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Service bulletin No. 91-24

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11022924
Published by NHTSA2025-09-08
Manufacturer's numberNo. 91-24
Manufacturer's date2025-08-20
NHTSA componentENGINE

NHTSA's summary

Technical information for Oil Leakage in the Area of the Upper Part of the Oil Pan and Crankcase: Checking Return Seal on Upper Part of Oil Pan and Replacing if necessary. The vehicles affected are 911 Carrera (992) / 911 Carrera S (992) / 911 Sport (992) / 911 Carrera GTS (992) / 911 Carrera T (992) / 911 Carrera 4 (992) / 911 Carrera 4S (992) / 911 Carrera 4 GTS (992) / 911 Targa 4 (992) / 911 Targa 4S (992) / 911 Targa 4 GTS / 911 Turbo (992) / 911 Turbo S (992) / 911 Dakar (992)

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
PORSCHE 9112020, 2021, 2022, 2023, 2024

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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