Tire Pressure Recommendation for Winter

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Tideland Prius, Dec 6, 2009.

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  1. NYPrius1

    NYPrius1 Active Member

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    #21 NYPrius1, Nov 11, 2010
  2. car78412

    car78412 Member

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    Why would Toyota recommend 33/fr 32/r psi if it wasn't the optimum pressure for performance and economy? :confused:
     
    #22 car78412, Nov 14, 2010
  3. Tideland Prius

    Tideland Prius Moderator of the North
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    35/33 actually.

    Because it's a much more comfortable pressure. The ride quality is better at 35/33 than at 40/38.
     
    #23 Tideland Prius, Nov 14, 2010
  4. Mendel Leisk

    Mendel Leisk Senior Member

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    33/32 is recommended pressure for the 17", and I believe 35/33 for the 15". FWIW, I bumped our stock 17" (Michelin Pilot something) up to 42 all around (that's after maybe 4 days ownership, LOL), can't really tell any difference, compared to recommended. I used to typically run near max sidewall pressure on our prev. HCHII.
     
    #24 Mendel Leisk, Nov 15, 2010
  5. Tideland Prius

    Tideland Prius Moderator of the North
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    Thanks for the clarification.

    I do not know.. it's something about the winter tyres (stiffer tread blocks at the edge?). They feel a lot stiffer than the stock tyres at similar pressures.
     
    #25 Tideland Prius, Nov 16, 2010
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