Subaru Forester 2011–2014 — technical service bulletin
Bulletin 02-157-14R · NHTSA communication 10080542 · issued Jan 7, 2015
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2014
model years
11
vehicle entries
Official summary
Revised service bulletin: surface treatment change to oil control piston rings this bulletin announces information regarding a major change to the repair procedures previously outlined in service bulletins 02-143-13r, 02-144-13r and 02-145-13r.
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.