Mazda RX (EU)

Automatic transmission fluid capacity & service interval

Mazda RX (EU) automatic transmission fluid capacity ranges from 5,5 to 6,2 liters. Service intervals include a check every 6000 km. The data covers 2 configurations.

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

TypeSpecifications
RX-3 (1972-1978)
  • Use: Normal
  • Capacity 5,5 liter
  • Check 6000 km
  • Code: 3/1
RX-2 (1971-1974)
  • Use: Normal
  • Capacity 6,2 liter
  • Check 6000 km
  • Code: 3/1

Additional Notes

  • The Mazda RX-2 automatic transmission carries 6.2 liters of fluid, while the RX-3 automatic transmission holds 5.5 liters, a difference of 0.7 liters between the two models despite both being rotary-engined vehicles from overlapping production periods.
  • A 6.2-liter automatic transmission fluid capacity, as seen in the RX-2 (1971-1974), is consistent with a full-system service fill that accounts for fluid retained in the torque converter, valve body, and transmission pan combined.
  • The RX-3 (1972-1978) automatic transmission fluid capacity of 5.5 liters similarly reflects a total system fill rather than a pan-drop service quantity, which in many transmissions of that era would represent only a fraction of the full volume.
  • Both the RX-2 and RX-3 share a 6,000 km check interval under normal use conditions, meaning fluid level and condition are assessed at that mileage point rather than necessarily replaced at each interval.
  • The use condition specified for both models is normal, meaning the 6,000 km check interval applies to standard driving circumstances rather than elevated-stress operating environments.

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