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Oil Consumption

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Scott McCoy, Apr 21, 2016.

  1. Scott McCoy

    Scott McCoy Junior Member

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    2010 Prius
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    III
    My 2010 prius III, not Three, with 161K miles used very little oil between changes (10,000 mi). Always use Mobile 1 0w-20. Before last oil change it used 4 qts. I took it to the dealer to resolve problem. They could find no evidence of leaks. Changed spark plugs and found no evidence of burning oil. I asked about PCV and dealer said never had to replace one. Anyway, I took it home and changed oil and have less that 1k miles and have used about a qt of oil. Any suggestions?
     
    #1 Scott McCoy, Apr 21, 2016
  2. mrbigh

    mrbigh Prius Absolutum Dominium

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    an extra qt. of oil after you put in 4 qts?
     
    #2 mrbigh, Apr 21, 2016
  3. Scott McCoy

    Scott McCoy Junior Member

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    Vehicle:
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    III
    I put 4 qts in between oil change, then changed the oil and now have less than 1k miles and have used a qt of oil.
     
    #3 Scott McCoy, Apr 21, 2016
  4. Mendel Leisk

    Mendel Leisk Senior Member

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    You're still less than what Toyota mentions in the Owners Manual, 1.1 quarts per 600 miles. And then, what does it say: "contact" your Toyota dealer. No mention of standing behind their product.

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    #4 Mendel Leisk, Apr 21, 2016
  5. Scott McCoy

    Scott McCoy Junior Member

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    Vehicle:
    2010 Prius
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    III
    My point is that the car went over 160K without using any notable amounts of oil. Something must have changed. Any ideas what?
     
    #5 Scott McCoy, Apr 21, 2016
  6. Mendel Leisk

    Mendel Leisk Senior Member

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    Quite a few similar reports here: nothing or minimum oil consumption, then somewhere past 100,000 miles, bam. Nothing conclusive, stuck piston rings mentioned.
     
    #6 Mendel Leisk, Apr 21, 2016
  7. bisco

    bisco cookie crumbler

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    at 160k, why not have a mech throw in a low mile salvage engine?
     
    #7 bisco, Apr 21, 2016
    Mendel Leisk likes this.
  8. Mendel Leisk

    Mendel Leisk Senior Member

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    And replace the EGR module, while the engine's out? It's likely on the verge of totally clogged. Actually could that be causing oil consumption somehow??

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    #8 Mendel Leisk, Apr 21, 2016
  9. mindfk

    mindfk Junior Member

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    How exactly did you arrive at this assumption?
     
    #9 mindfk, Apr 22, 2016
  10. Mendel Leisk

    Mendel Leisk Senior Member

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    Several owners here, with miles over 100,000, have reported clogged EGR.
     
    #10 Mendel Leisk, Apr 22, 2016
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