Porsche 718 Boxster 2021–2026 — technical service bulletin
Bulletin No. 03-25 · NHTSA communication 11015153 · issued Mar 1, 2025
Technical service bulletin
communication type
Engine
component
2021–2026
model years
60
vehicle entries
Official summary
Manufacturer's Certificate - Overview of Approved Porsche C40 Engine Oils (03/25)
Vehicles covered
- 2021 Porsche 718 Boxster
- 2022 Porsche 718 Boxster
- 2023 Porsche 718 Boxster
- 2025 Porsche 718 Boxster
- 2021 Porsche 718 Boxster GTS
- 2022 Porsche 718 Boxster GTS
- 2023 Porsche 718 Boxster GTS
- 2024 Porsche 718 Boxster GTS
- 2021 Porsche 718 Boxster S
- 2022 Porsche 718 Boxster S
- 2023 Porsche 718 Boxster S
- 2024 Porsche 718 Boxster S
- 2021 Porsche 718 Cayman
- 2022 Porsche 718 Cayman
- 2023 Porsche 718 Cayman
- 2026 Porsche 718 Cayman
- 2023 Porsche 718 Cayman GT4
- 2024 Porsche 718 Cayman GT4
- 2024 Porsche 718 Cayman GT4 RS
- 2022 Porsche 718 Cayman GTS
- 2023 Porsche 718 Cayman GTS
- 2024 Porsche 718 Cayman GTS
- 2021 Porsche 718 Cayman S
- 2022 Porsche 718 Cayman S
- 2023 Porsche 718 Cayman S
- 2021 Porsche 718 Spyder
- 2022 Porsche 718 Spyder
- 2023 Porsche 718 Spyder
- 2024 Porsche 718 Spyder
- 2025 Porsche 718 Spyder
- 2024 Porsche 718 Spyder RS
- 2021 Porsche 911
- 2022 Porsche 911
- 2023 Porsche 911
- 2024 Porsche 911
- 2025 Porsche 911
- 2022 Porsche 911 4S
- 2021 Porsche 911 Carrera
- 2022 Porsche 911 Carrera
- 2023 Porsche 911 Carrera
- 2024 Porsche 911 Carrera
- 2025 Porsche 911 Carrera
- 2023 Porsche 911 Carrera 4
- 2022 Porsche 911 Carrera 4 GTS
- 2023 Porsche 911 Carrera 4 GTS
- 2023 Porsche 911 Carrera 4S
- 2022 Porsche 911 Carrera GTS
- 2023 Porsche 911 Carrera GTS
- 2024 Porsche 911 Carrera GTS
- 2021 Porsche 911 Carrera S
- 2023 Porsche 911 Carrera S
- 2023 Porsche 911 Carrera T
- 2024 Porsche 911 Carrera T
- 2023 Porsche 911 Dakar
- 2024 Porsche 911 Dakar
- 2021 Porsche 911 GT3
- 2022 Porsche 911 GT3
- 2023 Porsche 911 GT3
- 2024 Porsche 911 GT3
- 2025 Porsche 911 GT3
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.