Case - IH Maxxum CVX

AdBlue (DEF) capacity & service interval

Case - IH Maxxum CVX requires AdBlue (DEF) with a capacity range of 30,9 to 39,5 liters. The data covers 10 configurations.

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

TypeSpecifications
Maxxum 115 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 30,9 liter
Maxxum 125 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 30,9 liter
Maxxum 135 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 30,9 liter
Maxxum 145 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 30,9 liter
Maxxum 150 CVX Stage V (2020- )
  • Use: Normal
  • Capacity 30,9 liter
Maxxum 115 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 39,5 liter
Maxxum 125 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 39,5 liter
Maxxum 135 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 39,5 liter
Maxxum 145 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 39,5 liter
Maxxum 150 CVX Tier 4b/Stage IV (2016-2020)
  • Use: Normal
  • Capacity 39,5 liter

Additional Notes

  • The Case IH Maxxum CVX AdBlue system is a selective catalytic reduction (SCR) setup, meaning AdBlue is injected into the exhaust stream to convert nitrogen oxides into nitrogen and water vapor.
  • Across all five power variants in the Tier 4b/Stage IV emission standard, covering the 115, 125, 135, 145, and 150 CVX models from 2016-2020, the SCR tank capacity is uniformly 39.5 liters.
  • All five Stage V variants carry a reduced SCR tank capacity of 30.9 liters, a figure consistent across the 115, 125, 135, 145, and 150 CVX configurations starting from 2020.
  • The capacity difference between emission standards is 8.6 liters, with Tier 4b/Stage IV units holding the larger 39.5-liter volume compared to the 30.9-liter figure on Stage V units.
  • A 30.9-liter SCR tank on the Stage V models represents a meaningful reduction in fluid reservoir size, which in practical terms affects how frequently AdBlue refills are needed relative to the larger 39.5-liter Tier 4b/Stage IV tank.
  • All capacity values listed apply under normal use conditions, meaning the 30.9-liter and 39.5-liter figures are not adjusted for severe-duty or other alternative operating classifications within these specifications.
  • The power rating of a given Maxxum CVX variant, whether 115, 125, 135, 145, or 150 horsepower, has no bearing on the SCR tank capacity within the same emission standard generation, as all share identical figures.

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