Mazda Millennia, TA (USA / CAN)

Automatic transmission fluid capacity & service interval

Mazda Millennia TA (USA / CAN) automatic transmission fluid capacity ranges from 7,4 to 8,4 liters. The data covers 4 configurations.

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

TypeSpecifications
Millenia 2.3 Miller Cycle V6 DOHC (2001-2002)
  • Use: Normal
  • Capacity 7,4 liter
  • Code: 4/1
Millenia 2.5 V6 24V (2001-2002)
  • Use: Normal
  • Capacity 8 liter
  • Code: 4/1
Millenia 2.3 Miller Cycle V6 DOHC (1999-2001)
  • Use: Normal
  • Capacity 7,4-7,8 liter
  • Code: 4/1
Millenia 2.5 V6 24V (1999-2001)
  • Use: Normal
  • Capacity 8-8,4 liter
  • Code: 4/1

Additional Notes

  • The Mazda Millennia TA automatic transaxle fluid capacities differ between the 2.3-liter Miller Cycle V6 and the 2.5-liter V6 24V engine configurations, with the larger-displacement engine requiring noticeably more fluid across all listed model years.
  • For the 2.3 Miller Cycle V6 DOHC covering 1999-2001, the automatic transaxle capacity is listed as a range of 7.4-7.8 liters, while the 2001-2002 specification for the same engine narrows to a fixed value of 7.4 liters.
  • A capacity expressed as a range, such as the 7.4-7.8 liters noted for the 1999-2001 2.3-liter variant, typically reflects variation between a partial service fill and a full overhaul or dry fill, where the lower figure represents a fluid change and the higher figure accounts for a complete drain including the torque converter.
  • The 2.5 V6 24V for 1999-2001 carries a transaxle capacity range of 8.0-8.4 liters, and like the 2.3-liter pairing, the 2001-2002 specification for the same engine settles at the lower bound of 8.0 liters as a fixed value.
  • The shift from a capacity range to a single fixed value between the 1999-2001 and 2001-2002 specifications applies to both engine variants, with each later entry aligning to the minimum of the earlier range.
  • All four rows are designated for normal use conditions, meaning none of the listed capacities are associated with severe-duty service intervals or alternative operating environments.
  • The 2.5-liter V6 24V transaxle holds approximately 0.6 liters more fluid than the 2.3-liter Miller Cycle V6 transaxle when comparing the fixed 2001-2002 values of 8.0 liters versus 7.4 liters respectively.

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