Porsche 718 2012–2020 — technical service bulletin

Bulletin No. 20-25 · NHTSA communication 11020149 · issued Jun 4, 2025

Technical service bulletin

communication type

Engine

component

2012–2020

model years

vehicle entries

Official summary

Manufacturers certificate for an Overview of Approved Porsche C40 Engine Oils. The vehicles affected are cars that use engine C20 oil as of MY 2021.

Vehicles covered

2017 Porsche 718
2017 Porsche 718 Boxster
2018 Porsche 718 Boxster
2019 Porsche 718 Boxster
2020 Porsche 718 Boxster
2017 Porsche 718 Boxster S
2018 Porsche 718 Boxster S
2019 Porsche 718 Boxster S
2020 Porsche 718 Boxster S
2017 Porsche 718 Cayman
2018 Porsche 718 Cayman
2019 Porsche 718 Cayman
2020 Porsche 718 Cayman
2017 Porsche 718 Cayman S
2018 Porsche 718 Cayman S
2019 Porsche 718 Cayman S
2020 Porsche 718 Cayman S
2018 Porsche 718 Spyder
2019 Porsche 718 Spyder
2020 Porsche 718 Spyder
2012 Porsche 911
2013 Porsche 911
2014 Porsche 911
2015 Porsche 911
2016 Porsche 911
2017 Porsche 911
2018 Porsche 911
2019 Porsche 911
2020 Porsche 911
2012 Porsche 911 Carrera
2013 Porsche 911 Carrera
2014 Porsche 911 Carrera
2015 Porsche 911 Carrera
2016 Porsche 911 Carrera
2017 Porsche 911 Carrera
2020 Porsche 911 Carrera
2012 Porsche 911 Carrera 4
2013 Porsche 911 Carrera 4
2012 Porsche 911 Carrera 4 GTS
2012 Porsche 911 Carrera 4S
2012 Porsche 911 Carrera GTS
2012 Porsche 911 Carrera S
2013 Porsche 911 Carrera S
2014 Porsche 911 Carrera S
2015 Porsche 911 Carrera S
2016 Porsche 911 Carrera S
2017 Porsche 911 Carrera S
2018 Porsche 911 Carrera S
2019 Porsche 911 Carrera S
2020 Porsche 911 Carrera S
2012 Porsche 911 GT2
2013 Porsche 911 GT2
2019 Porsche 911 GT2
2018 Porsche 911 GT2 RS
2019 Porsche 911 GT2 RS
2012 Porsche 911 GT3
2013 Porsche 911 GT3
2014 Porsche 911 GT3
2015 Porsche 911 GT3
2016 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.