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Service bulletin TSB260095

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 id11037031
Published by NHTSA2026-09-04
Manufacturer's numberTSB260095
Manufacturer's date2026-08-20
NHTSA componentENGINE

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the recommended oil grade specification for certain X15N engines which may result in customer usage of 10W 30 oils at high ambient temperatures, resulting in increased oil consumption and instances of fault code FC1856 being set.

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
CUMMINS X15N

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