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Factory Tires and Road Noise

Discussion in 'Gen 4 Prius Main Forum' started by jalexainkc, Aug 8, 2016.

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  1. booke02

    booke02 Active Member

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    Cost, I guess
     
    #41 booke02, Aug 17, 2016
  2. DonDNH

    DonDNH Senior Member

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    Cost savings for the 89S is a buck or so per tire.
     
    #42 DonDNH, Aug 17, 2016
  3. Coast Cruiser

    Coast Cruiser Senior Member

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    I have the compact spare.

    But what does that have to do with the four main tires, and the inflation pressure?

    I need a Hot-Fudge Sundae.
     
    #43 Coast Cruiser, Aug 17, 2016
  4. Coast Cruiser

    Coast Cruiser Senior Member

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    A whole buck....

    You sold me! :LOL:
     
    #44 Coast Cruiser, Aug 17, 2016
  5. raspy

    raspy Senior Member

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    The compact spare weighs less than the full size tyre, hence that is why I believe your tyres pressures are higher to compensate.
     
    #45 raspy, Aug 17, 2016
  6. Coast Cruiser

    Coast Cruiser Senior Member

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    32 PSI seems too low for the 15" tire.

    But what do I know?

    Not a whole lot. Toyota won't hire me.
     
    #46 Coast Cruiser, Aug 17, 2016
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  7. booke02

    booke02 Active Member

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    Doesn't explain 4psi difference
     
    #47 booke02, Aug 17, 2016
  8. DonDNH

    DonDNH Senior Member

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    Times 4 tires per vehicle, times about annual vehicle sales. It mounts up.
     
    #48 DonDNH, Aug 17, 2016
  9. Coast Cruiser

    Coast Cruiser Senior Member

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    It seems your car would need higher tire pressure, because you have the full-size heavy spare and thus more weight?

    I need a nice woman to share a pizza with me. :D
     
    #49 Coast Cruiser, Aug 17, 2016
  10. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Yes but, it's seems a little nuts, all this fine tuning over a few pounds variation.
     
    #50 Mendel Leisk, Aug 17, 2016
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  11. Coast Cruiser

    Coast Cruiser Senior Member

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    I didn't know any Prius had a full-size spare.

    Not in the U.S. We get the compact donut. Why would Toyota put a heavy full-size wheel & tire in a car like a Prius?
     
    #51 Coast Cruiser, Aug 17, 2016
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  12. jdenenberg

    jdenenberg EE Professor

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    Since customers like me prefer a full size spare (I have a "compact" spare :( ).

    JeffD
     
    #52 jdenenberg, Aug 17, 2016
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  13. Dragon Rider

    Dragon Rider Active Member

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    The Prius is turning like my Ex!!! I think the Prius been in different country has something to do with the different numbers. Road are different.

    Posted via the PriusChat mobile app.
     
    #53 Dragon Rider, Aug 17, 2016
  14. ETP

    ETP 2021 Prime(Limit),24 Venza Limit,B52-D,G,F,H

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    15" or 17"? At how many miles on your tires?

    BTW/ I have yet to experience center tire wear on a Prius or Honda but that is just me and nobody else. Seems the MIJ/OEMs on Previous years stayed flat on the road at 42 PSI and 51 PSI. Too early to tell on my two 2106 Touring's with 6K and 4K each.
     
    #54 ETP, Aug 17, 2016
  15. raspy

    raspy Senior Member

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    Sorry, I was mistaken. I knew I had a spare tyre, but I'd assumed it was a full size as that's what my manual refers to when talking about tyre pressures (cars with full size spare, or those without). After viewing your reply, I checked my car, and I have a compact spare tyre, just like you guys :)
     
    #55 raspy, Aug 17, 2016
  16. ssdesigner

    ssdesigner Active Member

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    I need to go look at the tires on my Gen4 two so I can say that they are Toyo for sure.....but wow. The cabin noise in this car is MINIMAL compared to my 2009 Camry. I seriously had to semi-yell to be heard on the freeway in that car. I'm sure there is a quieter car, but for $25K?? Really people??
     

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    #56 ssdesigner, Aug 17, 2016
  17. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Anyone with a new car with spare, you owe it to yourself to pull it out and check the pressure. When we got ours, Pre-Delivery Inspection not withstanding, the spare was at 40 psi. :(

    Also, if you're ambitious: putting it on, for practice.
     
    #57 Mendel Leisk, Aug 17, 2016
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  18. Blizzard_Persona

    Blizzard_Persona Senior Member

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    I guess I lucked out for once...:p

    My new Prius was born with the Dunlop Enasaves...:)(y)


    No complaints here at all with my dunlops, I feel for all you folks that got the loud toyo's:(
     
    #58 Blizzard_Persona, Aug 17, 2016
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  19. krmcg

    krmcg Lowered Blizzard Pearl Beauty

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    My toyos pumped up to 42 all around are finer than frog's hair.
     
    #59 krmcg, Aug 17, 2016
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  20. Blizzard_Persona

    Blizzard_Persona Senior Member

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    That's good (y)!

    But...

    have been hearing lots of complaints on here about them from others though unfortunately.
     
    #60 Blizzard_Persona, Aug 17, 2016
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