Porsche 911, 997 (USA)

Manual transmission fluid capacity & service interval

Porsche 911, 997 (USA) manual transmission fluid capacity ranges from 2,6 to 3,3 liters. Service intervals occur every 60000 miles or 72 months. The data covers 5 configurations.

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

TypeSpecifications
911 GT3 RS 4.0 (2011-2011)
  • Use: Normal
  • Capacity 3,3 liter
  • Change 60000 miles/ 72 months
  • Code: G97.92 6/1
911 Carrera (2005-2008)
  • Use: Normal
  • Capacity 2,9 liter (Dry fill)
  • Capacity 2,6 liter (Service fill)
  • Change 60000 miles/ 72 months
  • Code: G97.01 / G97.31 6/1
911 Carrera 4 (2005-2008)
  • Use: Normal
  • Capacity 2,9 liter (Dry fill)
  • Capacity 2,6 liter (Service fill)
  • Change 60000 miles/ 72 months
  • Code: G97.01 / G97.31 6/1
911 Carrera 4S (2005-2008)
  • Use: Normal
  • Capacity 2,9 liter (Dry fill)
  • Capacity 2,6 liter (Service fill)
  • Change 60000 miles/ 72 months
  • Code: G97.01 / G97.31 6/1
911 Carrera S (2004-2008)
  • Use: Normal
  • Capacity 2,9 liter (Dry fill)
  • Capacity 2,6 liter (Service fill)
  • Change 60000 miles/ 72 months
  • Code: G97.01 / G97.31 6/1

Additional Notes

  • The Porsche 911 997 (USA) manual transaxle carries two distinct capacity figures across most configurations: a dry fill of 2.9 liters and a service fill of 2.6 liters. The dry fill applies when the unit is completely empty, such as after a full rebuild or replacement, while the service fill reflects the smaller volume needed when residual fluid remains in the housing during a routine drain and refill.
  • The 0.3-liter difference between the dry and service fill capacities in the 911 Carrera, Carrera 4, Carrera 4S, and Carrera S transaxles is a practical consideration during maintenance, as overfilling to the dry fill volume during a service interval would exceed the correct level.
  • The 911 Carrera, Carrera 4, Carrera 4S, and Carrera S all share identical manual transaxle capacities and change intervals across their 2005-2008 model years, indicating a common gearbox unit across those variants despite differences in drivetrain layout between rear-wheel-drive and all-wheel-drive configurations.
  • The 911 Carrera S carries a model year range beginning in 2004, one year earlier than the Carrera, Carrera 4, and Carrera 4S variants, which all begin in 2005, while sharing the same 2.9-liter dry fill, 2.6-liter service fill, and 60,000-mile/72-month interval.
  • The 911 GT3 RS 4.0 lists a single capacity figure of 3.3 liters with no separate dry and service fill distinction, which is notably higher than the 2.9-liter dry fill specified for the Carrera-series transaxles, reflecting the different gearbox unit fitted to the GT3 RS 4.0.
  • All configurations across the 2004-2011 span share the same change interval of 60,000 miles or 72 months under normal use conditions, meaning the interval is structured around whichever threshold is reached first.

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