Need advice from Experienced Plug in Hybrid owners

Discussion in 'Prime Care, Maintenance and Troubleshooting' started by John321, Jul 31, 2019.

  1. John321

    John321 Active Member

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    I would be interested in some advice on when to change the oil on a Plug in Hybrid. I have a new hybrid that is about 4 months old. I am interested in how Prius owners are handling this with their Plug in Prius.


    This is my first experience with a Plug in Hybrid. I have about 3,500 miles now on a brand new Hybrid. I would estimate the engine has run for about 500 of those miles. The manual calls for changing the oil at 7,500 miles or 3,500 in extreme duty. With this engine running for such a small time maybe this qualify's as extreme duty.

    I honestly don't quite know what to do. My instincts tell me to be careful and do an oil filter change right now while my common sense tells me the oil only has only maybe 500 miles on it.

    How do you gentlemen handle your oil change intervals with your Plug In Prius. For warranty requirements does the recommended severe interval trump everything else?

    Thank You in advance for sharing your advice and experience!
     
    #1 John321, Jul 31, 2019
    Last edited: Jul 31, 2019
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  2. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    They did not make any Plug in hybrids in 2008, so I assume your info is incorrect.

    I am unaware of any Prius ever with a 7,500 mile Oil Change Interval in the US. So that is no clue what you own.

    Whatever you own, follow the Maintenance schedule as described in your manual.

    As an example, here is the manual for the 2020 Prius Prime. the schedule starts on page 42.
    https://www.toyota.com/t3Portal/document/omms-s/T-MMS-20PriusPrime/pdf/T-MMS-20PriusPrime.pdf
     
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  3. noonm

    noonm Senior Member

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    Was at the dealership this week getting my first scheduled maintenance on my 2018 Prius Prime. They went over the maintenance schedule, noting that the Prime only needs an oil change every 10,000 miles, so I'm not sure where you're getting the 7500 mile change.

    Do you have a plug-in hybrid (i.e. the Prius Prime) or just a regular hybrid (i.e. the Prius)?
     
  4. John321

    John321 Active Member

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    I have a different brand Plug in Hybrid vehicle than the Prime. I participated in this forum when we had a 2008 Prius and grew to respect the people on this forums opinions and experience. So even thought this isn't a Toyota hybrid I just want to know how the individuals here based their maintenance intervals on the Plug in Hybrids. They have experience with Plug in Hybrids and I value their experience. The maker of the Plug in Hybrid I have is relatively new to this market and they don't have the experience base on their forum that Prius Chat has!
     
  5. bisco

    bisco cookie crumbler

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    this is the negative side of a phev. no one knows what kind of abuse the engine is going thru, when it rarely runs, and at that, it's just warm up often times.

    i am in the same boat, but i have decided to just change the oil once a year. i cannot tell you how this will affect the engine in the long run, but only having 20k on it in 7 years, i'm not sure it will matter.
     
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  6. noonm

    noonm Senior Member

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    Good point and part of the reason I went with an extended warranty. Would rather put that risk on Toyota than myself.

    That being said, I would say stick with whats in the manual for the regular 7500 mi service. Modern oil and engines seem well designed to go way past the old 'change it every 3000mi' advice.
     
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  7. Tha_Ape

    Tha_Ape Active Member

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    Don't forget, oil changing isn't purely based on mileage, it's based on age as well. Even if you never run the engine you still need to change the oil.

    I don't know how long synthetic lasts (probably a while), but I wouldn't go past 1yr with it.

    I'm just gonna change mine every 10k (I do that within a year). Even if the engine never runs...
     
  8. noonm

    noonm Senior Member

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    Yes, forgot to mention that! Prime manual says 10,000 miles/1 year. I often hit the time limit before the distance one.
     
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  9. jb in NE

    jb in NE Senior Member

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    What is the basis for this assertion? How does the oil deteriorate just sitting in the oil pan?
     
  10. Tha_Ape

    Tha_Ape Active Member

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    Not 100% sure, but a relative of mine has a few classic cars and if you're not going to use an engine for awhile you drain the fluids so it doesn't gunk up. As I said, synthetic probably lasts a long time, but $35 for 5qts of 0w20 and a filter is a small price to pay annually to ensure it's all good. I could probably do 1hr of research and find out, but I'm lazy.
     
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  11. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Two ideas.

    Like Brake fluid, engine oil attracts water and water is a poor lubricant. This should vary by location.

    This is especially important if the low mileage is short trips, where the water does not boil out.

    So 'low mileage' where the engine runs a short time, would be much worse than 'low mileage' where the engine never runs at all.

    I am doing MUCH less driving now that I am retired, from 30,000 a year to about 8,000 miles, so I am on the time, not miles schedule. But I drive long distance when I do drive, both Memphis and Jackson are over 100 miles away, so I do not drive short distances, I drive rarely.
     
  12. jerrymildred

    jerrymildred Senior Member

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    It's not real complicated. If you want to keep the manufacturer's warranty in effect, follow the oil change schedule.
     
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