Repair cost
$0–$3,500
Class-action settlement coverage
DIY difficulty
5 / 5
Severity
Major
Costly to ignore — plan a fix within weeks
Affected
2012-2016
FB20
What goes wrong
Low-tension oil control rings lose seal; oil migrates past and burns.
Symptoms to watch for
- 1 quart per 1,000-1,500 miles
- Plug fouling
Root cause
Low-tension ring design.
In-article ad
Buy time with these
- • Heavier oil weight; monthly check
Permanent fix
- Short-block replacement
FAQ
What causes fb20 impreza oil consumption?
Low-tension ring design.
How much does it cost to fix?
National average $0–$3,500. Class-action settlement coverage
Is this a DIY repair?
Difficulty 5/5. Short-block replacement
What are the symptoms?
1 quart per 1,000-1,500 miles; Plug fouling
Sources
- • Yaeger settlement