What size are the AdBlue® tanks on diesel vehicles?
Do all diesel models have the same size tanks?
The size of the AdBlue® tank depends on the diesel car’s engine. In general, vehicle manufacturers design the tanks so that a full tank will enable the average user to continue driving until his or her annual service. AdBlue® consumption is roughly proportional to mileage and depends on several additional factors such as the type of driving, the ambient temperature or the type of journey. If you make longer journeys, your AdBlue® consumption will be higher. The same will apply if you have a tendency to put your foot down or drive at higher engine speeds.
Which diesel models consume the most AdBlue®?
Models with powerful engines, such as SUVs, guzzle the most AdBlue®. AdBlue® consumption is closely related to diesel consumption However, this does not fully reflect the facts, since AdBlue® acts on nitrogen oxides (NOx) produced by fuel combustion. Assuming that the combustion of one litre of diesel always produces the same quantity of NOx, the same quantity of AdBlue® would be needed for each litre of diesel consumed. However, this assumption is not always correct because NOx production is highly dependent on the temperature of the engine. For example, few nitrogen oxides are produced when starting the engine from cold, and therefore only a little AdBlue® is consumed. In conclusion, we can assume that AdBlue® consumption is proportional to diesel consumption for normal driving in non-extreme climatic conditions.