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Service bulletin No. 42-20

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 id10180461
Published by NHTSA2020-10-01
Manufacturer's numberNo. 42-20
Manufacturer's date2020-09-03
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Overview of Approved Porsche C40 Engine Oils as of MY21.

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 CAYENNE2021
PORSCHE MACAN2021
PORSCHE PANAMERA2021
PORSCHE TAYCAN2021
PORSCHE redundant BOXSTER2021
PORSCHE redundant CAYMAN2021

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

Recalls for the same vehicles and component
21V4860002021-06-29. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION MOTOR:CONTROLLER:SOFTWARE
21V3410002021-05-12. ENGINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
No. 31-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
No. 30-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
No. 29-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
No. 36-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
GR13D8022026-09-04. Service bulletin. Parts Information for Parts Withdrawal - Coolant Regulator Housing
GR13D8032026-09-04. Service bulletin. Parts Withdrawal - Control Valve
No. 2304-22026-09-04. Service bulletin. Information on Advanced Technical Information for E3.I/G2 V8 – Oil/Air Separator Membrane Failure
No. 50-26-22026-09-04. Warranty extension. Update to Warranty Information: Warranty Extension for Additional Coolant Pump
13/262026-08-06. Service bulletin. Allocation of Approved Engine Oils MY 2027 (13/26)
50/262026-08-05. Warranty extension. Warranty Information: Warranty Extension for Coolant Pump (50/26)