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Service bulletin MT-003-21

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 id10202696
Published by NHTSA2021-10-31
Manufacturer's numberMT-003-21
Manufacturer's date2021-10-06
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION: OIL COOLER

NHTSA's summary

Some customers may complain about high engine oil consumption. Before attempting any repairs, verify the complaint by using the guideline below to determine if an engine repair is necessary:

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, Labels and manuals, Engine oil and lubrication

Vehicles listed
MAZDA CX-72007, 2008, 2009, 2010, 2011, 2012
MAZDA CX-92007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
MAZDA MAZDA22011, 2012, 2013, 2014
MAZDA MAZDA32004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
MAZDA MAZDA52006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
MAZDA MAZDA62003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013

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