Acura RDX, TB1, TB2 (USA / CAN)

Automatic transmission fluid capacity & service interval

Acura RDX, TB1, TB2 (USA / CAN) models require automatic transmission fluid with a capacity range of 2,8 to 8,3 liters. The data covers 4 configurations.

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

TypeSpecifications
RDX 2.3 Turbo (2011-2012)
  • Use: Normal
  • Capacity 8,3 liter (Dry fill)
  • Capacity 2,8 liter (Service fill)
  • Code: 5/1
RDX 2.3 Turbo SH-AWD (2011-2012)
  • Use: Normal
  • Capacity 7,8 liter (Dry fill)
  • Capacity 2,9 liter (Service fill)
  • Code: 5/1
RDX 2.3 Turbo (2007-2010)
  • Use: Normal
  • Capacity 7,7-8,3 liter (Dry fill)
  • Capacity 2,8-3,3 liter (Service fill)
  • Code: 5/1
RDX 2.3 Turbo SH-AWD (2007-2010)
  • Use: Normal
  • Capacity 7,8 liter (Dry fill)
  • Capacity 2,9 liter (Service fill)
  • Code: 5/1

Additional Notes

  • The Acura RDX TB1/TB2 2.3 Turbo (non-SH-AWD) shows a dry fill range of 7.7–8.3 liters for the 2007-2010 model years, reflecting the total fluid volume required when filling a completely drained or rebuilt transmission from empty.
  • For the same 2007-2010 non-SH-AWD configuration, the service fill capacity is listed as a range of 2.8–3.3 liters, which represents the partial volume exchanged during a routine fluid change where residual fluid remains in the torque converter and passages.
  • The 2011-2012 non-SH-AWD variant carries a fixed dry fill value of 8.3 liters rather than a range, indicating a more precisely defined total capacity compared to the earlier model years.
  • The 2011-2012 non-SH-AWD service fill narrows to a fixed 2.8 liters, compared to the 2.8–3.3 liter range seen in 2007-2010, suggesting a tighter specification for routine fluid replacement in the later production years.
  • The SH-AWD configuration carries a dry fill capacity of 7.8 liters across both the 2007-2010 and 2011-2012 model year groups, with no variation between those two periods.
  • The SH-AWD service fill of 2.9 liters also remains unchanged across 2007-2012, meaning the routine fluid exchange volume stayed consistent regardless of model year within the SH-AWD drivetrain variant.
  • Comparing the two drivetrain configurations for 2007-2010, the non-SH-AWD dry fill starts at a lower bound of 7.7 liters while the SH-AWD dry fill is a fixed 7.8 liters, placing the SH-AWD value within the non-SH-AWD range rather than clearly above or below it.
  • All four configurations across the 2007-2012 span are specified under normal use conditions, meaning the listed capacities and intervals apply to standard operating environments rather than severe-duty cycles.

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