ERF E6

Manual transmission fluid capacity & service interval

ERF E6 manual transmission fluid capacity ranges from 7,5 to 8 liters. Service intervals include checks at 16000 km and changes at 100000 km. The data covers 4 configurations.

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

TypeSpecifications
E6.21P (1993-1996)
  • Use: Normal
  • Capacity 8 liter
  • Check 16000 km
  • Change 100000 km
  • Code: Eaton 6109 9/1
E6.21 (1990-1993)
  • Use: Normal
  • Capacity 8 liter
  • Check 16000 km
  • Change 100000 km
  • Code: Eaton 6109 9/1
E6.18 (1986-1993)
  • Use: Normal
  • Capacity 7,5 liter
  • Check 16000 km
  • Change 100000 km
  • Code: Eaton 4106 6/1
E6.18 (1986-1993)
  • Use: Normal
  • Capacity 8 liter
  • Check 16000 km
  • Change 100000 km
  • Code: Eaton 6109 9/1

Additional Notes

  • The ERF E6 manual transmission fluid specifications cover four configurations across the 1986-1996 production span, with the E6.18 representing the earliest variant and the E6.21P the latest.
  • The E6.18 (1986-1993) carries two separate capacity figures of 7.5 liters and 8 liters, which typically reflects a difference between a service top-up fill and a full drain-and-refill overhaul quantity rather than a discrepancy in the data.
  • The E6.21 (1990-1993) and E6.21P (1993-1996) each list a single capacity of 8 liters, aligning with the higher of the two E6.18 values and suggesting a consistent full-fill volume across the later configurations.
  • All four rows share an identical check interval of 16,000 km under normal use conditions, meaning fluid level verification is scheduled at the same frequency regardless of engine variant or model year.
  • The change interval of 100,000 km applies uniformly across all configurations under normal use, placing the ERF E6 manual transmission fluid drain cycle in the range typical of heavy commercial vehicle maintenance schedules of the era.
  • The E6.21P (1993-1996) carries the same 8-liter capacity and 100,000 km change interval as the E6.21 (1990-1993), indicating no revision to manual transmission fluid service requirements between those two variants despite the model designation change.

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