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Anyone running 42 40 on OEM Tires?

Discussion in 'Gen 3 Prius Fuel Economy' started by FishHawk, Dec 12, 2010.

  1. FishHawk

    FishHawk New Member

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    I had increased milage on my 06 tires running 42 40 anyone doing this on the YoKo OEM tires? FishHawk
     
    #1 FishHawk, Dec 12, 2010
  2. Paul58

    Paul58 Mileage Miser

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    I'm running 40/38 on my Bridgestones, haven't tried 42/40 yet...
     
    #2 Paul58, Dec 12, 2010
  3. xs650

    xs650 Senior Member

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    42/40 on my Goodyear Assurances. My driving is varied enough that I can't claim I know how much fuel economy improvement there is.
     
    #3 xs650, Dec 12, 2010
  4. Judgeless

    Judgeless Senior Member

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    There are over 100 threads on this topic. Please use the search before starting another.

    I run 47/49 on OEM.
     
    #4 Judgeless, Dec 12, 2010
  5. Tideland Prius

    Tideland Prius Moderator of the North
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    40/38 on the Nokian WR on the Gen 2
    40/38 on Bridgestone Ecopias on the Gen 3 (42/40 on Nokian R winter tyres)
     
    #5 Tideland Prius, Dec 12, 2010
  6. jdcollins5

    jdcollins5 Senior Member

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    I tried 42/40 on my OEM Yokohama Avid's but they were a little too hard for my taste. I backed down to 40/38 and the ride is more to my liking.
     
    #6 jdcollins5, Dec 12, 2010
  7. peterjmc

    peterjmc Ping pong in Ding Dang...

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    Trying a tank out now running 42/40 on the OEM 17"s

    The ride is noticeably rougher. I'm not sure if this has helped gas mileage any because I'm also still developing my driving technique. This is only my 4th tank of gas.
     
    #7 peterjmc, Dec 13, 2010
  8. deltron3030

    deltron3030 New Member

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    I do
     
    #8 deltron3030, Dec 13, 2010
  9. Former Member 68813

    Former Member 68813 Senior Member

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    +1
     
    #9 Former Member 68813, Dec 17, 2010
  10. JJB

    JJB New Member

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    Noob question: are the two numbers front/rear?
     
    #10 JJB, Jan 1, 2011
  11. jdcollins5

    jdcollins5 Senior Member

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    Yes. You want to run about 2 psi higher in the front due to the extra weight.
     
    #11 jdcollins5, Jan 1, 2011
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