FAQ - Chemicals/AdBlue® : Volvo Construction Equipment

Frequent Asked Questions (FAQ)

  1 What is AdBlue?
The non-toxic solution is based on 32.5% urea and 67.5% deionized water. Urea is a compound of nitrogen that turns to ammonia when heated. The fluid is known as AdBlue in Europe/Asia and Diesel Exhaust Fluid (DEF) in North America.
  2 Why is AdBlue needed?
It is a reactant key to the selective catalytic reduction (SCR) process used in Stage IV engines.
  3 Where is AdBlue available from?
The AdBlue solution can be ordered via the Volvo dealer network where it can either be collected or delivered directly to the job site.
  4 How is AdBlue packaged?
AdBlue is delivered in sealed, dedicated containers including cans and drums or in bulk to suit individual customer needs.
  5 What happens if you use a low-quality substitute instead of AdBlue?
Using low-quality substitutes could damage the after treatment system and result in reduced torque, speed and eventual machine shutdown. Unnecessary costs and downtime can easily be avoided by using the Volvo approved solution.
  6 How is the quality of AdBlue guaranteed?
The AdBlue solution has high purity requirements defined by ISO 22241-1. This ensures correct manufacturing, testing and handling procedures.
  7 Does low outside temperature affect AdBlue?
AdBlue freezes at -11°C. The SCR system heats the AdBlue tank and supply lines. If the fluid freezes when the machine is not in use, start-up and operation will not be affected. The SCR heating system will defrost the solution back to liquid form without affecting quality.
  8 How should AdBlue be stored and what is the shelf life of the solution?
AdBlue should be stored in a cool, dry and ventilated area away from direct sunlight. Recommended storage temperature is up to 25°C, although short term exposure to higher temperatures will not cause damage. If AdBlue is stored in the recommended way it will last for approximately two years.
  9 Why is it important to use equipment that is dedicated to AdBlue?
Dedicated AdBlue equipment must be used for dispensing and storing the solution to prevent contamination.
 10 Is AdBlue corrosive?
The non-toxic solution is corrosive to certain sensitive metals such as copper.
 11 What is AdBlue consumption?
Approximately between 5% and 7.5% of fuel consumption, depending on the machine type and application.