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Tire pressure

Discussion in 'Gen 2 Prius Main Forum' started by perryma, Jan 30, 2008.

  1. perryma

    perryma New Member

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    Nitro tires

    I took my car in to have the nitrogen put in and told them to pump them up to the tire's max. Well my tires have 44 max in the front and the back tires are 55. These were on the car when I bought it. The tireman wouldn't do it and said 40 max was all they needed or I would feel like I was riding in a horse drawn wagon. Any takes on this? My tires are the same size by the way.
     
  2. qbee42

    qbee42 My other car is a boat

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    The front tires should be 2 psi higher than the rear. This is because of the weight distribution in the Prius.

    Tom
     
  3. perryma

    perryma New Member

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    I hadn't learned anything new all day...thanks! That makes since with the two engines.
     
  4. richard schumacher

    richard schumacher shortbus driver

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    [deleted for Y-B-D content]
     
  5. lil_red_Prius

    lil_red_Prius Rollin' with my toy...

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    I just joined the "44/42 club" here.

    I have noticed an immediate jump in MPG. When I got to my tires they were pretty much 38-38.
     
  6. strider5

    strider5 New Member

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    how rough is 44/42 compared to like 40/38?

    I just picked up my car this week and they were like 35-36. bumping to 40/38 doesnt feel too rough to me. should I bump to 44/42?
     
  7. lil_red_Prius

    lil_red_Prius Rollin' with my toy...

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    I'm only my second day on the higher pressure.

    If there is a difference in ride, I haven't noticed it.
     
  8. JimN

    JimN Let the games begin!

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    At 45 I haven't noticed a difference.
     
  9. edthefox5

    edthefox5 Senior Member

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    We have 2 engines? WOO HOO!
     
  10. jammin012

    jammin012 The man behind The Man

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    YES, the one that makes us go and the one that makes us stop.
     
  11. patsparks

    patsparks An Aussie perspective

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    Have you noticed the tyres have super low rolling resistance?
     
  12. perryma

    perryma New Member

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    Whatever on the engines, I thought there was one gas and one electric ;all I know is that something burns gas and something runs on electricity and I get great mpg.
     
  13. ze_shark

    ze_shark Junior Member

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    I juste checked my tire pressures (new car out of the dealership), and they have 43-44 front, 42-43 rear vs the 35/33 manufacturer recommendation. I get the point about rolling resistance, so is it an established fact that 44/42 is the best compromise between mileage, even wear and cornering/braking grip ?
     
  14. perryma

    perryma New Member

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    I joined the 44/42 club and seem to be getting better mpgs. I think the ride is the same, mayber smoother on the interstate. MY car kind of road like a buggy anyway.
     
  15. Tree Hugger

    Tree Hugger New Member

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    I agree, these cars aren't known for their "luxouriously" smooth ride. So I pumped mine up to 45/45:D on a set of Goodyear Assurance tires (max 44psi) We'll see how well they do in this nice Chicago winter we're having:eek: