oil consumption vs length of oil change interval

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Former Member 68813, Jun 4, 2015.

?
  1. no consumption, OCI near 5,000 miles or less

  2. no consumption, OCI near 10,000 miles or more

  3. consumption, OCI near 5,000 miles or less

  4. consumption, OCI near 10,000 miles or more

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  1. tpenny67

    tpenny67 Active Member

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    I just did some math and 30% of owners reporting 5K OCI are reporting consumption, while 43% of owners reporting 10K OCI are reporting consumption.

    So it looks like shorter oil change intervals does have some amount of benefit, but it's far from a guarantee that you won't have problems.
     
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  2. Grit

    Grit Senior Member

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    I moved on to Redline 0w-20 w/Mobile 1 EP filter and will try to extend my OCI from 5K to 10K, currently has 95K miles. Was on toyota paper filters for the longest time. No oil consumption yet, hopefully this methodical experiment doesn't backfire :ROFLMAO: If redline looks "good as it was poured in on day on" on the 10K OCI as reviews say, the prius will drink the redline koolaid forever.
     
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  3. orenji

    orenji Senior Member

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    My flap is gone, makes it easy.
     
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  4. orenji

    orenji Senior Member

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    I think oil weight plays a factor as does how hard one drives this small 1.8 motor. I have a coworker who has a 2014 and drives it so hard and goes with 10k miles OCI. It will be interesting to see how her motor holds up.
     
  5. Raytheeagle

    Raytheeagle Senior Member

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    Plan on some oil analysis, or just the eye ball test :whistle:?

    When we do the next oil change, I bet it will be darker, but that doesn’t indicate it’s gone;).

    I know the redline 5w-30 I was using was coming out dark after the 10 OCI. But I also EPR flush ours:).

    Ours has been gone for about 7 years now, which coincides with the last dealer oil change:whistle:.

    Go door-less (y).
     
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  6. Grit

    Grit Senior Member

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    Ah, so at the last meet up I mentioned something about amazon reviewers leaving feedback like "looks lighter than most oil after x miles." Detergent may still be sufficient providing protection, but the old soul inside will want to change the oil at first sign of dark brown coffee color so definitely will send it in the lab for testing.
     
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  7. fotomoto

    fotomoto Senior Member

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    So if you cut your OCI to half of recommended (say 5k instead of 10k), you've effectively doubled your oil consumption. Instead of POTENTIALLY using (burning more) towards the cars' end of life when you're more likely to no longer own it, you're pouring it down the drain pan (please recycle of course) at the beginning while you own it. :confused:
     
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  8. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    I'm ok with that. (y)

    Seriously. You are making sense, but I'd rather "leave the building" in good order.
     
  9. fotomoto

    fotomoto Senior Member

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    Or in your case, not driving as much towards the end of ownership. Consuming more on the front end may only work for those who buy new, drive a lot, and keep it till it dies.
     
  10. StarCaller

    StarCaller Active Member

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    which would be me/ (y)
     
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  11. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    Our driving is really winding down, agree. Try to avoid short, impulse runs too: walk a fair bit, consolidate errands.
     
  12. Raytheeagle

    Raytheeagle Senior Member

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    Don’t know if you’ve shared your stats:whistle:.

    I’m at 180 k miles on our 2010 and log ~25 k miles a year:).

    Our oil consumption is about a quart every 5k miles, so not bad;).

    4-6 more years is what I am hoping for out of our 2010, but I have the Prime fund already started just in case (y).
     
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  13. priusplus_fr

    priusplus_fr New Member

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    Reading this topic, it makes sense to my own experience. Before oil change, my oil consumption was very high on my high-mileage car. I had to add many times oil. I was so stressed after a a big trip that I would check my level right after my trip then every 2 to 3 weeks. Then I did oil change, besides that oil was clear... the level seems to remain the same for the moment. I have changed also of oil brand (0W20)...
    I havent yet to conclude on this topic.
    One of my friend told me that I should change of oil viscosity.... and that using 0W20 oil is a waste if that gets burned.
    Maybe with time, 0W20 is not recommanded and that I should switch to 0W30.... or more.
     
    #113 priusplus_fr, Jul 18, 2018
    Last edited: Jul 18, 2018
  14. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    Consider 5W20 or 5W30 too. 5W30 was recommended oil weight for second generation Prius.

    With our 2010 I've used only Toyota 0W20 so far, and no consumption. But I appreciate it can be a roll of the dice. All our previous Honda's needed modest to moderate amounts of oil top up between changes.
     
  15. Grit

    Grit Senior Member

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    My Prius gets its oil checked every other day, no comsumption...yet. Who's stressed now?!!! :p
     
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  16. tpenny67

    tpenny67 Active Member

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    That's good! You should be checking that frequently on any car when it's not burning any oil, so if it does start burning you'll notice the level dropping before you run the engine low on oil and cause damage. When it does start burning oil, that's when you check every week or every fill-up.
     
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