Porsche 718 2002–2020 — technical service bulletin

Bulletin No. 27-26 · NHTSA communication 11037813 · issued Sep 22, 2026

Technical service bulletin

communication type

Power Train

component

2002–2020

model years

vehicle entries

Official summary

Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are allocated.

Vehicles covered

2017 Porsche 718
2016 Porsche 718 Boxster
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
2016 Porsche 718 Cayman
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
2002 Porsche 911
2003 Porsche 911
2004 Porsche 911
2005 Porsche 911
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
2005 Porsche 911 (997)
2006 Porsche 911 (997)
2007 Porsche 911 (997)
2008 Porsche 911 (997)
2009 Porsche 911 (997)
2010 Porsche 911 (997)
2011 Porsche 911 (997)
2002 Porsche 911 Carrera
2003 Porsche 911 Carrera
2004 Porsche 911 Carrera
2005 Porsche 911 Carrera
2006 Porsche 911 Carrera
2007 Porsche 911 Carrera
2008 Porsche 911 Carrera
2009 Porsche 911 Carrera
2010 Porsche 911 Carrera
2011 Porsche 911 Carrera
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
2009 Porsche 911 Carrera 4

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.