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Transmission fluid

Discussion in 'Gen 5 Prius Technical Discussion' started by Jacklee007, Mar 3, 2024.

  1. Jacklee007

    Jacklee007 New Member

    Joined:
    Feb 29, 2024
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    Location:
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    Vehicle:
    2012 Prius
    Model:
    Four Touring
    My 2023 Prius owner manual states to use Toyota e-Transaxle Fluid TE for the transmission.

    I think this is an error as the e-Transaxle fluid is used in the differentials for AWD.

    Anyone know for sure?


    iPhone ?
     
    #1 Jacklee007, Mar 3, 2024
  2. Trollbait

    Trollbait It's a D&D thing

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    The transmission is a single planetary gear set. There are no clutches, nor any other gears to shift too. Past models used ATF simply because it was convenient. Toyota finally using a fluid designed for a hybrid transaxle is an improvement.
     
    #2 Trollbait, Mar 4, 2024
  3. Dyjital

    Dyjital Member

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    Location:
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    Vehicle:
    2023 Prius
    Model:
    XLE AWD-e
    here you go.
    The newer fluids are just like the 0w-16 oils, less resistance for better fuel economy.

    Other vehicles will use the same thin oil in a transmission, transfer case and rear differential. Heck, I put Pentosin CHF 202 in a rear differential last week because it called for that fluid. It's like water.

    It's counter intuitive but keep in mind that these tolerances are tighter than the .050"+/- we're used to seeing on domestics and fluid sheer is real with this system. Thinner oils, less resistance, better MPG.

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    #3 Dyjital, Mar 12, 2024
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