Case - IH JXU Maxxima

Coolant capacity & service interval

Case IH JXU Maxxima coolant capacity ranges from 14 to 16 liters. Service intervals include checks every 10 hours and changes every 1200 hours or 24 months. The data covers 8 configurations.

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

TypeSpecifications
JX1070U Maxxima (2005-2008)
  • Use: Normal
  • Capacity 14 liter
  • Capacity 16 liter (+ cabin)
  • Check 10 hours
  • Change 1200 hours/ 24 months
JX1080U Maxxima (2005-2008)
  • Use: Normal
  • Capacity 14 liter
  • Capacity 16 liter (+ cabin)
  • Check 10 hours
  • Change 1200 hours/ 24 months
JX1090U Maxxima (2005-2008)
  • Use: Normal
  • Capacity 14 liter
  • Capacity 16 liter (+ cabin)
  • Check 10 hours
  • Change 1200 hours/ 24 months
JX1100U Maxxima (2005-2008)
  • Use: Normal
  • Capacity 14 liter
  • Capacity 16 liter (+ cabin)
  • Check 10 hours
  • Change 1200 hours/ 24 months
JX100U Maxxima (2003-2008)
  • Use: Normal
  • Capacity 14 liter
  • Capacity 16 liter (+ cabin)
  • Check 10 hours
  • Change 1200 hours
JX70U Maxxima (2003-2008)
  • Use: Normal
  • Capacity 14 liter
  • Capacity 16 liter (+ cabin)
  • Check 10 hours
  • Change 1200 hours
JX80U Maxxima (2003-2008)
  • Use: Normal
  • Capacity 14 liter
  • Capacity 16 liter (+ cabin)
  • Check 10 hours
  • Change 1200 hours
JX90U Maxxima (2003-2008)
  • Use: Normal
  • Capacity 14 liter
  • Capacity 16 liter (+ cabin)
  • Check 10 hours
  • Change 1200 hours

Additional Notes

  • The Case IH JXU Maxxima cooling system holds 14 liters as the base capacity across all models in the lineup, covering the JX70U, JX80U, JX90U, JX100U, JX1070U, JX1080U, JX1090U, and JX1100U variants.
  • When a cab unit is fitted, the cooling system capacity rises to 16 liters across all listed models. The additional 2 liters accounts for the coolant volume required to circulate through the cabin heating circuit.
  • A coolant level check interval of 10 hours applies to all models in the lineup under normal use conditions. In agricultural equipment, a 10-hour check interval reflects the high thermal and operational demands placed on the cooling system during field work.
  • The JX70U, JX80U, JX90U, and JX100U Maxxima models, covering 2003-2008, specify a coolant change interval of 1200 hours with no calendar-based limit alongside it.
  • The JX1070U, JX1080U, JX1090U, and JX1100U Maxxima models, introduced from 2005, carry a dual change interval of 1200 hours or 24 months, whichever comes first. The addition of a calendar-based limit means the coolant is replaced within two years regardless of accumulated engine hours, which is relevant for machines with lower annual usage.
  • The 1200-hour change interval is consistent across all eight models despite differences in model designation and production year range, indicating a uniform coolant service life specification for the JXU Maxxima cooling system under normal operating conditions.
  • The split between the earlier JX70U-JX100U group and the later JX1070U-JX1100U group reflects a generational difference in how the change interval is expressed, with the newer series adding the 24-month calendar threshold to the existing 1200-hour figure.

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