Jeep Wrangler / CJ-7 / CJ-8, YJ (EU)

Manual transmission fluid capacity & service interval

Jeep Wrangler / CJ-7 / CJ-8, YJ (EU) manual transmission fluid capacity ranges from 3,2 to 3,3 liters. Service intervals include checks at 7500 km and 12000 km/6 months, and changes at 48000 km, 60000 km, and 120000 km/60 months. The data covers 5 configurations.

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

TypeSpecifications
Wrangler 2.5 (1994-1997)
  • Use: Normal
  • Capacity 3,2 liter
  • Check 12000 km/ 6 months
  • Change 120000 km/ 60 months
  • Code: Aisin Warner 5/1
Wrangler 4.0 (1994-1997)
  • Use: Normal
  • Capacity 3,2 liter
  • Check 12000 km/ 6 months
  • Change 120000 km/ 60 months
  • Code: Aisin Warner 5/1
Wrangler 2.5 (1987-1993)
  • Use: Normal
  • Capacity 3,3 liter
  • Check 12000 km/ 6 months
  • Change 48000 km
  • Code: 5/1
Wrangler 4.2 (1987-1993)
  • Use: Normal
  • Capacity 3,3 liter
  • Check 12000 km/ 6 months
  • Change 48000 km
  • Code: 5/1
CJ-7 / CJ-8 (1985-1987)
  • Use: Normal
  • Capacity 3,3 liter
  • Check 7500 km
  • Change 60000 km
  • Code: 5/1

Additional Notes

  • The Jeep CJ-7 / CJ-8 (1985-1987) carries a manual transmission fluid capacity of 3.3 liters, which is a service fill figure representing the amount needed when draining and refilling the unit during routine maintenance rather than a full overhaul rebuild quantity.
  • The CJ-7 / CJ-8 fluid check interval is set at 7500 km under normal use conditions, a notably shorter inspection cycle compared to the Wrangler variants that followed in the same specification range.
  • Both the Wrangler 2.5 and 4.2 engines in the 1987-1993 period share an identical 3.3-liter manual transmission fluid capacity, placing them in alignment with the earlier CJ-series fill volume.
  • The 1987-1993 Wrangler 2.5 and 4.2 variants carry a fluid change interval of 48000 km under normal use, with checks scheduled at every 12000 km or 6 months, whichever comes first.
  • Moving into the 1994-1997 model years, the Wrangler 2.5 sees a slight reduction in manual transmission fluid capacity to 3.2 liters, a marginal decrease from the 3.3-liter figure associated with the earlier generation.
  • The Wrangler 4.0 (1994-1997) shares the same 3.2-liter manual transmission fluid capacity as the 2.5-liter variant of the same period, indicating a common transmission unit or sump design across those two engine configurations.
  • For both the Wrangler 2.5 and 4.0 in the 1994-1997 range, the fluid change interval extends significantly to 120000 km or 60 months under normal use conditions, more than doubling the 48000 km interval specified for the 1987-1993 Wrangler models.
  • The 60-month time-based limit paired with the 120000 km distance interval on the 1994-1997 Wrangler variants means that calendar time can trigger a fluid change before the mileage threshold is reached, particularly in lower-mileage usage patterns.

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