What's up withe the tires on this car?
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Cadillac ATS General Discussion Forum Discussion, What's up withe the tires on this car? in Cadillac ATS Discussion Forums; I just got a 2013 AWD Premium with 18's and when you look at the side profile the tires seem ...
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    Audioi's Avatar
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    What's up withe the tires on this car?

    I just got a 2013 AWD Premium with 18's and when you look at the side profile the tires seem to be lost in the wheel wells! It appears this car needs a larger overall tire?? And why the staggered air pressure? 35 front, 40 rear???
    Call me inquisitive but...

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    SLA
    SLA is offline Cadillac Owners Fanatic
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    Re: What's up withe the tires on this car?

    For one thing, they try to keep the speedo accurate by not using huge tires. Putting tires with bigger sidewalls will also make the car more floaty and less grounded to the ground.

    Tire inflation recommendations are based upon the weight distribution of the car. The car with no passengers may have a 50/50 weight balance, but not when passengers are in it. BMW recommends less pressure in the front than the back for my M3, so Caddy is not crazy.
    rustybear3 likes this.

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    Audioi's Avatar
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    Re: What's up withe the tires on this car?

    Sounds good to me. Is the appearance just me or does it still look a bit odd?

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    David is offline Cadillac Owners Fanatic
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    Re: What's up withe the tires on this car?

    My Allanté, which is FWD, has 28 psi front and 24 psi rear.

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    M5eater's Avatar
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    Re: What's up withe the tires on this car?

    Higher inflation is used to reduce sidewall deflection on the tires powering the car= better handling characteristics and more contact patch on the roadway.

    Because you have a Premium AWD, I'm fairly certain you have the wider profile rims on standard 235 tires all around, so it might look a bit stretched(or not, just a guess).

    IE, Premium FE3 trim RWD ats's have staggered tire sizes of 235 front/255 rear.

    You still have the pressure differences because this is a largely RWD biased AWD system.

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    huna is offline Cadillac Owners Member
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    Re: What's up withe the tires on this car?

    Quote Originally Posted by Audioi View Post
    Sounds good to me. Is the appearance just me or does it still look a bit odd?
    Indeed the appearance is a little odd. This was discussed a couple times back in the fall. I'm used to it by now, but I still don't like it.

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    Re: What's up withe the tires on this car?

    OK so its not just me, i feel better (sort of).

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    M5eater's Avatar
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    Re: What's up withe the tires on this car?

    Quote Originally Posted by huna View Post
    Indeed the appearance is a little odd. This was discussed a couple times back in the fall. I'm used to it by now, but I still don't like it.
    excuse me Mr. 2,147,483,722 posts. Could I have an autograph?

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    Hoosier Daddy's Avatar
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    Re: What's up withe the tires on this car?

    Quote Originally Posted by M5eater View Post
    excuse me Mr. 2,147,483,722 posts. Could I have an autograph?
    You're easily impressed. That's not quite even a million posts per day although flood control may have kept the count down.

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    Re: What's up withe the tires on this car?

    According to my onstar report, the car is supposed to have 32 psi front and 35 psi rear, i believe this to be a safety liability thing from GM to promote understeer which is the safer condition for less experienced drivers, 35 psi all around should be more fun, and possibly quicker, i've seen in some BMW places that BMW does the same thing, but people who play harder with their BMW's go 35 all around. and as a side note i've had the car in the dealer for paint buffing (hood scratched from dealer they got car from), steering wheel replaced (stitches unraveled 2 to 3 inches and growing), HVAC tapping calibration, oil change, and HVAC update TSB, so in 6 visits each time my invoice had a line stating tire pressures checked and set to 35 all around.

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    Re: What's up withe the tires on this car?

    My premium AWD ATS is both 40 psi front and rear...

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    Re: What's up withe the tires on this car?

    40 all around rides firm to say the least!

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    Re: What's up withe the tires on this car?

    Quote Originally Posted by Hoosier Daddy View Post
    You're easily impressed. That's not quite even a million posts per day although flood control may have kept the count down.
    Indeed, a paultry 890K PPD, but still, it's something.

    I didn't know 2.1 billion could be condensed down into 75 (his actual post count) I need to work on my quantum mechanics.

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    Re: What's up withe the tires on this car?

    Quote Originally Posted by M5eater View Post
    Indeed, a paultry 890K PPD, but still, it's something.

    I didn't know 2.1 billion could be condensed down into 75 (his actual post count) I need to work on my quantum mechanics.
    Maybe they ran the 2.1 billion thru the document analyzer from the Foundation Trilogy.

    Or if it IS a quantum thing maybe he had 75 UNTIL people like you looked at them.

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    huna is offline Cadillac Owners Member
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    Re: What's up withe the tires on this car?

    Quote Originally Posted by Hoosier Daddy View Post
    Maybe they ran the 2.1 billion thru the document analyzer from the Foundation Trilogy.

    Or if it IS a quantum thing maybe he had 75 UNTIL people like you looked at them.
    75 posts in THIS FORUM alone. My 2004 CTS-V must've generated a billion just right there.

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