Tire Sidewall Labeling - Saturn 2007 Ion Owner's Manual

If you choose to use winter tires:
•
Use tires of the same brand and tread type on
all four wheel positions.
•
Use only radial ply tires of the same size, load
range, and speed rating as your original
equipment tires.
Winter tires with the same speed rating as your
original equipment tires may not be available for H,
V, W and ZR speed rated tires. If you choose
winter tires with a lower speed rating, never
exceed the tire's maximum speed capability.

Tire Sidewall Labeling

Useful information about a tire is molded into its
sidewall. The examples below show a typical
passenger vehicle tire and a compact spare tire
sidewall.
330
Passenger (P-Metric) Tire Example
(A) Tire Size: The tire size is a combination of
letters and numbers used to define a particular
tire's width, height, aspect ratio, construction type,
and service description. See the "Tire Size"
illustration later in this section for more detail.