesel vehicles. Price: 65 Riyals / 10 liters.