John Deere T series

AdBlue (DEF) capacity & service interval

The John Deere T series uses AdBlue (DEF) fluid with a capacity of 33 liters. The data covers normal use service intervals. There are 4 configurations included in the data.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
T550, Tier 4/Stage IV (2015-2019)
  • Use: Normal
  • Capacity 33 liter
T560, Tier 4/Stage IV (2015-2019)
  • Use: Normal
  • Capacity 33 liter
T660, Tier 4/Stage IV (2015-2019)
  • Use: Normal
  • Capacity 33 liter
T670, Tier 4/Stage IV (2015-2019)
  • Use: Normal
  • Capacity 33 liter

Additional Notes

  • The John Deere T Series combines Tier 4/Stage IV emissions compliance with a selective catalytic reduction system, which uses AdBlue (DEF) injected into the exhaust stream to reduce nitrogen oxide emissions.
  • All four configurations covered — the T550, T560, T660, and T670 — share an identical AdBlue tank capacity of 33 liters across the 2015-2019 model years.
  • A 33-liter tank represents a substantial reservoir by agricultural machinery standards, reflecting the extended field operation cycles typical of combine harvesters where frequent refilling would interrupt harvesting efficiency.
  • The capacity figure of 33 liters applies under normal use conditions across every listed model, indicating no variation between the smaller T550 and T560 configurations and the larger T660 and T670 configurations.
  • SCR-based emissions systems consume AdBlue at a rate proportional to engine load and fuel consumption, meaning a 33-liter fill will cover varying durations depending on operating intensity during a given harvest session.

Other Systems