How often do you change your oil?

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by JayGen4, Apr 6, 2020.

  1. JayGen4

    JayGen4 Member

    Joined:
    Mar 16, 2020
    120
    56
    0
    Location:
    Sacramento, CA
    Vehicle:
    2017 Prius
    Model:
    Two
    I hear 10k is fine but the shops tell me 5k. I guess 5k is the norm but I get mixed answers for the Prius.

    Just wondering what other owners do. Mine is almost at 130k. 2016 Prius 2.
     
  2. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    7,483
    9,187
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    The owners manual says every 10,000 mikes or one year, whichever comes first.
     
  3. JayGen4

    JayGen4 Member

    Joined:
    Mar 16, 2020
    120
    56
    0
    Location:
    Sacramento, CA
    Vehicle:
    2017 Prius
    Model:
    Two
    Sweet! Thank you. Anytime a shop tells me 5k I'll remind them the manual says 10k

    Makes me trust the shop less though...ugh, finding a good shop is not fun.
     
    jerrymildred likes this.
  4. FuelMiser

    FuelMiser Senior Member

    Joined:
    Jun 29, 2008
    832
    559
    0
    Location:
    Monument, CO
    Vehicle:
    2016 Prius
    Model:
    Touring
    I change at 10K miles, and don't worry about the months. It takes me slightly longer than 12 months to put 10,000 miles on and I wait for 10,000 miles. On another car I own, I send oil samples to Blackstone Labs, and they specifically say the oil has plenty of life left after only 12 months, and not to worry so much about the time.
     

    Attached Files:

    JayGen4 likes this.
  5. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    39,329
    27,979
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Just food for thought:

    1. For Second Gen, Toyota USA said 5K miles or 6 months (whichever comes first). With Third Gen they switched to 10K miles or 12 months.

    2. For Third Gen, Toyota Canada said 8K kilometers (5K miles approx) or 6 months (whichever comes first). For Fourth Gen they switched to 16K kilometers (10K miles approx) or 12 months.

    All these flip-flops having me "trusting" Toyota little if any. It's up to you when you change it, well at least if you want to change sooner. Read up, make up your own mind.

    My 2 cents: I'd side with the shop. I don't think they're twisting your arm are they, just suggesting?:
     
    #5 Mendel Leisk, Apr 6, 2020
    Last edited: Apr 6, 2020
  6. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    7,483
    9,187
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    If it was dinosaur oil, then I'd say 5,000. Synthetic would be 10k.
     
    kithmo and Tyfly like this.
  7. FuelMiser

    FuelMiser Senior Member

    Joined:
    Jun 29, 2008
    832
    559
    0
    Location:
    Monument, CO
    Vehicle:
    2016 Prius
    Model:
    Touring
    It wasn't a flip-flop--on the Gen 2/Gen 3. The oil went from "dino" on the gen 2 to synthetic on the gen 3. That's the difference.
     
    jerrymildred likes this.
  8. Aaron Vitolins

    Aaron Vitolins Senior Member

    Joined:
    Feb 28, 2014
    1,450
    956
    0
    Location:
    Franklin TN
    Vehicle:
    Other Hybrid
    Model:
    N/A
    The only thing about running 10k, is you a lot of shops might not put synthetic oil in your car even if you pay for it.

    I watched a thing on the news a few years ago how so many shops either put a synthetic blend, or regular Dino oil. Of course that isn’t the majority? But it still makes ya think!


    I’m thankful I’m young, and have the tools to do my own maintenance.
     
  9. dbat23

    dbat23 Junior Member

    Joined:
    Dec 26, 2017
    13
    7
    0
    Location:
    WI
    Vehicle:
    2016 Prius
    Model:
    Four
    Outside of Toyota's guidelines, one argument for legitimacy of 10k oil change interval is that your gas engine is only running 50% of the time. So 10k miles is more like 5k in effective miles. I split the difference at 7,500 miles as I push mine quite hard with (normally) daily deliveries.
     
  10. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    39,329
    27,979
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    You redacted point number two when quoting me?

    FWIW, the only Owner's Manual mention of "synth" pertains to the leather seat material.

    Bottom line: it's your car, pick your interval. You're "legal" with Toyota (in the States) if you go 10K miles or 12 months (whichever comes first).
     
  11. Montgomery

    Montgomery Senior Member

    Joined:
    Sep 11, 2015
    1,670
    1,716
    2
    Location:
    Orange County, CA
    Vehicle:
    2015 Prius
    Model:
    Two
    I'm an old school fool. I do mine at 5k. When I bought the car new, I went to 10k, and saw the oil was dark (I know, that doesn't necessarily mean anything) and decided to stick to 5k intervals. Just makes me feel better.
     
  12. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    7,483
    9,187
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    Nuthin wrong with that, IMHO. I've tried to split the difference and change at 7,500. However, with this Prime I'm going to keep it at 10K. So far this tank, I'm over 700 miles and the computer tells me it's 97% engine off. Oil is still clear after roughly 3,000 miles.
     
  13. Vman455

    Vman455 Active Member

    Joined:
    Feb 8, 2014
    410
    397
    0
    Location:
    Champaign, IL
    Vehicle:
    2013 Prius
    Model:
    Two
    0W-20 oils, because of their low viscosity at low temperature, are only available as synthetic or synthetic blend oils. By specifying 0W-20, Toyota implicitly specifies synthetic without stating it explicitly.
     
  14. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    39,329
    27,979
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    See my point 2 above. Same gen, same oil spec, Canada vs US. I know, we're colder. Most of us clustered on the 49th parallel. And then there's Alaska.

    Again, you're free to do what you want. I'm just saying I suspect Toyota's motives for going to 10K.
     
  15. kithmo

    kithmo Couch Potato

    Joined:
    Apr 25, 2010
    2,291
    2,589
    47
    Location:
    South Yorkshire, UK
    Vehicle:
    2016 Prius
    Mine's been changed at yearly intervals as a requirement for the Toyota UK warranty. That equates to every 2-3K miles as I've only done 11K miles in 4 years, but mostly short journeys. If it wasn't for the warranty requirements I would have left it to two or three yearly intervals with the oil being fully synthetic.
     
    JayGen4 likes this.
  16. JimboPalmer

    JimboPalmer Tsar of all the Rushers

    Joined:
    Apr 14, 2009
    12,086
    6,389
    2
    Location:
    Greenwood MS USA
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    When I drove 30,000 miles a year, I did it every 10,000 miles. Now I drive less, so I am below 10,000 when the 12 months is up.

    Any ways, which ever is less.

    "the shop" wants your money.
     
  17. FuelMiser

    FuelMiser Senior Member

    Joined:
    Jun 29, 2008
    832
    559
    0
    Location:
    Monument, CO
    Vehicle:
    2016 Prius
    Model:
    Touring
    I didn't think it added anything to my comment.

    Yes, I agree with that. I should have said "Toyota recommends 10K/12 month oil changes IF the last fill was with 0W-20. Otherwise, replace after 5K/6 months." This was added for the Gen 3 cars. So, I still contend this is not a "flip-flop" but an actual change in oil specification that allowed longer intervals over the Gen 2.
     
  18. thomassster

    thomassster Junior Member

    Joined:
    Nov 2, 2015
    94
    22
    0
    Location:
    Colorado, US
    Vehicle:
    2019 Prius
    Model:
    XLE AWD-e
    When I had my gen2, it would continuously burn oil after it got to 150+ miles. It got pretty annoying dealing with it since it would burn a quart in a month span. I had multiple mechanics check it out with no real solution. There were no leaks. Many folks on this forums had complained about it and stated that it is normal. At the time, it used 5w-30 and conventional was the minimum. I always wondered if it improved my interval of oil change if it could have prevented this from happening.
     
  19. Fester

    Fester Active Member

    Joined:
    Mar 29, 2010
    185
    180
    0
    Location:
    Ohio
    Vehicle:
    2017 Prius
    Model:
    Two
    Once yearly in the early fall, with either OEM oil or a full synthetic. Even without the current "lockdown" I usually did less than 5000 miles per year.
     
  20. Prodigyplace

    Prodigyplace Senior Member

    Joined:
    Nov 1, 2016
    11,010
    10,612
    0
    Location:
    Central Virginia
    Vehicle:
    2017 Prius
    Model:
    Two
    Did you not get manuals with your car? They are online too.
     
    Mendel Leisk and jerrymildred like this.
Loading...