Subaru Forester 2010–2011 — technical service bulletin
Bulletin 02-115-11R · NHTSA communication 10067846 · issued Feb 7, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010–2011
model years
4
vehicle entries
Official summary
If you encounter a customer complaint concerning white smoke from the exhaust pipe and/or high oil consumption, it may be the result of the #1 and/or #4 intake valve guide insertion hole improperly machined, permitting oil to enter the combustion chamber. To remedy this condition, the cylinder head(s) will need to be replaced. Please read this bulletin in its entirety before proceeding.
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.