Jeep MB / GPW

Differential fluid capacity & service interval

Jeep MB / GPW differential fluid capacity is 1,2 liters. Service intervals occur every 10000 km. Data covers 4 configurations.

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

TypeSpecifications
  • Ford Model GPW (1941-1945)
  • Front
  • Use: Normal
  • Capacity 1,2 liter
  • Change 10000 km
  • Ford Model GPW (1941-1945)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Change 10000 km
  • Willys- Overland model MB (1941-1945)
  • Front
  • Use: Normal
  • Capacity 1,2 liter
  • Change 10000 km
  • Willys- Overland model MB (1941-1945)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Change 10000 km

Additional Notes

  • Both the Jeep MB and GPW carry identical differential fluid capacities of 1.2 liters per unit, applying equally to the front and rear differentials on each variant.
  • A 1.2-liter capacity figure in a differential context represents a service fill volume, meaning the amount of fluid required during a routine drain-and-refill rather than a full housing overhaul with component removal.
  • The front and rear differentials share the same 1.2-liter capacity across both the Ford Model GPW and the Willys-Overland Model MB, indicating no asymmetry between axle positions in fluid volume requirements.
  • The specified change interval for all four differential positions across both variants is 10,000 km, applied under normal use conditions.
  • Normal use conditions tied to the 10,000 km interval reflect standard operating demands, as opposed to severe-duty cycles that would typically call for shortened drain intervals in other vehicle specifications.
  • The Ford Model GPW and the Willys-Overland Model MB, both produced across 1941-1945, share fully uniform differential fluid specifications, with no variation in capacity or change interval between the two manufacturers' versions.

Other Systems