Alfa Romeo SZ, RZ, 162 (EU)

Manual transmission fluid capacity & service interval

Alfa Romeo SZ, RZ, and 162 (EU) models require manual transmission fluid with a capacity of 3,1 liters. Service intervals include checks every 20000 km and fluid changes every 40000 km or 24 months. The data covers 2 configurations.

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

TypeSpecifications
Alfa RZ (1992-1994)
  • Use: Normal
  • Capacity 3,1 liter
  • Check 20000 km
  • Change 40000 km/ 24 months
  • Code: 5/1
Alfa SZ (1989-1991)
  • Use: Normal
  • Capacity 3,1 liter
  • Check 20000 km
  • Change 40000 km/ 24 months
  • Code: 5/1

Additional Notes

  • Both the Alfa Romeo RZ (1992-1994) and SZ (1989-1991) use a transaxle-mounted manual transmission, a layout that places the gearbox and final drive in a single unit at the rear axle rather than inline with the engine.
  • The transaxle fluid capacity is 3.1 liters across both variants, a figure that reflects a service fill volume for a combined gearbox and differential housing rather than a separate transmission and axle arrangement.
  • Under normal use conditions, the specified check interval is 20,000 km, meaning the fluid level is to be inspected at that mileage point without necessarily performing a full drain and refill.
  • The change interval under normal use is set at 40,000 km or 24 months, whichever comes first, introducing a time-based limit alongside the distance threshold to account for fluid degradation independent of mileage accumulation.
  • The 3.1-liter capacity is identical between the RZ and SZ despite the two-year gap separating the end of SZ production (1991) and the end of RZ production (1994), indicating no revision to the transaxle unit's fluid volume requirement across the model transition.

Other Systems