Inflation - tire pressure – Cadillac 2007 User Manual

Page 460

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UTQGS (Uniform Tire Quality Grading
Standards):
A tire information system that
provides consumers with ratings for a tire’s
traction, temperature, and treadwear. Ratings are
determined by tire manufacturers using
government testing procedures. The ratings are
molded into the sidewall of the tire. See Uniform
Tire Quality Grading
on page 473.

Vehicle Capacity Weight: The number of
designated seating positions multiplied by 150 lbs
(68 kg) plus the rated cargo load. See Loading
Your Vehicle
on page 372.

Vehicle Maximum Load on the Tire: Load on an
individual tire due to curb weight, accessory
weight, occupant weight, and cargo weight.

Vehicle Placard: A label permanently attached to
a vehicle showing the vehicle’s capacity weight
and the original equipment tire size and
recommended inflation pressure. See “Tire and
Loading Information Label” under Loading
Your Vehicle
on page 372.

Inflation - Tire Pressure

Tires need the correct amount of air pressure to
operate effectively.

Notice: Do not let anyone tell you that
under-inflation or over-inflation is all right. It is
not. If your tires do not have enough air
(under-inflation), you can get the following:

Too much flexing

Too much heat

Tire overloading

Premature or irregular wear

Poor handling

Reduced fuel economy

If your tires have too much air (over-inflation),
you can get the following:

Unusual wear

Poor handling

Rough ride

Needless damage from road hazards

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