AdBlue is a non-toxic, clear solution composed of 32.5% high-purity synthetic urea and 67.5% deionized water. It is used in diesel vehicles with Selective Catalytic Reduction (SCR) technology to break down harmful nitrogen oxide (
) emissions into nitrogen and water. AdBlue is stored in a separate tank and is not mixed with diesel.
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Key details regarding AdBlue:
Purpose: It is a diesel exhaust fluid (DEF) required to meet modern emissions standards, often reducing
by up to 90%.
Composition: 32.5% urea + 67.5% deionized water.
Storage & Handling: Must be stored in a cool, dry area away from direct sunlight, with a shelf life of 6-12 months. It freezes below -11?C.
Replacement: The tank must be refilled when warned, or the vehicle may not start.
Not Water: You cannot use plain water; doing so will cause severe damage to the SCR system.
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It is commonly found at gas stations, automotive stores, or online in containers
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