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One for the Experts - Only (Oil usage)

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by fikey13, Jul 3, 2012.

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  1. jadziasman

    jadziasman Prius owner emeritus

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    How much oil? A drop?
    Please be specific.
     
    #41 jadziasman, Oct 7, 2013
  2. SageBrush

    SageBrush Senior Member

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    I'm waiting for OP to tell what an expert is, how he will know, and most important, how he will understand and objectively judge the answer :)

    Of one thing I am reasonably certain though -- someone I would view as an expert is unlikely to be be posting in PC.
     
    #42 SageBrush, Oct 7, 2013
    mtbiker53 likes this.
  3. Daves09prius

    Daves09prius Active Member

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    Lucas oil stabilizer

    watch this helpful video:
     
    #43 Daves09prius, Oct 11, 2013
  4. uart

    uart Senior Member

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    I think to some extent Lucas oil stabilizer works, but one thing that no one has every been able to tell me is: What is the difference between adding LOS and just using a heavier grade oil to begin with? (Apart from the added cost of the LOS of course.)
     
    #44 uart, Oct 12, 2013
    Daves09prius likes this.
  5. Former Member 68813

    Former Member 68813 Senior Member

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    Any followup on this? I wonder if one should credit AutoRx, 5W20, or M1EP.
     
    #45 Former Member 68813, Dec 7, 2013
  6. tivoboy

    tivoboy Junior Member

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    No significant changes
    I changed the oil at 135,000 with M1EP and am at 138,000 - still consume about 1qt per 4,000miles
    I believe my oil consumption rings were stuck and Auto-RX freed them initially and there has been slight improvement since with maintenance doses

    Here is what I believe:
    - Significant oil loss is due to stuck rings
    - Use something to free the rings - Auto-RX, Kreen, Marvel Mystery Oil, Rislone, etc
    - Switch to an oil that will resist ring land fill - ACEA rated synthetic oil
    - Thicker oil will slow oil loss, but will probably not free rings
    - Techron may help free compression rings and possibly oil control rings
     
    #46 tivoboy, Dec 14, 2013
    Dino33ca likes this.
  7. Paul R. Haller

    Paul R. Haller Member

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    Well now 90,000 miles. Changed oil since new and used Synthetic Pensoil 5-30 and Toyota filters. I drive it like I stole it. It uses 1+1/2 quarts every oil change (every 5000 miles). Maybe some Rislone or marvel mystery oil?!?any Ideas?
     
    #47 Paul R. Haller, Dec 16, 2013
  8. tivoboy

    tivoboy Junior Member

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    Four
    Here is the log for this OCI
    4qt M1EP 5w20 @135,000
    1qt + AutoRX maintenance dose @138,500
    0.5qt @141,000
    0.5qt @143,000
    0.5qt @146,600
    Ready to change oil @150,000 about 0.5qt low

    3qt over 15,000mi = 1qt per 5,000mi
     
    #48 tivoboy, May 21, 2014
    Dino33ca, kredfish00 and Former Member 68813 like this.
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