Subaru will replace the piston rings on some 2011-2014 Outback, Forester, and XV Crosstrek crossovers, and Impreza and Legacy sedans, due to a problem with excessive oil consumption.
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On some of these vehicles, Subaru has found unanticipated wear of the oil control piston rings. In affected engines, oil consumption will be higher than normal and consistent, and the condition remains until repair is made.
Subaru has come up with a fix for this problem in the form of a change in the surface treatment of the oil control piston rings. On affected vehicles, Subaru will replace the piston rings at no charge under the provisions of the cars' warranty.
On vehicles out of warranty, customers will have to pay for their vehicle's repairs--a major out-of-pocket expense, since the engine has to be disassembled, piston rings installed and the engine reassembled, plus any other parts that were damaged as a result of oil loss, gaskets and fluids.
Owners should closely monitor their oil levels, and to report consistent drops in oil levels to their dealer, along with the relevant Subaru TSB number, depending on which vehicle they own:
- 2013 Legacy & Outback w/ 2.5 FB engine: # 02-143-13R. Title: "Engine - Excessive Oil Consumption, Piston Ring Wear"
- 2012 - 2014 Forester w/ 2.5 FB engine: # 02-144-13R. Title: "Engine - Excessive Oil Consumption, Piston Ring Wear"
- 2011 - 2012 Forester w/ 2.5 FB engine: # 02-147-13R. Title: "Engine - Excessive Oil Consumption, Piston Ring Wear"
- 2012 - 2013 Impreza w/ 2.0 FB engine; 2013 XV Crosstrek: # 02-145-13R. "Engine - Excessive Oil Consumption, Piston Ring Wear"
For more info or answers to questions, call Subaru Customer Service at 800-782-2783.
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