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Service bulletin No. 2506

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 id11016770
Published by NHTSA2025-04-07
Manufacturer's numberNo. 2506
Manufacturer's date2025-03-08
NHTSA componentFUEL/PROPULSION SYSTEM

NHTSA's summary

Advanced Technical Information - Accelerated Accumulation of Ash in the Gasoline Particulate Filter due to Unapproved Engine Oils

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

Fuel system

Vehicles listed
PORSCHE 9112025

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

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