McCormick D-Max

Differential fluid capacity & service interval

McCormick D-Max uses differential fluid with a capacity of 7,6 liters. Service intervals include 150 hours or 18 months/1500 hours. The data covers 4 configurations.

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

TypeSpecifications
  • D-115 MAX, FPT NEF4.5-TA (2015-2019)
  • Front
  • Use: Normal
  • Capacity 7,6 liter
  • Change 18 months/ 1500 hours
  • D-115 MAX, FPT NEF4.5-TA (2015-2019)
  • Front
  • Use: Initial service
  • Capacity 7,6 liter
  • Change 150 hours
  • D-125 MAX, FPT NEF4.5-TA (2015-2019)
  • Front
  • Use: Normal
  • Capacity 7,6 liter
  • Change 18 months/ 1500 hours
  • D-125 MAX, FPT NEF4.5-TA (2015-2019)
  • Front
  • Use: Initial service
  • Capacity 7,6 liter
  • Change 150 hours

Additional Notes

  • The front differential fluid capacity across all listed configurations of the McCormick D-Max is 7.6 liters, applying equally to both the D-115 MAX and D-125 MAX variants equipped with the FPT NEF4.5-TA engine.
  • Under normal use conditions, the front differential fluid change interval is set at 18 months or 1,500 hours, whichever comes first, for both the D-115 MAX and D-125 MAX from 2015-2019.
  • An initial service interval of 150 hours applies to the front differential on both the D-115 MAX and D-125 MAX, representing a significantly earlier first fluid change compared to the subsequent normal-use interval of 1,500 hours.
  • The 150-hour initial service interval is notably one-tenth the length of the standard 1,500-hour normal interval, reflecting the common practice of removing break-in contaminants from a newly commissioned drivetrain component.
  • The front differential fluid capacity of 7.6 liters remains consistent across both the D-115 MAX and D-125 MAX for the 2015-2019 model years, indicating no capacity variation between these two power variants sharing the same FPT NEF4.5-TA engine platform.

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