Question about 2003 Oldsmobile Silhouette

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Can I put 215/70/R15 winter tires from 2002 Montana on my 2003 Silhouette?

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  • Anonymous May 11, 2010

    Hi, What is the tire size of the Silhouette ? Thanks, RSMITH972278

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Yes you can, basically you can just about put any size tire on as long as it fit however 215 is the height of the tires, by putting smaller or taller tires than recommended by the manufacture will effect you speed odometer. 70 is the width of the tires, the wider the better traction and 15 is the size of the tires that will fit the rims. Here is example...

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference 215/75-15 6.3in 13.8in 27.7in 87.0in 728 0.0% 225/75-15 6.6in 14.1in 28.3in 88.9in 713 2.1%

Posted on Oct 21, 2009

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There is a great tire conversion chart online at http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=53

Posted on Nov 05, 2011

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Hi!

195(width in mm)/60(sidewall height in % of width) R15(rim diameter)

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