Porsche 718 Boxster 2021 — technical service bulletin
Bulletin No. 16-25 · NHTSA communication 11020141 · issued Jun 4, 2025
Technical service bulletin
communication type
Engine
component
2021
model years
50
vehicle entries
Official summary
Manufacturers certificate for an Overview of Approved Porsche C30 Engine Oils. The vehicles affected are cars that use engine C20 oil as of MY 2021.
Vehicles covered
- 2021 Porsche 718 Boxster
- 2021 Porsche 718 Boxster GTS
- 2021 Porsche 718 Boxster S
- 2021 Porsche 718 Cayman
- 2021 Porsche 718 Cayman S
- 2021 Porsche 718 Spyder
- 2021 Porsche 911
- 2021 Porsche 911 Carrera
- 2021 Porsche 911 Carrera S
- 2021 Porsche 911 GT3
- 2021 Porsche 911 Targa 4
- 2021 Porsche 911 Turbo
- 2021 Porsche 911 Turbo S
- 2021 Porsche Baby Seat Latch
- 2021 Porsche Boxster
- 2021 Porsche Cayenne
- 2021 Porsche Cayenne E-Hybrid
- 2021 Porsche Cayenne GT
- 2021 Porsche Cayenne GTS
- 2021 Porsche Cayenne S
- 2021 Porsche Cayenne Turbo S E-Hybrid
- 2021 Porsche Cayman
- 2021 Porsche Cayman GT4
- 2021 Porsche Cayman GTS
- 2021 Porsche Junior Seat
- 2021 Porsche Macan
- 2021 Porsche Macan GTS
- 2021 Porsche Macan S
- 2021 Porsche Macan Turbo
- 2021 Porsche Panamera
- 2021 Porsche Panamera 4
- 2021 Porsche Panamera 4 E-Hybrid
- 2021 Porsche Panamera 4 Executive
- 2021 Porsche Panamera 4S
- 2021 Porsche Panamera 4S E-Hybrid
- 2021 Porsche Panamera 4S Executive
- 2021 Porsche Panamera 4S Sport Turismo
- 2021 Porsche Panamera GTS
- 2021 Porsche Panamera Turbo S
- 2021 Porsche Panamera Turbo S E-Hybrid
- 2021 Porsche Panamera Turbo S Executiv
- 2021 Porsche Taycan
- 2021 Porsche Taycan 4 Cross Turismo
- 2021 Porsche Taycan 4S
- 2021 Porsche Taycan 4S Cross Turismo
- 2021 Porsche Taycan Cross Turismo
- 2021 Porsche Taycan Turbo
- 2021 Porsche Taycan Turbo Cross Turism
- 2021 Porsche Taycan Turbo S
- 2021 Porsche Taycan Turbo S Cross Turi
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.