Acura MDX 2009–2014 — technical service bulletin
Bulletin B18-009 · NHTSA communication 10136440 · issued May 2, 2018
Technical service bulletin
communication type
Engine
component
2009–2014
model years
16
vehicle entries
Official summary
Service bulletin - The oil control rings may become clogged with carbon deposits. These deposits restrict the ability to scrape and return oil from the cylinder walls to the crankcase, which can result in engine oil consumption that may exceed client expectations.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.