1994 Chevrolet S10 Pickup Owner's Manual - Page 275

Temperature

-A,

By

C

The

temperature

grades

are

A

(the

highest),

B,

and

C,

representing

the

tire’s

resistance

to

the

generation

of

heat

and its

ability

to

dissipate

heat

when

tested

under

controlled

conditions

on

a

specified

indoor

laboratory

test

wheel.

Sustained

high

temperature

can

cause

the

material

of the

tire

to

degenerate

and

reduce

tire

life,

and

excessive

temperature

can

lead

to

sudden

tire

failure.

The

grade

C

corresponds

to

a

level

of

performance

which

all

passenger

car

tires

must

meet

under

the

Federal

Motor

Vehicle

Safety

Standard

No.

109.

Grades

B

and

A

represent

higher

levels of

performance

on

the

laboratory

test

wheel

than

the

minimum

required

by

law.

Warning: The temperature

grade

for

this

tire is established for a

tire

that

is

properly

inflated

and

not

overloaded.

Excessive

speed,

underinflation,

or

excessive

loading, either separately

or

in

combination,

can

cause

heat

buildup

and possible tire failure.

These

grades

are

molded

on

the

sidewalls of passenger

car

tires.

While the tires

availableas standard

or

optional

equipment

on

General

Motors

vehicles

may

vary

with

respect

to

these

grades,

all such

tires

meet

General

Motors

performance

standards

and

have

been

approved

for use

on

General

Motors

vehicles.

All

passenger

type

(P

Metric)

tires

must

conform

to Federal safety

requirements

in

addition

to these

grades.

Wheel

Alignment

and

Tire

Balance

The

wheels on your

vehicle

were

aligned

and

balanced

carefully

at

the

factory

to

give

you

the

longest

tire

life and

best

overall

performance.

In

most

cases,

you

will

not

need

to have

your

wheels

aligned

again.

However,

if

you

notice

unusual

tire

wear

or

your

vehicle

pulling

one

way

or

the other,

the

alignment

may

need

to be

reset. If

you notice

your

vehicle

vibrating

when

driving

on

a

smooth

road,

your

wheels

may

need

to

be

rebalanced.

Wheel

Replacement

Replace

any

wheel

that

is

bent,

cracked

or

badly

rusted.

If

wheel

nuts

keep

coming loose, the

wheel,

wheel

bolts,

and

wheel

nuts

should

be

replaced.

If

the

wheel

leaks

air,

replace

it

(except

some

aluminum

wheels,

which

can

sometimes

be

repaired). See your GM dealer if

any

of

these conditions

exist.

Your dealer

will

know

the

kind

of wheel

you need,

Each

new wheel should

have

the

same

load

carrying

capacity,

diameter,

width,

offset,

and

be mounted

the

same

way

as the

one it replaces.

6-57

1994 Chevrolet S10 Pickup Owner's Manual - Page 275

1994 Chevrolet S10 Pickup Manual

Page 275 highlights