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To Change Oil Type or Not? 2005 Prius 128k miles

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Tarams, Jun 17, 2017.

  1. Tarams

    Tarams Junior Member

    Joined:
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    Location:
    North Carolina
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    So my car is now over 100,000 miles and I am wondering if I should switch to a synthetic or other (high mileage?) type motor oil.

    I honestly have no idea what what weight I've been running - just conventional (usually have oil changed at local places), but I'd love to get 10k miles between changes. I live in NC (USA) where we have four seasons (single digits to 100+ degree temps). Other forums comment that Amsoil 0w-30 is good for 35k miles and Shell Rotella synthetic 5w-40 is may be another option.

    Anyone have any advice for me? I don't seem to be losing/burning anything now, not sure if it's okay to switch and if so, what to switch to. Thanks for any advice!
     
    #1 Tarams, Jun 17, 2017
  2. Moving Right Along

    Moving Right Along Senior Member

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    #2 Moving Right Along, Jun 17, 2017
  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Are you consuming any oil between changes, and I assume you're currently following the US second generation 6 month or 5000 mile oil-and-filter-change interval? If so how much?
     
    #3 Mendel Leisk, Jun 17, 2017
  4. jzchen

    jzchen Newbie!

    Joined:
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    Location:
    Arcadia, CA
    Vehicle:
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    Five
    If you get 20k miles within a year you can try Mobil 1 Annual Protection. There is also Extended Performance which would last 1 year or 15k miles, whichever occurs first.
     
    #4 jzchen, Jun 17, 2017
  5. Cdgreg

    Cdgreg Member

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    Vehicle:
    2020 Prius Prime
    Model:
    XLE
    I considered the same thing recently, I'm at 182k burning a quart per 5,000 miles, most of which seems to burns towards the second half of the 5000 miles. I ultimately decided just to keep two quarts of the Walmart 5-w30 ($2 per quart) in my trunk with a funnel and keep her topped off after the 2500 mile mark. If I'm going to burn it, might as well burn the cheap stuff. I'm not sure if a synthetic would burn less, but I'm not having any other engine issues so just staying as-is.
     
    #5 Cdgreg, Jun 18, 2017
    Raytheeagle likes this.
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