# Non OEM tire sizes

**URL:** <https://community.cartalk.com/t/non-oem-tire-sizes/25396>\
**Category:** The Show\
**Created:** [January 23, 2009, 5:54pm UTC](https://community.cartalk.com/t/non-oem-tire-sizes/25396 "2009-01-23T17:54:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SIXMOONS](https://avatars.discourse-cdn.com/v4/letter/s/ecae2f/32.png) [@SIXMOONS](https://community.cartalk.com/u/SIXMOONS)\
**Post date:** [January 23, 2009, 5:54pm UTC](https://community.cartalk.com/t/non-oem-tire-sizes/25396/1 "2009-01-23T17:54:08Z")

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Will I damage my vehicle, a 2003 Cadillac Seville, If I install 4 225/60R16 tires instead of the OEM 235/60R16 tires? The 225’s are less than 1/2 inch in diameter smaller than the 235’s.

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**Author:** ![Whitey](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/whitey/32/24680_2.png) [@Whitey](https://community.cartalk.com/u/Whitey)\
**Post date:** [January 23, 2009, 7:10pm UTC](https://community.cartalk.com/t/non-oem-tire-sizes/25396/2 "2009-01-23T19:10:40Z")

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What does your owner’s manual say about the proper tire size?

I don’t know if it they will cause any damage, but they will lead to inaccurate speedometer and odometer readings. The odometer will read more miles than you actually put on the car.

Why not just go with the proper size?

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [January 23, 2009, 8:50pm UTC](https://community.cartalk.com/t/non-oem-tire-sizes/25396/3 "2009-01-23T20:50:16Z")

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This post is also in the Repair and Maintenance section.