Case - IH Optum CVX

AdBlue (DEF) capacity & service interval

The Case - IH Optum CVX uses AdBlue (DEF) fluid with a capacity of 96 liters. Four configurations of this model are covered.

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

TypeSpecifications
Optum 270 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 96 liter
Optum 300 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 96 liter
Optum 270 CVX Tier 4b/Stage IV (2018- )
  • Use: Normal
  • Capacity 96 liter
Optum 300 CVX Tier 4b/Stage IV (2016- )
  • Use: Normal
  • Capacity 96 liter

Additional Notes

  • All Optum CVX configurations from 2016-2020 employ selective catalytic reduction systems that require AdBlue as the reducing agent for nitrogen oxide emissions control.
  • The 96-liter tank capacity remains consistent across both the Optum 270 CVX and Optum 300 CVX models, regardless of emission standard generation.
  • Optum 300 CVX Tier 4b/Stage IV models began production in 2016, establishing the earliest adoption of SCR technology within the specified model range.
  • Stage V emission standards introduced in 2020 maintained the same 96-liter AdBlue capacity as earlier Tier 4b/Stage IV variants, indicating no tank expansion accompanied the regulatory transition.
  • Normal use conditions apply uniformly across all listed configurations, suggesting AdBlue consumption rates and service intervals follow standard agricultural operating parameters for the Optum CVX line.

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