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Best Transaxle Fluid

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by MrBlue, Sep 12, 2010.

  1. MrBlue

    MrBlue Junior Member

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    2007 Prius
    Greetings,
    My 06' is coming up on 112,000-miles and running strong. I am planning on changing the transaxle fluid within the next two weeks.
    After reading almost every post relating to the transaxle fluid I have come up with 3-opinions:
    1. Use the Toyota ATF-WS
    2. Use Redline D6
    3. Use Redline D4
    I understand that Redline is pushing the D4 for the viscosity reasons.
    However has anyone had negative results running the D6?
    Thanks,
    Victor
     
    #1 MrBlue, Sep 12, 2010
  2. dogfriend

    dogfriend Human - Animal Hybrid

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    I have yet to see a UOA (used oil analysis) for Redline D4 or D6. I have seen several UOA for WS including a couple of my own. UOA shows that WS is good for at least 30k miles; that is the interval I am using from now on. Redline may be better or worse, but without running the UOA your guess is as good as anyone else.
     
    #2 dogfriend, Sep 13, 2010
  3. 2009Prius

    2009Prius A Wimpy DIYer

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    This analysis of one data point (one car, three changes at 60K intervals) shows Toyota WS may be good for 60K miles. Good luck! :)
     
    #3 2009Prius, Sep 13, 2010
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