
Downloaded from www.Manualslib.com manuals search engine 6. Remove all the  wheel 
nuts, 
and take off the 
flat tire. 
7. Remove any  rust or dirt 
from  the 
wheel bolts, 
mounting surfaces  and 
spare  wheel. 
A CAUTION: 
Rust or  dirt  on the  wheel,  or on  the  parts  to 
which 
it is fastened, can  make  the wheel nuts 
become  loose  after  a time. The wheel  could  come 
off  and  cause  an accident. When  you change a 
wheel,  remove  any rust  or  dirt  from the places 
where  the wheel  attaches  to  the  vehicle. In  an 
emergency,  you can use a cloth 
or a paper  towel 
to  do  this;  but be 
sure to use a scraper or wire 
brush  later, 
if you  need  to,  to get  all  the  rust  or 
dirt  off. 
I A CAUTION: 
Never  use  oil or grease on studs  or nuts. If you 
do, the  nuts  might come loose.  Your  wheel  could 
fall  off, causing 
a serious accident. 
I I 
5-30   

Downloaded from www.Manualslib.com manuals search engine What Kind of Oil to Use 
The  engine oil filler cap is located between the air 
cleaner  and engine  oil dipstick. 
Just fill 
it enough to  put the level  somewhere  in the 
proper operating range. Push the dipstick 
all the  way 
back in  when you’re  through.  Oils recommended for your vehicle can be identified 
by 
looking for the “Starburst” symbol.  This symbol 
indicates that the 
oil has  been  certified by  the American 
Petroleum Institute (API). 
Do not use  any oil  which 
does  not carry this Starburst  symbol. 
If you change  your  own oil, 
be sure  you  use  oil  that  has 
the  Starburst  symbol  on  the 
front 
of the  oil  container. 
If  you  have  your  oil 
changed  for you,  be  sure 
the 
oil put  into  your  engine 
is  American  Petroleum 
Institute  certified  for 
gasoline  engines. 
You should also  use the proper viscosity oil for your 
vehicle, as shown  in the following chart: 
6-12   

Downloaded from www.Manualslib.com manuals search engine When  to  Change  Engine Oil 
See if any  one of these is true  for you: 
0 Most  trips are less than 5 to 10 miles (8 to 16 km). 
This is particularly  important when outside 
temperatures are below freezing. 
Most trips include extensive  idling (such as  frequent 
driving  in stop-and-go  traffic). 
Most trips  are through  dusty areas. 
0 You frequently tow  a trailer  or use  a carrier on top  of 
your vehicle. 
The  vehicle is used  for delivery service, police, taxi 
Driving under these  conditions causes engine  oil to 
break  down sooner.  If any  one  of these  is  true for your 
vehicle, then  you need  to change  your oil and filter 
every 
3,000 miles (5 000 km) or 3 months -- whichever 
occurs first.  or 
other commercial application. 
If done  of them  is true,  change  the oil and  filter every 
7,500 miles (12 500 km) or 12 months -- whichever 
occurs  first. Driving a vehicle with  a fully warmed 
engine  under highway  conditions causes engine  oil to 
break down slower. 
What  to Do with  Used  Oil 
Did YOU know that used  engine oil contains  certain 
elements that may  be unhealthy  for  your skin and could 
even  cause  cancer? Don’t let used  oil stay  on your skin 
for  very long. Clean  your skin and nails  with soap and 
water, 
or a good hand cleaner.  Wash or properly throw 
away  clothing  or  rags  containing  used engine oil. (See 
the manufacturer’s warnings  about the use and disposal 
of  oil  products.) 
Used oil  can be 
a real threat  to  the environment.  If  you 
change  your own oil,  be  sure  to drain all free-flowing  oil 
from  the filter before disposal. Don’t  ever dispose  of oil 
by  putting it in the trash,  pouring it 
on the ground,  into 
sewers,  or into streams 
or bodies  of  water.  Instead, 
recycle  it by  taking 
it to a place that collects used oil.  If 
you  have a problem properly  disposing 
of your used  oil, 
ask your dealer, a service station  or a local recycling 
center  for  help. 
6-14   

Downloaded from www.Manualslib.com manuals search engine Automatic  Transmission  Fluid 
When to Check  and  Change 
A good time to check your automatic transmission fluid 
level is when the  engine  oil is changed. 
Change  both the  fluid  and  filter  every 
50,000 miles 
(83 
000 km)  if the vehicle’s GVWR is over  8,600  or 
if 
the vehicle is mainly  driven under one or more  of 
these conditions: 
0 In  heavy  city traffic where the outside temperature 
0 In hilly  or mountainous terrain. 
regularly reaches 
90°F (32°C)  or 
higher. 
0 When doing frequent trailer towing. 
0 Uses such as found  in taxi, police  or delivery service. 
If  your vehicle’s 
GVWR is not  over 8,600 and you do 
not  use your  vehicle under any 
of these  conditions,  the 
fluid  and  filter  do 
not require changing. 
See  “Scheduled Maintenance  Services” in the Index. 
How to Check 
.Because this  operation can be  a  little difficult, you 
may  choose  to  have this  done  at your GM dealer 
Service  Department. 
If  you  do it yourself,  be sure 
to follow  all the 
instructions here,  or you  could  get  a  false  reading 
on 
the dipstick. 
NOTICE: 
Too much or too  little  fluid  can  damage your 
transmission. Too much  can  mean  that  some  of 
the 
fluid could  come out and  fall  on hot  engine 
parts  or exhaust  system  parts,  starting  a  fire.  Be 
sure  to get  an  accurate  reading  if  you  check  your 
transmission 
fluid. 
6-16 
-   

Downloaded from www.Manualslib.com manuals search engine Engine Coolant 
The  cooling system in your vehicle is filled with  new 
DEX-COOL 
TM (orange-colored,  silicate-free)  engine 
coolant.  This  coolant is designed  to remain 
in your 
vehicle for 5 years  or 100,000 miles ( 166 000 km), 
whichever occurs first. 
The  following  explains your cooling  system and  how 
to 
add  coolant  when it is low. If you have a problem with 
engine  overheating,  see  “Engine Overheating”  in 
the Index. 
A 5060 mixture of water  and the proper coolant  for 
your vehicle will: 
0 Give  freezing protection  down to -34°F (-37°C). 
Give boiling protection  up  to 265 “F ( 129 O C). 
Protect against rust and  corrosion. 
0 Help  keep the proper engine temperature. 
Let the  warning  lights  and  gages  work  as  they  should. 
NOTICE: 
When  adding  coolant  it is important  that  you  use 
DEX-COOL TM (orange-colored,  silicate-free) 
coolant  meeting 
GM Specification 6277M. 
If silicated coolant is added  to the  system, 
premature  engine,  heater  core  or radiator 
corrosion  may  result.  In  addition,  the  engine  coolant 
will require  change  sooner -- at 
30,000 miles (50 000 km) or 24 months, 
whichever  occurs  first. 
6-20   

Downloaded from www.Manualslib.com manuals search engine What  to Use 
Use  a mixture  of  one-half 
clean water (preferably 
distilled)  and  one-half  DEX-COOL 
Rul (orange-colored, 
silicate-free)  antifreeze  that  meets 
GM Specification 
6277M, which  won’t  damage  aluminum  parts.  Use 
GM Engine  Coolant  Supplement  (sealer) (GM Part 
No. 3634621) with  any  complete  coolant  change.  If  you 
use  this  mixture,  you  don’t  need 
to add  anything  else. 
’/d CAUTION: 
Adding  only plain  water  to  your  cooling  system 
can  be dangerous.  Plain water,  or some  other 
liquid like  alcohol, can boil  before  the  proper 
coolant  mix  will.  Your  vehicle’s  coolant warning 
system 
is set  for  the  proper  coolant mix. With 
plain  water  or the  wrong  mix, your  engine could 
’ get too hot  but you  wouldn’t  get  the  overheat 
warning.  Your engine could  catch  fire  and  you or 
others  could  be  burned. Use 
a 50/50 mix of clean 
water  and 
DEX-COOL TM (orange-colored, 
silicate-free)  antifreeze. 
6-21   

Downloaded from www.Manualslib.com manuals search engine Section 7 Maintenance Schedule 
IMPORTANT: 
KEEP  ENGINE OIL 
AT THE PROPER 
,EVEL  AND CHANGE A: 
RECOMMENDED 
This  section  covers  the maintenance  required for your 
vehicle.  Your vehicle  needs  these  services  to  retain its 
safety, dependability  and emission  control  performance. 
GP” m 
Protection 
Plan 
Have you purchased  the GM Protection  Plan?  The Plan 
supplements 
your new  vehicle  warranties.  See your 
Wurranty and  Owner  Assistance  booklet, or your 
GM dealer for details. 
Introduction 
Your Vehicle and the Environment 
Proper  vehicle  maintenance not only  helps to keep your 
vehicle 
in good  working  condition,  but also  helps the 
environment.  All recommended  maintenance procedures 
are  important.  Improper vehicle maintenance  can  even 
affect  the quality 
of the  air we breathe.  Improper  fluid 
levels  or  the wrong  tire inflation  can  increase 
the level 
of emissions  from  your  vehicle. To help protect  our 
environment,  and 
to keep  your  vehicle in good 
condition,  please  maintain 
your vehicle properly. 
7-1   

Downloaded from www.Manualslib.com manuals search engine Maintenance  Schedule 
I Short Trip/City  Definition -- Gasoline Engines 
Follow the Short  TripKity  Maintenance  Schedule if any 
one  of these  conditions  is true for your vehicle: 
Most trips  are  less than 5 to 10 miles (8 to 16 km). 
I 
This is particularly  important when outside 
temperatures are  below  freezing. 
Most trips include  extensive  idling  (such as frequent 
driving  in stop-and-go  traffic). 
Most  trips are  through dusty areas. 
You frequently tow  a trailer  or use  a  carrier on top of 
You frequently tow  a  trailer or use a carrier  on top of 
your vehicle.  (With some models,  you should never 
tow  a trailer.  See “Towing  a Trailer”  in 
the Index.) 
If the vehicle is used  for delivery  service, police, taxi 
or  other commercial application. 
your vehicle. 
One of the reasons you should 
follow  this schedule (f 
you operate your vehicle  under  any  of these  conditions 
is that  these  conditions  cuuse engine  oil to break 
down soonex 
Short  Trip/City  Intervals -- Gasoline Engines 
Every 
3,000 Miles  (5 000 km): Engine  Oil and Filter 
Change  (or 
3 months, whichever occurs  first).  Chassis 
Lubrication  (or 
3 months, whichever  occurs  first). 
Drive 
Axle Service  (or 3 months, whichever 
occurs  first). 
1 
At 6,000 Miles (10 000 km) -- Then  Every 
12,000  Miles 
(20 000 km): Tire  Rotation. 
Every  15,000  Miles  (25 000 km): Air Cleaner Filter 
Inspection, 
if driving  in dusty conditions.  Shields and 
Underhood  Insulation Inspection  (GVWR above 
8,500 Ibs.  only). Thermostatically  Controlled  Engine 
Cooling  Fan Check  (or  every 
12 months, whichever 
occurs  first). Front Wheel Bearing Repack  (or at each 
brake relining, whichever  occurs  first). 
Every 30,000 Miles (50 000 km): Air Cleaner  Filter 
Replacement. Fuel Filter Replacement. 
Every 50,000 Miles (83 000 km): Automatic 
Transmission  Service (vehicles over 
8600 GVWR 
or driven under  severe  conditions  only).