Mazda 6, GH/GZ (USA / CAN)

Manual transmission fluid capacity & service interval

The Mazda 6, GH/GZ (USA / CAN) manual transmission fluid capacity is 2.85 liters. The data covers 6 configurations.

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

TypeSpecifications
6 2.5 (CAN) (2010-2013)
  • Use: Normal
  • Capacity 2,85 liter
  • Code: 6/1
6 2.5 (USA) (2010-2013)
  • Use: Normal
  • Capacity 2,85 liter
  • Code: 6/1
6 2.5 (CAN) (2008-2010)
  • Use: Normal
  • Capacity 2,85 liter
  • Code: 6/1
6 2.5 (USA) (2008-2010)
  • Use: Normal
  • Capacity 2,85 liter
  • Code: 6/1
6 3.7 (CAN) (2008-2013)
  • Use: Normal
  • Capacity 2,85 liter
  • Code: 6/1
6 3.7 (USA) (2008-2013)
  • Use: Normal
  • Capacity 2,85 liter
  • Code: 6/1

Additional Notes

  • The Mazda 6 GH/GZ manual transaxle fluid capacity is 2.85 liters across all listed configurations, covering both the 2.5-liter and 3.7-liter engines in Canadian and US market variants for the 2008-2013 model years.
  • A transaxle combines the transmission and axle differential into a single housing, which is why the fluid capacity figure applies to the entire integrated unit rather than a standalone gearbox.
  • The 2.85-liter figure represents a service fill capacity, meaning the amount of fluid required when draining and refilling during routine maintenance, as opposed to a larger overhaul or dry-fill volume that would account for fluid retained in additional components.
  • All six configurations carry a normal use condition designation, meaning the 2.85-liter capacity applies under standard driving circumstances rather than severe-duty cycles such as frequent towing, extreme temperatures, or sustained high-load operation.
  • The 2.5-liter engine configurations are split across two overlapping year ranges, 2008-2010 and 2010-2013, for both the Canadian and US markets, yet the manual transaxle fluid capacity remains at 2.85 liters across both ranges, indicating no change in the transaxle design between those periods.
  • The 3.7-liter engine configurations span the full 2008-2013 range as a single entry for each market, while the 2.5-liter engine is represented by two separate year-range entries per market, reflecting a distinction in how the specifications are recorded rather than a difference in fluid capacity.

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