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Break fluid change

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Asif Subhan, Jan 13, 2019.

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  1. Asif Subhan

    Asif Subhan New Member

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    I know that Prius manual recommend DOT 3 oil change , but is it okay to use DOT 4 instead of DOT3 ? Or should I stick with DOT 3?

    Prius with 200K
     
    #1 Asif Subhan, Jan 13, 2019
  2. ChapmanF

    ChapmanF Senior Member

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    Wikipedia says it's ok "if the elastomers in the system accept the borate compounds that raise the boiling point."

    I would avoid guessing about the elastomers, and just use DOT 3. If it were me, I'd probably even buy the fluid at the dealer, or at least check their price. I thought their engine oil would be overpriced, but it turned out not to be.
     
    #2 ChapmanF, Jan 13, 2019
  3. tankyuong

    tankyuong Senior Member

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    Should be fine
     
    #3 tankyuong, Jan 13, 2019
  4. Asif Subhan

    Asif Subhan New Member

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    Thank you guys , will definitely call dealer . My dealer had deal last time , 42 dollar for oil change including labor and oil filter . I’m wondering how much a gallon of engine oil would cost at dealer. I normally use Mobil 1 ep or Mobil 1 high mileage
     
    #4 Asif Subhan, Jan 13, 2019
  5. Grit

    Grit Senior Member

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    Hack jacked your own thread on 4th post
     
    #5 Grit, Jan 13, 2019
  6. Mendel Leisk

    Mendel Leisk Senior Member

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    Agree, don't get clever, and to avoid any compatibility issues (real or not), just stick with Toyota brand

    I used Toyota DOT 3 fluid, purchased through dealership, for $7 something (CDN) per "pint". I bought two pints, which worked out.

    I'm getting liters of Toyota 0W20 in bulk at dealership for $4.90 (CDN) per. Bottled liters of same are about $6 now I think.
     
    #6 Mendel Leisk, Jan 13, 2019
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