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Nw LRR tires but they set to 35 psi?

Discussion in 'Gen 3 Prius Main Forum' started by Jim Caldwell, Sep 14, 2019.

  1. bisco

    bisco cookie crumbler

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    one thing i like about pumping them up, i don't have to check them as often
     
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  2. Raytheeagle

    Raytheeagle Senior Member

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    @Grit is referring to the owners manual thread I believe where the common answer is to visit the dealer;).

    Or he could be hitting the bottle early this evening:cool:.

    I keep ours at 38 in the front and 36 in the back with a gauge I’ve had for years(y).
     
  3. Raytheeagle

    Raytheeagle Senior Member

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    Gives you time to do others things ;).

    Like respond to threads here(y).
     
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  4. bisco

    bisco cookie crumbler

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    exactly

    and drink good wine
     
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  5. Raytheeagle

    Raytheeagle Senior Member

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    You’ve progressed past the black box:p.

    Welcome to the club(y).
     
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  6. bisco

    bisco cookie crumbler

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    don't be a snob :oops:
     
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  7. Mendel Leisk

    Mendel Leisk Senior Member

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    I just check mine, haven't budged. Been at least a week since last check. :oops:
     
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  8. Raytheeagle

    Raytheeagle Senior Member

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  9. Raytheeagle

    Raytheeagle Senior Member

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    How many miles in the week:whistle:?

    Or did it move at all:p.
     
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  10. bisco

    bisco cookie crumbler

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    a week? i'm talking months, and i never get the tpms light :p
     
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  11. Raytheeagle

    Raytheeagle Senior Member

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    I haven’t check either the RX450h or or Primes tire pressures in months:cool:.

    Maybe I should:oops:.

    But either is at the dealer every other month due to mileage, and they are covered under the 25k maintenance plan, so I wasn’t too concerned yet(y).
     
  12. CR94

    CR94 Senior Member

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    Bumping up pressures a little will definitely improve mpg a little, and is unlikely to cause increased or uneven tire wear. Bumping it up a lot will run into the law of diminishing returns, among other issues.
     
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  13. sam spade 2

    sam spade 2 Senior Member

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    What is it that you are worried about.....exactly ??
     
  14. bisco

    bisco cookie crumbler

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    reduced mpg's
     
  15. sam spade 2

    sam spade 2 Senior Member

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    As has already been said, if you actually have LRR tires, jacking the pressure up will have a very small effect.
     
  16. bisco

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    no one has tested to know that
     
  17. The Electric Me

    The Electric Me Go Speed Go!

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    Also more importantly because it's the right thing to do.

    IMO...go by the PSI recommended by the VEHICLE manufacturer, not the Tire Manufacturer.

    It's pretty simple. The Max PSI on the tire, is the MAX PSI that the tire manufacturer is saying the tire can be inflated. But that number has NOTHING to do with the vehicle you are driving.
    When the tire was being produced, and that number was being put on the side of the tire? The manufacturer obviously had no idea what vehicle that tire would end up on. Tire manufacturers don't hire psychic's to predict what vehicle any tire is going to end up on.

    The manufacturer on the other hand? They know what vehicle they have designed. The manufacturers recommendation DOES have everything to do with the vehicle you are driving.

    Therefore I always recommend going by the Toyota, the Owners Manual, and the recommendation of the manufacturer.
     
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  18. Robert Holt

    Robert Holt Senior Member

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    I found a 20+ mile stretch of flat, 4-lane divided , non-interstate road driving between Tallahassee and Tampa in the western coast of Florida that I thought would be great for tests like that, especially in the middle of the night. The plan was to test changes in tire pressures and steady-state velocity to get objective data curves for both as the prevailing wind effects would tend to cancel somewhat by doing the 40-mile round trip. Plan was abandoned when Spouse strongly objected to spending all night driving up and down a deserted stretch of highway in rural Florida.
     
  19. bisco

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    sometimes, the mfg's motives don't align with the owner
     
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  20. bisco

    bisco cookie crumbler

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    yeah, we did that ride late at night with low fuel, i would not recommend it to anyone :cool: