DeVille tire pressure
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, DeVille tire pressure in Past Cadillac Vehicle Discussion; Yesterday I had an oil change at a Mobil 1 lube place. The "service guy", I won't call him a ...
  1. #1
    Tonyny's Avatar
    Tonyny is offline Cadillac Owners Fanatic
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    DeVille tire pressure

    Yesterday I had an oil change at a Mobil 1 lube place. The "service guy", I won't call him a mechanic, started putting air in the tires. I said hold on as I have 30lbs of air in them which is what's on the door label. 2003 DTS. He says "oh don't go by that as the tires need 45lbs of air!" I said no just leave it alone. 45 will go to 50 here in Florida in no time. I have Michelin's on the car. So I come here for opinions. What pressure do you guys keep your tires at?

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    ozark preacher is offline Cadillac Owners Member
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    Re: DeVille tire pressure

    33-35 all around. A lb or so less in summer as they will build up.

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    00 Deville's Avatar
    00 Deville is offline Cadillac Owners Connoisseur
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    Re: DeVille tire pressure

    Quote Originally Posted by ozark preacher View Post
    33-35 all around. A lb or so less in summer as they will build up.
    I'm right there also at 34 on all 4... 45 is a little crazy.

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    JimD is offline Cadillac Owners Connoisseur
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    Re: DeVille tire pressure

    My COLD tire pressure is 32 PSI front and 30 PSI rear with MY guage and MY compressor. Those numbers have worked well for my driving style and my rubber mileage for thirteen years.

    Donut spare is 60 PSI.

    PS; Avoid "lube places" if you possibly can.

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    ozark preacher is offline Cadillac Owners Member
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    Re: DeVille tire pressure

    PS; Avoid "lube places" if you possibly can.
    And a hearty "AMEN" to that.

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    Submariner409 is offline If it won't run, chrome it
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    Re: DeVille tire pressure

    The desired tire pressure is on the tire spec sticker on the driver's door.

    All tires have a "maximum cold inflation pressure" statement molded into the sidewall: this is the MAXIMUM allowable cold inflation pressure to be used for extreme high speed driving - over 100 mph.

    Normal passenger car pressures run from 30 to 35, with JimD's 32 psi being the optimum for ride quality, gas mileage, tire life, and handling: use a good dial type gauge and check/adjust pressures cold, never after driving, and DO NOT "bleed" hot tires: the pressure rise resulting from driving is part of the inflation equation.

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    Tonyny's Avatar
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    Re: DeVille tire pressure

    Thanks guys for your comments. I've been putting 30lbs all around since I had the car but this place insisted on 45lbs so "the tires won't wear out as fast". I wonder if I should notify Mobil about these clowns or would it matter? Also they used an oil filter called Service Champ. Anyone familiar with this filter? Thanks

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    Submariner409's Avatar
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    Re: DeVille tire pressure

    As you said the sticker calls for 30 psi. That's where I run mine for a soft Cadillac ride. 45 psi is nuts, which is right where that grease monkey should be kicked. It would not hurt to call the owner of that place. 45 psi will wear the center of your tires pretty quickly and I doubt they'd pay to replace them.

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    OffThaHorseCEO is offline Cadillac Owners Connoisseur
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    So everyone always says check the door stickers. Do tire manufacturer recommendations ever differ and if so, which do you follow?

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    Tonyny's Avatar
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    Re: DeVille tire pressure

    Quote Originally Posted by Ranger View Post
    As you said the sticker calls for 30 psi. That's where I run mine for a soft Cadillac ride. 45 psi is nuts, which is right where that grease monkey should be kicked. It would not hurt to call the owner of that place. 45 psi will wear the center of your tires pretty quickly and I doubt they'd pay to replace them.
    Yes I plan to. Thanks for confirming.

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    00 Deville's Avatar
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    Re: DeVille tire pressure

    Quote Originally Posted by OffThaHorseCEO View Post
    So everyone always says check the door stickers. Do tire manufacturer recommendations ever differ and if so, which do you follow?
    The door stickers reflect the numbers the GM engineers decided on when they considered comfort, handling, MPG's, tire wear, etc.. I run mine a little higher at 34 and sacrifice a little ride quality for improved tire wear. The max pressure numbers on the side of the tire are exactly that maximum tire pressure per the tire manufacturer... I really doubt that a tire manufacturer would ever go out on a limb and recommend different tire pressures than what GM recommended... remember the whole Ford Explorer / Firestone fiasco.

  14. #13
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: DeVille tire pressure

    Quote Originally Posted by OffThaHorseCEO View Post
    So everyone always says check the door stickers. Do tire manufacturer recommendations ever differ and if so, which do you follow?
    The door sticker value is the car manufacturer's recommendation based on extensive testing of the OEM tire selected on that particular car.

    A tire manufacturer will not make pressure recommendations because the same tire may be fitted on different size and weight cars of different makes.

    The only tire pressure statements generally made by the tire manufacturers are the maximum cold inflation pressure (molded into the sidewall) and the recommendation to "use the recommended pressures in your owner's manual" - along with frequent, manual gauge pressure checks by the owner.

    TPMS is for granny, not a car driver.

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    stoveguyy is offline Cadillac Owners Connoisseur
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    Re: DeVille tire pressure

    we got new car and 6 months later a message came on telling me to check pressure. tire was 25lbs. month later it came on again. found nail pushed down between treads. hard to see. thats why i missed it at first. i like tpms.

  16. #15
    JimD is offline Cadillac Owners Connoisseur
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    Re: DeVille tire pressure

    Quote Originally Posted by submariner409 View Post
    ....TPMS is for granny, not a car driver.
    TPMS is not only for granny. TPMS is a requirement per 49 CFR Part 571.

    TPMS is fall out from the DOT / NHTSA investigation of the unfortunate Ford truck based SUV rollovers of years ago.

    TPMS is not an option. Same as seatbelts and airbags among others.

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