Pontiac g8 Automobile User Manual


 
If you overfill the tire, release air
by pushing on the metal stem
in the center of the tire
valve. Recheck the tire pressure
with the tire gage.
Be sure to put the valve caps
back on the valve stems.
They help prevent leaks by
keeping out dirt and moisture.
High-Speed Operation
{ CAUTION
Driving at high speeds, 100 mph
(160 km/h) or higher, puts an
additional strain on tires. Sustained
high-speed driving causes
excessive heat build up and can
cause sudden tire failure. You
could have a crash and you or
others could be killed. Some
high-speed rated tires require
inflation pressure adjustment for
high speed operation. When speed
limits and road conditions are such
that a vehicle can be driven at high
speeds, make sure the tires are
rated for high speed operation, in
excellent condition, and set to the
correct cold tire inflation pressure
for the vehicle load.
Vehicles with P245/45R18 96V,
245/45R18 96V, or 245/40R19 94W
size tires, require inflation pressure
adjustment when driving the
vehicle at speeds of 100 mph
(160 km/h) or higher. Use the
following chart to determine the cold
tire inflation pressure when
operating the vehicle under
high-speed conditions.
Vehicle Service and Care 9-51