What PSI should i run for a long trip?
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Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, What PSI should i run for a long trip? in Cadillac SRX / XT5 Forums; I'm getting ready to take a 1500 mile round trip this weekend in the SRX. I have the 18" wheels ...
  1. #1
    subzero32 is offline Cadillac Owners Fanatic
    Automobile(s): 2004 SRX
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    What PSI should i run for a long trip?

    I'm getting ready to take a 1500 mile round trip this weekend in the SRX. I have the 18" wheels and running 36 PSI. What do you think I should run the PSI at for this trip?


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  3. #2
    JayT F1's Avatar
    JayT F1 is offline Cadillac Owners Member
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    Re: What PSI should i run for a long trip?

    I typically run a few PSI above the rating on the door jamb sticker (for spirited driving ) Except in the winter with cold weather I'll run the prescribed rating to prevent excessive tire wear on a softer winter tread compound. For my 20" wheels I'll do approx. 34psi front 36psi rear.


    You probably won't notice a difference in mileage or ride quality with a few PSI +/- If you grossly under fill, you'll suffer poor mileage and get tire wear at the edge where the sidewall meets the tread. If you inflate too much, you'll have a stiff ride, compromise handling characteristics, and get tread wear in the middle of the tire.

  4. #3
    bwilkins750 is offline Cadillac Owners Member
    Automobile(s): Escalade ESV
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    Re: What PSI should i run for a long trip?

    ^+1 I would leave it at 36psi

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