Mazda CX-9, TB (USA / CAN)

Differential fluid capacity & service interval

Mazda CX-9, TB (USA / CAN) differential fluid capacity is 1 liter. Service intervals include 28100 miles and 30000 miles. The data covers 12 configurations.

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

TypeSpecifications
  • CX-9 3.7 V6 AWD (CAN) (2012-2015)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-9 3.7 V6 AWD (CAN) (2012-2015)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 30000 miles
  • CX-9 3.7 V6 AWD (USA) (2012-2015)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-9 3.7 V6 AWD (USA) (2012-2015)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 30000 miles
  • CX-9 3.7 V6 AWD (CAN) (2007-2012)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-9 3.7 V6 AWD (CAN) (2007-2012)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 28100 miles
  • CX-9 3.7 V6 AWD (USA) (2007-2012)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-9 3.7 V6 AWD (USA) (2007-2012)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 28100 miles
  • CX-9 3.5 V6 AWD (CAN) (2006-2007)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-9 3.5 V6 AWD (CAN) (2006-2007)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 28100 miles
  • CX-9 3.5 V6 AWD (USA) (2006-2007)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-9 3.5 V6 AWD (USA) (2006-2007)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 28100 miles

Additional Notes

  • The Mazda CX-9 TB rear differential holds 1 liter of fluid across all AWD configurations covered in the 2006-2015 model range, spanning both the 3.5 V6 and 3.7 V6 engines. A 1-liter capacity is typical of a compact rear differential unit, consistent with the relatively small housing used in crossover-based AWD systems.
  • No interval is listed for normal use conditions across any configuration. A change interval appears only under severe use, meaning the fluid is treated as a lifetime fill under normal operating conditions.
  • Under severe use, the 3.5 V6 AWD configurations for both the USA and CAN markets share an identical 28,100-mile change interval for the 2006-2007 model years.
  • The 3.7 V6 AWD configurations covering 2007-2012 also carry a 28,100-mile severe-use interval, matching the figure established for the earlier 3.5 V6 generation.
  • For the 3.7 V6 AWD in both USA and CAN markets, the severe-use interval increases to 30,000 miles for the 2012-2015 model years, a change from the 28,100-mile figure applied to the same engine in the 2007-2012 period.
  • The 28,100-mile figure used in earlier configurations is a rounded metric conversion, equivalent to approximately 45,000 kilometers, which is a common service interval increment in markets where specifications originate in metric units.
  • The rear differential capacity of 1 liter remains unchanged between the 3.5 V6 and 3.7 V6 engine variants, indicating the rear differential housing was not revised when the engine was updated.
  • USA and CAN market specifications are identical in both capacity and severe-use interval for every corresponding configuration, with no market-specific variation present across the 2006-2015 range.

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