Porsche Cayman, 981 (EU)

Manual transmission fluid capacity & service interval

Porsche Cayman, 981 (EU) manual transmission fluid capacity ranges from 3 to 3,3 liters. The service interval is 180000 km or 144 months. The data covers 4 configurations.

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

TypeSpecifications
Cayman GT4 (2015-2016)
  • Use: Normal
  • Capacity 3,2-3,3 liter
  • Change 180000 km/ 144 months
  • Code: G81.20 6/1
Cayman (2013-2016)
  • Use: Normal
  • Capacity 3 liter
  • Change 180000 km/ 144 months
  • Code: G81.00 6/1
Cayman GTS (2013-2016)
  • Use: Normal
  • Capacity 3,2 liter
  • Change 180000 km/ 144 months
  • Code: G81.20 6/1
Cayman S (2013-2016)
  • Use: Normal
  • Capacity 3,2 liter
  • Change 180000 km/ 144 months
  • Code: G81.20 6/1

Additional Notes

  • The Porsche Cayman 981 (EU) manual transaxle carries a fluid capacity of 3 liters across the base Cayman variant for the 2013-2016 model years.
  • The Cayman S and Cayman GTS both share a 3.2-liter manual transaxle fluid capacity, placing them above the base model's 3-liter fill volume.
  • The Cayman GT4, produced for 2015-2016, specifies a slightly wider capacity range of 3.2-3.3 liters, reflecting a variable fill tolerance rather than a fixed single value.
  • A variable capacity range, such as the 3.2-3.3 liters listed for the GT4, typically accounts for minor differences in drain completeness or transaxle assembly tolerances during a service fill.
  • All four variants across the 2013-2016 range share an identical change interval of 180,000 km or 144 months, the latter equating to a 12-year time-based limit under normal use conditions.
  • The 180,000 km distance interval is notably long for a manual transmission fluid specification, consistent with modern fully synthetic gear oils that maintain viscosity stability over extended mileage.
  • All rows are designated for normal use conditions, meaning the 180,000 km and 144-month intervals apply specifically within that operating context.
  • The transaxle layout noted across all variants refers to a combined gearbox and differential unit positioned at the rear axle, which is characteristic of mid-engine Porsche platforms and directly informs the fluid capacity figures listed.

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