Here are some of the most commonly asked questions about AdBlue®:
Is AdBlueⓇ hazardous? There are no known hazardous properties of AdBlueⓇ. However, it is corrosive and can dissolve materials that are not listed as AdBlueⓇ proof in ISO 22241.
What happens if I run out of AdBlueⓇ? It’s critical that you keep your vehicle topped up with AdBlueⓇ and that you have an emergency supply available at all times. Not only could running out result in hefty fines, it could also prevent your engine from starting at all. Your engine would not be damaged from running out of AdBlueⓇ but it could affect performance and mean that it could be exceeding legal emission limits.
What should I do if I spill any AdBlueⓇ? A small spill should be diluted with water, mopped up and flushed down a drain. In the event of a larger spill, contain it using sand or a spill kit and dispose of it appropriately. It’s not necessary to wear protective clothing when dispensing AdBlueⓇ but be mindful that it can cause stains to clothes or upholstery.
Why is it important to keep AdBlueⓇ clean? Any contamination can cause damage to the SCR catalyst and limit its effectiveness. When dispensing AdBlueⓇ, never add it to the diesel tank, always put it directly in its dedicated tank and make sure the dispensing device is clean of any dirt or grime.
What should I do if I put diesel in the AdBlueⓇ tank or vice versa? The AdBlueⓇ tank is easy to recognise as it has a blue cap or AdBlueⓇ label on it. However, as its often fitted near the diesel cap there are often cases of the two being mixed up. In the event of either case, do not switch on your engine! If you have put AdBlueⓇ in your diesel tank, you should empty the whole tank and discard the mixture. If diesel is added to the AdBlueⓇ tank you will need to contact your vehicle manufacturer as running the engine with polluted AdBlueⓇ will disrupt the SCR system.