Page 265 of 356

When It’s Time for New  Tires 
One way to tell  when  it’s 
time  for new  tires  is to 
check  the treadwear 
indicators,  which will 
appear  when  your  tires have 
only  1/16 inch  (1.6  mm) or 
less  of tread remaining. 
You  need  a new  tire if  any 
of the following statements 
are  true: 
You  can  see  the  indicators at three  or more places 
around  the tire. 
You  can  see  cord or  fabric  showing through the 
tire’s  rubber. 
The  tread  or sidewall is cracked,  cut or snagged  deep 
enough  to show  cord  or  fabric. 
The tire has a  bump,  bulge  or  split. 
The tire has a puncture,  cut or other  damage  that 
can’t  be repaired  well  because  of the  size or location 
of  the  damage. 
Buying  New  Tires 
-To  find out  what kind and size  of tires  you  need,  look at 
the  Tire-Loading  Information  label. 
The tires installed  on  your vehicle when it was  new  had 
a  Tire  Performance Criteria Specification  (TPC Spec) 
number  on  each tire’s  sidewall.  When  you  get  new  tires, 
get  ones  with  that same TPC Spec  number.  That way 
your  vehicle will continue to  have tires that  are designed 
to  give  proper endurance, handling,  speed rating, 
traction, ride  and other things during  normal service on 
your  vehicle. 
If your  tires have an all-season  tread 
design, the TPC  number will be followed  by  an 
“MS” 
(for mud  and  snow). 
If  you  ever replace  your tiies with  those  not having a 
TPC  Spec  number,  make  sure they  are the  same  size, 
load  range,  speed rating  and construction type (bias, 
bias-belted  or radial) 
as your original tires. 
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        Page 266 of 356
, .. .. .. .. I I 
Mixing tires could  cause  you  to  lose  control while 
driving. 
If you  mix  tires of different  sizes or types 
(radial .and  bias-belted  tires), the vehicle  may  not 
handle properly,'and  you  could  have 
a crash. 
Using  tires of different  sizes  may  also  cause 
damage to  your  vehicle.  Be sure  to use  the same 
size  and  type  tires on all  wheels. 
It's all right to drive  with your  compact  spare, 
though.  It was  developed  for use 
on your  vehicle. 
Uniform Tire Quality Grading 
The following  information  relates  to  the  system 
developed  by  the  United  States National  Highway 
Traffic  Safety  Administration,  which  grades  tires  by 
treadwear,  traction  and  temperature  performance.  (This 
applies  only  to  vehicles  sold  in  the  United',States.)  The 
grades  are  molded  on the  sidewalls 
of most  passenger 
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        Page 267 of 356

Traction --,A, B, C 
The traction grades,  from highest to lowest,  are A, B, 
and C, and  they represent  the tire’s  ability  to stop  on  wet 
pavement  as measured  under  controlled conditions 
’ 
on specified government test surfaces  of asphalt 
and  concrete. 
A tire marked C may  have  poor 
traction performance. 
Warning:  The traction grade assigned to this tire  is based 
on  braking (straightahead) traction tests and  does  not 
include cornering (turning) traction. 
Temperature -- A, B, C 
The  temperature grades  are A (the highest), B, and C, 
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 rriinimum  required  by  law. 
. representing the tire’s resistance  to the generation  of 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. 
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. 
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        Page 268 of 356

Whmd :Reglacanent 
Replace any  wheel  that  is  bent,  cracked, or badly  rusted 
or  corroded.  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 
Oldsmobile  retailer if any  of these  conditions exist. 
Your  retailer  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. 
If you  need  to replace  any  of your  wheels,  wheel  bolts 
or  wheel  nuts,  replace them  only  with  new 
GM original 
equipment 
parts. This  way,  you  will  be sure to  have  the 
right  wheel,  wheel  bolts  and  wheel  nuts  for your 
Oldsmobile  model. 
L 
Using  the wrong  replacement  wheels,  wheel  bolts 
or  wheel  nuts on your  vehicle  can  be  dangerous. 
It  could  affect  the brakin.g  and handling  of your 
vehicle,  make your tires  lose air and  make  you 
lose  control. 
You could  have a collision in which 
you  or others  could  be  injured. Always  use 
the correct  wheel,  wheel  bolts  and wheel  nuts 
for  replacement. 
NOTICE: 
The  wrong  wheel  can  also  cause  problems  with 
bearing  life, brake  cooling,  speedometer  or 
odometer calibration, headlamp  aim, bumper 
height,  vehicle  ground clearance and  tire or tire 
chain clearance to the  body and chassis. 
See “Changing  a Flat Tire”  in  the  Index for more 
information. 
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        Page 269 of 356
.. 
Putting a used  wheel on your vehicle  is 
dangerous. 
You can’t  know  how  it’s  been  used  or 
how  many  miles 
it’s .been  driven.  It could fail 
suddenly  and cause an accident. If you have  to 
replace 
a wheel,  use a new GM original 
equipment  wheel. 
NOTICE: 
If yodr Oldsmobile has P215/60R16 or 
‘P225/60R16 size tires,  don’t  use  tire chains. 
They  can damage  yqur vehicle. 
If you  have  ‘other tires,  use  tire chains only where 
legal  and only  when  you  must.  Use  only 
SAE 
Class “S” type  chains  that  are  the  proper  size for 
.your  tires. ‘Install  them 
on the  front  tires and 
tighten  them 
as tightly as possible  with  the ends 
securely  fastened.  Drive  slowly  and follow  the 
chain  manufacturer’s  instructions. 
If you can 
hear  the  chains contacting  your vehicle,  stop 
and  retighten  them. 
If the contact  continues, 
slow  down  until it stops.  Driving  too.  fast or 
spinning  the wheels  .with  chains 
on will damage 
your  vehicle.  
     
        
        Page 270 of 356

Appearance  Care 
Remember,  cleaning  products  can  be  hazardous. Some 
are  toxic.  Others  can burst  into flame 
if you  strike a 
I ’ match  or get  them  on a hot  part  of the  vehicle.  Some are 
dangerous  if  you  breathe  their fumes in  a  closed  space. 
When  you  use  anything  from a  container  to  clean  your 
1 Oldsmobile,  be sure  to follow  the  manufacturer’s 
1 warnings  and  instructions.  And  always  open  your  doors 
or  .windows  when  you’re  cleaning  the  inside. 
Never use  these  to  clean  your  vehicle: 
Gasoline 
Benzene 
Naphtha  Carbon  Tetrachloride 
Acetone 
Paint  Thinner 
Turpentine 
Lacquer  Thinner 
Nail  Polish  Remover 
They  can  all  be-hazardous 
-- some more  than 
others 
-- and  they  can  all  damage your  vehicle,  too.  Don’t  use  any  of  these  unless  this  manual  says  you  can. 
In  many  uses,  these  will  damage  your  vehicle: 
0 Alcohol 
0 Laundry  Soap 
0 Bleach 
0 Reducing  Agents 
Cleaning  the  Inside of Your  Oldsmobile 
Use  a  vacuum  cleaner  often  to 
get rid  of  dust  and  loose 
dirt.  Wipe  vinyl  or leather  with.a.clean,  damp  cloth. 
Your  Oldsmobile  retailer  has  two 
GM cleaners: a 
solvent-type  spot  .lifter  and  a  foam-type  powdered 
cleaner.  They  will  clean  normal  spots  and  stains  very 
well. 
Do not  use  them  on  vinyl  or leather. 
Here  are  some  cleaning  tips: 
0 Always  read  the  instructions  on the  cleaner  label. 
0 Clean  up  stains  as  soon  as you  can -- before  they  set. 
0 Use  a  clean  cloth  or  sponge,  and  change  to  a  clean  area 
0 Use  solvent-type  cleaners in a  well-ventilated  area 
0 If  a  ring forms after  spot  cleaning,  clean  the  entire 
often. 
A soft brush  may  be  used  if stains are stubborn. 
only.  If  you  use  them,  don’t  saturate  the  stained  area. 
area  immediately  or it will  set. 
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        Page 271 of 356

Using  Foam-Type  Cleaner  on  Fabric 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
10. 
11. Vacuum 
and brush  the area to remove  any 
loose  dirt. 
Always  clean a whole  trim  panel or section.  Mask 
surrounding trim along stitch  or  welt lines. 
Mix  Multi-Purpose  Powdered Cleaner following 
the  directionson  the  container label. 
Use  suds  only  and  apply with a clean  sponge. 
Don’t  saturate the  material. 
Don’t  rub it  roughly. 
As soon  as you’ve cleaned the section, use a  sponge 
to remove the  suds. 
Rinse the section  with a clean,  wet sponge. 
Wipe 
off what’s  left with  a slightly damp  paper 
towel or  cloth. 
Then  dry it immediately  with a blow  dryer. 
Wipe  with  a clean cloth. 
I 
Using Solvent-Qpe  Cleaner  on  Fabric 
First, see if  you have to use solvent-type cleaner  at all. 
Some spots  and stains  will clean 
off better  with just 
water‘  and  mild  soap. 
lr you  need  to  use  a solvent: 
0 
0 
Gently  scrape excess  soil  from the  trim  material  with 
a clean, dull knife  or  scraper.  Use  very  little cleaner, 
light pressure  and clean cloths (preferably 
cheesecloth). Cleaning  should start at the outside  of 
the  stain, “feathering”  toward the center.  Keep 
changing  to a clean section 
of the cloth. 
When  you  clean  a stain 
from fabric,  immediately  dry  the 
area  with  a blow  dryer  to  help  prevent  a cleaning  ring. 
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        Page 272 of 356

Special  Cleaning  Problems 
Greasy  or  Oily  Stains 
Stains  caused  by  grease,  oil,  butter,  margarine,  shoe 
polish,  coffee  with  cream,  chewing  gum,  cosmetic  creams,  vegetable  oils,  wax  crayon,  tar  and  asphalt  can 
be  removed  as  follows: 
1. Carefully  scrape  off  excess  stain. 
2. Follow  the  solvent-type  instructions  described  earlier. 
3. Shoe  polish,  wax  crayon, tar and  asphalt  will  stain  if 
left  on  a  vehicle’s  seat  fabric.  They  should  be  removed  as  soon  as  possible.  Be careful,  because  the  cleaner 
will  dissolve  them  and  may  cause  them  to  spread. 
Non-Greasy  Stains 
Stains  caused  by catsup,  coffee  (black),  egg,  hit, fruit 
juice, 
milk, soft  drinks,  wine,  vomit,  .urine  and  blood  can 
be  removed  as  follows: 
1. Carefully  scrape  off  excess  stain,  then  sponge  the 
soiled  area  with  cool  water. 
2. If  a  stain  remains,  follow  the  foam-type  instructions 
described  earlier. 
3. If  an  odor  lingers  after  cleaning  vomit  or  urine, 
treat  the  area  with  a  waterhaking soda  solution: 
1 teaspoon (5 ml)  of  baking  soda  to 1 cup (250 ml) 
of  lukewarm  water. 
4. If  needed,  clean  lightly  with  solvent-type  cleaner. 
Combination  Stains 
Stainscaused  by  candy, ice cream,  mayonnaise,  chili 
sauce  and  unknown  stains  can  be  removed  as  follows: 
Carefully  scrape  off  excess  stain,  then  clean  with 
If  a  stain  remains,  clean  it with  solvent-type  cleaner. 
cool  water  and  allow 
to 
dry. 
6-52