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Reaching 200k Miles

Discussion in 'Gen 3 Prius Main Forum' started by MelonPrius, Jul 23, 2024 at 7:20 PM.

  1. MelonPrius

    MelonPrius Senior Member

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    Vehicle:
    2014 Prius
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    Three
    I have 120k miles on my '14 and will probably get a new OEM hybrid battery. However, I'd hate to repair/swap my head gaskets/engine before hitting 200k. I've read advice here about extending the life of the engine, but wanted to double check.

    I had my EGR and related components cleaned at 90k and it was relatively clean. I'm going to change my water pump, even though it might be earlier than needed. I've read about the oil catch can but I'm not sure if it's worth it.

    I have been changing my oil at 5k intervals and no longer need to add any oil between oil changes. My first 7-8 oil changes were at 10k intervals and I needed to add a bit of oil around 7-8k miles.

    I had one rough start on a very cold morning last winter, but that was the only time. I rarely drive faster than 70 mph and usually drive on side roads. What are the odds of hitting 200k miles (all of my previous Toyotas hit this benchmark but this is the first Toyota with a reputation of HG issues. My '14 does not have the improved pistons/rings that came out in the later cars that year.

    Outside of routine maintenance, is it worth doing anything else to extend that life of my engine? TIA
     
    #1 MelonPrius, Jul 23, 2024 at 7:20 PM
  2. ForestBeekeeper

    ForestBeekeeper Active Member

    Joined:
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    Vehicle:
    2017 Prius Prime
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    Prime Premium
    Due to where I live I have to swap out my tires every October and April [summer tires / winter studds], I do oil changes at the same time. I have never seen either of our vehicles needing replacement oil.

    My 2011 Gen3 is over 200K miles. No major issues.

    My 2017 Prime plugin is over 150K. No major issues.

    They have both gone through brake pads and booster pumps, but otherwise nothing.

    the bodies are very brittle now, I assume they get brittle from UV. Undercarriage skid plates, and wheel well liners are all gone.
     
    #2 ForestBeekeeper, Jul 23, 2024 at 7:37 PM
  3. MelonPrius

    MelonPrius Senior Member

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    ForestBeekeeper, do you have the original hybrid battery on your '11?
     
    #3 MelonPrius, Jul 23, 2024 at 8:53 PM
  4. rjparker

    rjparker Tu Humilde Sirviente

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    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
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    Three
    Odds of a repair free hg at 200k with 120k now is reasonable but I would not bet the farm on it.

    I would change the coolant now and then every 50k miles.

    I would verify you have the latest ecm software which can be determined with an online Techstream or at a dealer.

    If you start burning a lot of oil it might be time to consider a rebuilt engine partially for hg and equally to save your catalytic converter.
     

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    #4 rjparker, Jul 23, 2024 at 8:59 PM
  5. ForestBeekeeper

    ForestBeekeeper Active Member

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    Yes.
     
    #5 ForestBeekeeper, Jul 23, 2024 at 9:16 PM
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