McCormick X8 Series

Automatic transmission fluid capacity & service interval

McCormick X8 Series uses automatic transmission fluid with a capacity of 188 liters. Service intervals include checking every 10 hours and changing every 1000 hours or 12 months. The data covers 3 configurations.

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

TypeSpecifications
  • X8.660 VT-Drive (2017-2022)
  • Hydraulic system
  • Use: Normal
  • Capacity 188 liter
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • Code: VT-Drive 1/1
  • X8.670 VT-Drive (2017-2022)
  • Hydraulic system
  • Use: Normal
  • Capacity 188 liter
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • Code: VT-Drive 1/1
  • X8.680 VT-Drive (2017-2022)
  • Hydraulic system
  • Use: Normal
  • Capacity 188 liter
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • Code: VT-Drive 1/1

Additional Notes

  • The McCormick X8 Series transmission and hydraulic system share a combined fluid circuit, meaning the 188-liter capacity figure covers both functions within a single integrated reservoir rather than separate dedicated sumps.
  • A 188-liter fluid capacity is notably large by agricultural transmission standards, reflecting the scale of the X8 Series platform and the volume demands of a combined transmission and hydraulic system in a high-horsepower tractor.
  • The X8.660, X8.670, and X8.680 VT-Drive variants all carry an identical 188-liter capacity, indicating no variation in transmission and hydraulic system volume across the three model designations within the 2017-2022 production span.
  • A fluid level check interval of 10 operating hours is specified under normal use conditions, placing routine inspection on a very frequent cycle relative to the full drain-and-fill interval.
  • The change interval is set at 1000 hours or 12 months under normal use conditions, whichever comes first, meaning calendar time can trigger a fluid change even when the hourly threshold has not been reached.
  • At 188 liters per service event, the annual or 1000-hour fluid change represents a substantial volume replacement, which is consistent with maintaining fluid integrity across a large shared transmission and hydraulic circuit operating under sustained load.

Other Systems