Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Porsche 718 1984–2020technical service bulletin

Bulletin No. 13-21 · NHTSA communication 10189886 · issued Mar 26, 2021

Technical service bulletin
communication type
Equipment
component
1984–2020
model years
60
vehicle entries

Official summary

List of approved C20 style engine oils for classic and new Porsche models since 1984.

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.