tire size difference?
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Suspension, Brakes and Tires Discussion, tire size difference? in Item Specific Cadillac Discussion; Hello Group, I have an '89 Fleetwood Sedan and am looking for new tires. The recommended size is 205/70/R15, but ...
  1. #1
    DrBassSme is offline Cadillac Owners Member
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    tire size difference?

    Hello Group, I have an '89 Fleetwood Sedan and am looking for new tires. The recommended size is 205/70/R15, but I'm looking at a set 205/75/R15. I've been told the 205/75 will work. But what I'm worried about is the clearance in the wheelwell. Am I safe to use the 205/75 size and not have to worry about hitting the wheel wells, or should I stick with the 205/70? And are there any other concerns with the larger wheel such as milage vs gas efficiency? Thank you for any advise!

    ~Steve E.

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  3. #2
    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
    Automobile(s): 1968 Cadillac Sedan deVille, 1994 Chevrolet G20
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    Re: tire size difference?

    I'm pretty sure you'll be ok. The only major concern is MAYBE your speedometer will be off by a MPH or so. On highway driving there's a chance it might very slightly increase your mileage too, the tire is bigger so the car goes farther per revolution. I doub't it will be anything notable though.

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