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Service bulletin No. 502

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 id10179201
Published by NHTSA2020-09-02
Manufacturer's numberNo. 502
Manufacturer's date2020-08-04
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION

NHTSA's summary

Information on parts withdrawal of outdated oil.

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, Equipment and accessories, Engine oil and lubrication

Vehicles listed
PORSCHE CAYENNE2020

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

Other bulletins for the same vehicles and component
No. 166-21-12024-02-08. Service bulletin. Technical information for Oil Leakage on Cylinder Head Cover: Insert Micro-Self-Locking Screw
No. 19-232023-10-05. Service bulletin. Manufacturers certificate for an overview of approved Porsche A40 engine oils.
No. 18-232023-10-05. Service bulletin. Manufacturers certificate for an overview of approved Porsche C40 engine oils.
No. 17-232023-10-05. Service bulletin. Manufacturers certificate for an overview of approved Porsche C30 engine oils.
No. 16-232023-10-05. Service bulletin. Manufacturers certificate for an overview of approved Porsche C20 engine oils.
No. D6472023-09-09. Service bulletin. Parts information on parts withdrawal for the oil pump
No. 31-202020-10-01. Service bulletin. List of approved engine oils for all Porsche models since 2003.