Chevrolet 2008 Impala Owner's Manual page 302

(E) Tire Ply Material
:
number of plies in the sidewall and under
the tread.
(F) Uniform Tire Quality Grading (UTQG)
Tire manufacturers are required to grade
tires based on three performance factors:
treadwear, traction, and temperature resistance.
For more information see Uniform Tire Quality
Grading on page 5-73.
(G) Maximum Cold Inflation Load Limit
Maximum load that can be carried and the
maximum pressure needed to support that load.
5-56
The type of cord and
:
:
Compact Spare Tire Example
(A) Temporary Use Only
or temporary use tire has a tread life of
approximately 3,000 miles (5 000 km) and should
not be driven at speeds over 65 mph (105 km/h).
The compact spare tire is for emergency use when
a regular road tire has lost air and gone flat.
If your vehicle has a compact spare tire,
see Compact Spare Tire on page 5-89 and If a
Tire Goes Flat on page 5-77.
The compact spare tire
: