Spark plugs replaced at 104K miles on 2010 Prius

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by hatbe, Jun 17, 2018.

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  1. hatbe

    hatbe Junior Member

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    These are the spark plugs from my 2010 Prius, it has 104K miles when I replaced them, and still in OK condition. The original spark plugs are Denso SC20HR11, I replaced with DensSC16HR11

    IMG_20180610_151540.jpg IMG_20180610_151514.jpg
     
    #1 hatbe, Jun 17, 2018
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  2. JC91006

    JC91006 Senior Member

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    They look like they can go another 100k miles
     
    #2 JC91006, Jun 17, 2018
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  3. Raytheeagle

    Raytheeagle Senior Member

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    Any reason for replacing them before 120 k miles rolled up?
     
    #3 Raytheeagle, Jun 17, 2018
  4. hatbe

    hatbe Junior Member

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    No, I just want to do all major maintenance in one shot: spark plugs, inverter coolant, engine coolant, brake fluid flushing and throttle cleaning.
     
    #4 hatbe, Jun 17, 2018
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  5. Raytheeagle

    Raytheeagle Senior Member

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    You missed the egr circuit cleaning;).

    But that’s not in the owners manual :whistle:.

    Another item to consider (y).
     
    #5 Raytheeagle, Jun 17, 2018
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  6. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Do you have a wire gauge set so that you can assess the gap size of the used plugs?
     
    #6 Patrick Wong, Jun 17, 2018
  7. hatbe

    hatbe Junior Member

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    I checked the gap is 1.05 mm, I guess the carbon build up cause the gap a bit smaller
     
    #7 hatbe, Jun 17, 2018
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  8. hatbe

    hatbe Junior Member

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    Thanks for reminding, I will do the EGR pipe cleaning soon.
     
    #8 hatbe, Jun 17, 2018
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  9. Raytheeagle

    Raytheeagle Senior Member

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    Oh it’s more than the pipe ;).

    Intake manifold, egr valve and egr cooler. Best to pair with an engine coolant change and when the windshield wiper cowling is removed (like wen doing the spark plugs):).

    The pipe will give you insight into the situation and state of affairs though(y).
     
    #9 Raytheeagle, Jun 18, 2018
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  10. JC91006

    JC91006 Senior Member

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    I'm waiting for Toyota to issue a recall to clean the EGR circuit because of all the head gasket failures.....and they better hurry as I'm approaching 110k miles
     
    #10 JC91006, Jun 18, 2018
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  11. Raytheeagle

    Raytheeagle Senior Member

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    You’re going to wait:whistle:?

    Just don’t wait too long or you'll be one of those in the wake;).

    How much oil is the early Gen3 consuming?
     
    #11 Raytheeagle, Jun 18, 2018
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  12. JC91006

    JC91006 Senior Member

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    I cleaned the EGR pipe around 100k miles to buy extra time. Oil burning is around 1 qt every 2500 or so miles. More if it's driven at high speeds
     
    #12 JC91006, Jun 18, 2018
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  13. orenji

    orenji Senior Member

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    TSB would be issued, I dont think a recall would be issued. A lot of factors could be the cause for head gasket failures.
     
    #13 orenji, Jun 18, 2018
  14. JC91006

    JC91006 Senior Member

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    TSB would make it owners responsibility....
     
    #14 JC91006, Jun 18, 2018
  15. Raytheeagle

    Raytheeagle Senior Member

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    Still on prescribed 0w-20 or have you clubbed up?
     
    #15 Raytheeagle, Jun 18, 2018
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  16. JC91006

    JC91006 Senior Member

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    Next oil change will be 5w-30. I had a stock of 0w-20 that my gen2 can't use
     
    #16 JC91006, Jun 18, 2018
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  17. orenji

    orenji Senior Member

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    TSB would make the owner responsible, the car is over 100k miles.
     
    #17 orenji, Jun 18, 2018
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  18. orenji

    orenji Senior Member

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    Go to 0W-40 weight. It's doing wonders on another vehicle that was burning oil.
     
    #18 orenji, Jun 18, 2018
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  19. JC91006

    JC91006 Senior Member

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    Surely this will be a lawsuit in the making for the people that already have failures
     
    #19 JC91006, Jun 18, 2018
  20. Raytheeagle

    Raytheeagle Senior Member

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    5w-30 works too;).

    Been on that program for 60 k miles and doing well:).

    But I’ll experiment up at 190 k around thanksgiving (y).
     
    #20 Raytheeagle, Jun 18, 2018
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