Fuel injector cleaner . . . WOW!

Discussion in 'Gen 2 Prius Fuel Economy' started by Sufferin' Prius Envy, Oct 9, 2006.

  1. Isaac Zachary

    Isaac Zachary Member

    Joined:
    Jan 20, 2018
    251
    96
    1
    Location:
    Gunnison, Colorado, USA
    Vehicle:
    Other Hybrid
    Model:
    N/A
    I just use Top Tier fuel.

    When I first got the Prius the CEL was on it had a DTC saying the catalytic converter wasn't doing it's job. Even if I erased the DTC's it would come right back on after the first drive or two. This was something the previous owner said had been like that for a long time.

    I got the car and filled up the tank with Top Tier fuel and haven't had the check engine light come on since, nor do I have any DTC's whatsoever. And I have driven the car plenty of times since then.

    I'm not sure if the problem is completely fixed. But it sure does seem like it.
     
  2. Casey Cronkright

    Casey Cronkright Junior Member

    Joined:
    Apr 7, 2019
    2
    0
    0
    Location:
    Lansing,Mi
    Vehicle:
    2007 Prius
    Model:
    II
  3. Isaac Zachary

    Isaac Zachary Member

    Joined:
    Jan 20, 2018
    251
    96
    1
    Location:
    Gunnison, Colorado, USA
    Vehicle:
    Other Hybrid
    Model:
    N/A
    Well I got the code again yesterday. (I forget the exact DTC code and am too lazy to go read it right now. But it was the catalytic efficiency code). So maybe the top tier fuel didn't help the catalytic converter. CEL still isn't on though yet.
     
  4. jburg

    jburg Junior Member

    Joined:
    Jan 27, 2020
    63
    65
    0
    Location:
    RTP, NC
    Vehicle:
    2010 Prius
    Model:
    One
  5. jburg

    jburg Junior Member

    Joined:
    Jan 27, 2020
    63
    65
    0
    Location:
    RTP, NC
    Vehicle:
    2010 Prius
    Model:
    One
    I should add, I always use a high level PEA cleaner before every oil change. Techron, STP 5-in-1, Redline SL-1, etc. or something that is known to destroy carbon - I prefer Berryman's B12 (they also recently came out with a High Mileage version that is in my tank right now). When I had my wife's intake manifold off on her Gen III when I was cleaning the EGR loop, the intake valves were pretty much spotless. I didn't remove the injectors, but my bet would be they would be similar.

    It's just a good idea to use a complete fuel system cleaner during your normal maintenance routine.
     
  6. jburg

    jburg Junior Member

    Joined:
    Jan 27, 2020
    63
    65
    0
    Location:
    RTP, NC
    Vehicle:
    2010 Prius
    Model:
    One
    That is an insane maintenance suggestion and is legit only a money maker for them. I would say every 100k would be sufficient if you never use a fuel system cleaner and use non-Top Tier fuel.

    The problem with E10 fuel is not that it lacks cleaning ability, it is that it absorbs moisture since ethanol is hygroscopic. This is why E10 goes bad faster than E0. Metal, specifically aluminum, steel, and iron will oxidize due to this water content, but injector surfaces / bodies are probably 304 stainless or better and E10 isn't going to do diddly to them.

    Their wording is merely to make a sale on a service that they can make a quick buck on.
     
Loading...