Honda Civic III, AG/AH/AK/AN (USA / CAN)

Automatic transmission fluid capacity & service interval

Honda Civic III, AG/AH/AK/AN (USA / CAN) requires automatic transmission fluid with a capacity range of 2,8 to 5,4 liters. Service intervals consist of 15000 miles/15 months and 45000 miles/45 months. The data covers 4 configurations.

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

TypeSpecifications
Civic III Si (1985-1987)
  • Use: Normal
  • Capacity 5,4 liter (Initial fill)
  • Capacity 2,8 liter (Service fill)
  • Change 45000 miles/ 45 months
  • Code: 3/1
Civic III Si (1985-1987)
  • Use: First change only
  • Capacity 5,4 liter (Initial fill)
  • Capacity 2,8 liter (Service fill)
  • Change 15000 miles/ 15 months
  • Code: 3/1
Civic III DX, S (1984-1987)
  • Use: Normal
  • Capacity 5,4 liter (Initial fill)
  • Capacity 2,8 liter (Service fill)
  • Change 45000 miles/ 45 months
  • Code: 3/1
Civic III DX, S (1984-1987)
  • Use: First change only
  • Capacity 5,4 liter (Initial fill)
  • Capacity 2,8 liter (Service fill)
  • Change 15000 miles/ 15 months
  • Code: 3/1

Additional Notes

  • The Honda Civic III AG/AH/AK/AN automatic transaxle carries an initial fill capacity of 5.4 liters, which reflects the total fluid volume required when the unit is dry, such as after a full overhaul or replacement.
  • The service fill capacity of 2.8 liters is notably lower than the initial fill, representing only the fluid displaced during a routine drain-and-refill, since a portion of the fluid remains in the torque converter and passages that do not fully drain.
  • Under normal use conditions, the DX and S trims specify an automatic transaxle fluid change interval of 45,000 miles or 45 months, whichever comes first.
  • A separate first-change-only interval of 15,000 miles or 15 months applies to the DX and S trims, with the same 2.8-liter service fill capacity, indicating an accelerated initial service to remove break-in contaminants from the new or freshly serviced transaxle.
  • The Si trim, available from 1985-1987, shares the identical 5.4-liter initial fill and 2.8-liter service fill capacities as the DX and S trims across both the normal and first-change-only intervals.
  • The Si trim's normal-use change interval of 45,000 miles or 45 months matches the DX and S specification exactly, as does the first-change-only interval of 15,000 miles or 15 months.
  • The DX and S trims cover the full 1984-1987 model year span, while the Si trim entered one year later, beginning with the 1985 model year.

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