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Service bulletin MI15-61

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 id10131458
Published by NHTSA2018-04-02
Manufacturer's numberMI15-61
Manufacturer's date2015-12-03
NHTSA componentENGINE

NHTSA's summary

This Maintrenance infomration explains that the Castrol Syntrans oil isn?t fully approved for 500 000 miles (800 000 km) extended drain intervals on the Volvo I-Shift transmission. For this reason, this oil has been downgraded to regular drain intervals. Find below, a list of Volvo?s approved oils for extended drain as well as regular drain intervals.

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
PREVOST H3-412008 to 2015
PREVOST H3-452008 to 2015
PREVOST X3-452008 to 2015

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