Page 225 of 340

When  to  Change  Engine  Oil 
See if any  one of these  is true  for  you: 
0 
0 
0 
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. 
You  frequently  tow a  trailer  or use  a  carrier  on top  of 
your  vehicle. 
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  comes  first. 
If  none  of them  is  true,  change 
the oil and  filter  every 
7,500 miles  (12 500 km)  or  12  months -- whichever 
comes  first. 
Engine  Coolant  Heater 
An  engine  coolant  heater  can be a big help  if you  have 
to  park  outside 
in very cold weather, 0 OF (- 18 O C)  or 
colder.  If your vehicle  has  this  option,  see  “Engine 
Coolant  Heater” in  the  Index. 
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  retailer, a  service  station or 
a local recycling 
center  for  help. 
- 
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        Page 226 of 340
Air Cleaner 
Refer to the Maintenance  Schedule 
replace 
the air filter.  to determine when to 
See  “Scheduled Maintenance Services” 
in the Index. 
I NOTICE: 
If the air cleaner  is off, a  backfire  can  cause  a 
damaging  engine  fire.  And,  dirt  can  easily  get 
into  your  engine,  which 
will damage it. Always 
have  the  air cleaner  in  place  when  you’re  driving. 
To Check  or Replace  the Air Filter 
1. Unscrew  the four  Phillips-head  screws,  then  pull the 
cover back. 
2. Remove the  air cleaner filter. 
3. Be  sure  to install  the air cleaner filter  and replace the 
cover tightly. 
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        Page 227 of 340

Automatic  Transaxle Fluid 
When to Check  and  Change 
A good time to check  your automatic  transaxle  fluid 
level 
is when  the  engine  oil  is changed.  Refer  to the 
Maintenance  Schedule  to  determine  when to  change 
your  fluid.  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  Oldsmobile  retailer 
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 
transaxle. 
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 
transaxle  fluid. 
Wait at least 30 minutes before  checking the transaxle 
fluid level  if you  have been  driving: 
0 When outside  temperatures  are  above 90 OF (32 O C). 
At high speed for quite a while. 
0 In heavy traffic -- especially in hot weather. 
While pulling a trailer. 
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        Page 228 of 340

To get the right reading,  the  fluid  should be  at normal 
operating temperature, which  is  180°F to 
200°F (82°C 
Get the vehicle warmed  up by  driving  about  15 miles 
(24 km) when outside  temperatures  are  above  50°F 
(10°C).  If it's  colder  than 
50°F (1O"C),  you  may have 
to  drive  longer. 
to 
93°C). 
To check the fluid  level 
1. 
2. 
3. 
4. 
Park 
your vehicle  on a level place. Keep the  engine 
running. 
With  the parking  brake  applied,  place  the shift  lever 
in  PARK 
(P). 
With your  foot on the  brake pedal, move the  shift 
lever  through  each  gear  range, pausing  for about 
three  seconds  in each range.  Then, position 
the shift 
lever  in PARK 
(P). 
Let  the  engine  run  at idle  for  three  to  five  minutes. Then, 
without shutting 
off the  engine,  follow  these steps: 
The  automatic transaxle dipstick handle  is red. Pull  out 
the dipstick and wipe it  with 
a clean rag or paper towel. 
1.  Push it back  in  all the way,  wait three  seconds  and 
then pull it back out again. 
2. Check both sides of the dipstick,  and read the lower 
level. 
The fluid  level must be in the cross-hatched 
area. 
3. If  the fluid level  is in the acceptable range, push  the 
dipstick  back 
in all the  way.  
     
        
        Page 229 of 340

How to Add Fluid 
Refer  to the Maintenance  Schedule  to  determine  what 
kind  of transaxle  fluid 
to use. See “Recommended 
Fluids  and Lubricants”  in the  Index. 
If  the  fluid  level 
is low, add only  enough of the  proper 
fluid  to bring  the  level  into  the  cross-hatched  area  on 
the  dipstick. 
1.  Pull  out  the  dipstick. 
2. Using  a  long-neck  funnel,  add enough  fluid  at the 
dipstick  hole  to bring  it 
to the proper  1evel.It  doesn’t 
take  much  fluid,  generally less than  a pint 
(0.5L). 
Don’t overfill. We  recommend  you use only fluid 
labeled  DEXRON@-111,  because  fluid with that  label 
is  made  especially  for  your  automatic  transaxle. 
Damage  caused  by fluid  other  than DEXRON@-I11 
is  not  covered  by your  new vehicle  warranty. 
After  adding  fluid,  recheck  the fluid  level  as 
described  under “How  to  Check.” 
When  the correct  fluid  level  is  obtained,  push  the 
dipstick  back  in all the  way. 
Manual  Transaxle  Fluid 
When to Check 
A good time to have it checked is when the  engine oil is 
changed.  However, the fluid in  your manual  transaxle 
doesn’t  require  changing. 
How to Check 
Because  this operation  can be a  little  difficult,  you  may 
choose  to  have this  done  at your Oldsmobile  retailer 
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 
transaxle. 
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 
transaxle  fluid. 
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        Page 230 of 340

Check the fluid level only when your  engine  is off, the 
vehicle 
is parked  on a level place  and the transaxle is 
cool enough  for you  to rest  your  fingers  on the transaxle 
case. 
Then, follow these  steps: 
1. Flip the handle  up and then pull out the dipstick  and 
clean 
it with  a rag  or paper towel. 
2. Push it back in all the  way  and remove it. 
3. Check both  sides of the dipstick  and read  the lower 
level.  The fluid level must  be between  the  ADD  and 
FULL marks. (Note: Fluid may appear at the bottom 
of the dipstick even  when the fluid level is several 
pints  low.) 
4. If the fluid  level is where it  should be, push  the 
dipstick back  in all the  way and flip the handle 
down. 
If the fluid  level is low, add more fluid as 
described 
in the  next  steps. 
How to Add Fluid 
Here’s  how to add fluid. Refer  to the Maintenance 
Schedule 
to determine  what kind of fluid to use.  See 
“Recommended Fluids  and Lubricants’’ 
in the Index. 
1. Remove the dipstick  by flipping  the handle  up and 
then pulling the dipstick out. 
2. Add  fluid at the dipstick  hole. 
Add  only enough fluid 
to bring the fluid level up to 
the  FULL  mark 
on the dipstick. 
3. Push the dipstick back  in all the way; then  flip the 
handle down to lock the  dipstick 
in place.  
     
        
        Page 231 of 340

Hydraulic  Clutch 
The hydraulic  clutch  linkage  in your  vehicle  is 
self-adjusting.  The clutch  master  cylinder  reservoir 
is 
filled  with  hydraulic  clutch  fluid. 
It isn’t  a  good  idea to “top  off’ your  clutch  fluid.  Adding 
fluid  won’t  correct 
a leak. 
A  fluid  loss  in  this  system  could  indicate a problem. 
Have  the  system  inspected and  repaired. 
When to Check  and  What to Use 
Refer to the Maintenance 
Schedule  to determine  how 
often  you should  check the 
fluid  level  in  your clutch 
master  cylinder  reservoir 
and  for the  proper  fluid.  See 
“Owner  Checks  and 
Services”  and 
“Recommended  Fluids  and 
Lubricants”  in the  Index. 
How to Check 
If  you can see fluid  in  the reservoir, the level is 
acceptable. 
Engine Coolant 
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. 
The  proper  coolant  for  your  Oldsmobile will: 
0 Give  freezing protection  down to -34°F (-37°C). 
Give  boiling protection up to 262°F ( 128 O C). 
0 Protect  against  rust and  corrosion. 
0 Help  keep  the  proper  engine  temperature. 
0 Let  the  warning lights work as they should. 
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        Page 232 of 340
What to Use 
Use a mixture  of one-half clearz water (preferably 
distilled) and one-half  antifreeze  that meets 
“GM 
Specification 182SM,” which  won’t damage  aluminum 
parts.  You can also  use a recycled coolant  conforming  to 
GM Specification 1825M with a complete coolant flush 
and refill. Use 
GM Engine  Coolant Supplement  (sealer) 
with  any complete coolant flush and refill. 
If you use 
this mixture,  you don’t  need to add anything  else. 
I 
I NOTICE: 
If you use an improper coolant mix, your engine 
could overheat  and be badly  damaged. The 
repair cast  wouldn’t  be  covered by your 
warranty. 
Too much  water  in the mix can freeze 
and  crack  the engine,  radiator, heater core and 
other parts. 
6-22