Nissan Primastar, X82 (EU)

Additional Notes

• All four Nissan Primastar X82 2.0 dCi variants covered here are Euro 6d-compliant diesel engines, a standard that mandates the use of a selective catalytic reduction (SCR) system to reduce nitrogen oxide emissions. AdBlue, also known as diesel exhaust fluid (DEF), is the aqueous urea solution injected into the exhaust stream to enable that chemical reduction process.
• The AdBlue tank capacity across all four engine variants — rated at 81 kW, 96 kW, 110 kW, and 125 kW — is specified as a range of 20 to 24.7 liters. A range rather than a fixed value reflects the difference between a low-level refill and a full tank capacity, meaning the lower figure represents a typical top-up volume and the upper figure represents the maximum the tank can hold.
• The 20–24.7 liter capacity range is consistent across all power outputs of the 2.0 dCi engine family in the Primastar X82, indicating a shared tank design regardless of the output differences between the 81 kW, 96 kW, 110 kW, and 125 kW configurations.
• All specifications are listed under normal use conditions. In the context of AdBlue systems, normal use reflects standard on-road driving cycles, as opposed to severe duty cycles that may involve higher exhaust temperatures or more frequent regeneration events affecting fluid consumption rates.
• AdBlue consumption in SCR-equipped diesel vehicles is generally proportional to fuel consumption, typically falling between 3% and 6% of diesel used. A tank capacity in the 20–24.7 liter range is therefore sized to allow extended intervals between refills under normal operating conditions, reducing the frequency of AdBlue servicing relative to routine maintenance stops.