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  1. ('09-'13) Cylinder 2 Misfire - 2011 FB25 Engine

    FB25 - 2.5L Non-Turbo (2011- 2018)
    Hello -- started getting the P0302 code for a misfire in cylinder 2 & it idles very rough. FB25 non-turbo engine has ~150k miles on it so I did the following work: Replaced both valve cover gaskets (went to replace the spark plugs and noticed that there was oil in the tubes) 4 new NGK spark...
  2. ('14-'18) Dyno for FB25 NA? Anyone ever done it?

    FB25 - 2.5L Non-Turbo (2011- 2018)
    Just wondering if any curious person on this subforum has put their NA FB25 under a dyno to find out its kw/horsepower? I am curious myself to know what my engine puts out. Also, how much does a dyno generally cost? - i am guessing around $500?
  3. 2015 >to> 2011 fb25 engine interchange?

    Motor Conversions
    Hi, new here, very happy to have found this forum. I have a 2011 Forester with a tired fb25 engine. I found a used engine from a 2015 with very low miles. The 6th digit is the same in both my car and donor car vins and both share the same engine letter"C." Both are PZEV engines. I'm wondering...
  4. ('09-'13) 2012 - FB25 Engine Problems - there must be something we can do?

    Problems, Maintenance, and Warranty
    My girlfriend had bought a 2012 Subaru Forester with the FB25BA engine at the end of 2018 without knowing the oil consumption issue. In March of 2019, she was driving on the highway and the engine had completely seized on her in the middle of nowhere due to low oil. We didn't know anything about...
  5. Any 2011 Foresters w/ FB Motors & No Problems?

    Forester Shopping
    Howdy all, I am a recent add to this forum and have a (dumb) question. I have done some searching around multiple forums, but have not found a clear answer to this question. Are there any Foresters out there with the 2.5L naturally-aspirated FB motors that did not have issues? I am looking at a...
  6. ('09-'13) 2011 - Engine Replacement - special steps or things to note before starting?

    FB25 - 2.5L Non-Turbo (2011- 2018)
    Hello, Replacing the motor in my wife's 2011 Forester 2.5L FB25 6th Digit B, found a used one with 34k miles on it, going to be hopefully dropping it in this weekend, any special steps or things to note for start up of the engine once installed? I ask because years back when I was looking at a...