BUICK REGAL 1998 Owners Manual
Manufacturer: BUICK, Model Year: 1998, Model line: REGAL, Model: BUICK REGAL 1998Pages: 388, PDF Size: 20.19 MB
Page 281 of 388

then  start  the  vehicle. If the CHANGE OIL  SOON light 
comes back on, the system has not  reset. Repeat the 
procedure. 
(If you have a  driver  information  center, the 
system  may be reset  by depressing  the DIC 
RESET 
button for  five  seconds while viewing  the oil life  display 
on the DIC.  See “Driver  Information  Center”  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 dealer, a  service station or a local  recycling 
center  for  help. 
Air Cleaner 
To check  or  replace  the air 
filter, loosen  the wing nut 
on  the  air  duct  and lift 
up on 
the two clips  located  on the 
top  of the  filter  cover. 
Disconnect the  duct and 
reposition 
it while removing 
the  side  cover. 
Pull  out  the filter.  Be  sure 
to install the air  filter and 
install  the cover tightly when  you are finished. 
Refer 
to the Maintenance  Schedule to  determine when to 
replace  the  air  filter. 
See  “Scheduled Maintenance  Services’’  in the Index. 
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Operating the  engine  with  the air cleaner off can 
cause  you or others to  be burned.  The air cleaner 
not  only  cleans  the air, 
it stops  flame  if the  engine 
backfires. 
If it  isn’t  there,  and the engine 
backfires,  you  could  be  burned.  Don’t  drive with 
it 
off, and  be careful  working  on  the engine  with 
the 
air cleaner off. 
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. 
Passenger  Compartment Air Filter 
The  passenger compartment 
air  filter  is  located 
underneath your hood  just 
below the windshield wiper 
arm on the car’s passenger 
side  (Underneath  the air 
inlet grille). 
The  filter  traps 
most of the pollen from the air entering 
the  air  conditioning  module. Like your engine’s  air 
filter,  it may  need  to  be changed periodically. For 
information on  how often 
to change the passenger 
compartment  air filter,  see “Maintenance Schedule” in 
the Index. 
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To change  the passenger  compartment  air  filter,  use the 
following  steps: 
1.  Turn  off the  ignition when the  windshield wipers 
are  in  the  up position. 
2. Raise  the hood. 
3. Remove  (disconnect)  the windshield  washer pump 
hose  from  the fender  rail and  air  inlet  grille. 
4. Reposition  the  hood weatherstrip  from the right 
side 
of the  vehicle  (peel  back halfway  to  center). 
5. Remove (disconnect)  the  air  inlet  grille  retainers. 
6. Remove (disconnect)  the air  inlet  grille. 
7. Remove  (disconnect)  the  passenger  compartment 
8. Then install  the new  air filter.  For  the  type of filter 
to  use,  see  “Normal Maintenance  Replacement 
Parts” in the  Index. 
air 
filter. 
9. Reposition  the  air  inlet  grille. 
10. Replace  the  air  inlet  grille  retainers.  11. 
Reposition  the hood weatherstrip. 
12. Reconnect the windshield washer pump hose to the 
fender  rail and  air  inlet  grille. 
13.  Close  the  hood. 
14. Return the windshield wipers  to the park  position. 
Supercharger Oil 
Unless you  are technically qualified and have the proper 
tools, 
you should let your  dealer  or  a qualified  service 
center  perform this  maintenance. 
When  to  Check 
Check oil level  every  30,000 miles (50 000 km) or every 
36 months, whichever  occurs first. 
What Kind of Oil to Use 
See  “Recommended  Fluids and Lubricants”  in the Index 
and  use only  the recommended  oil. 
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How to Check  and Add Oil 
Check  oil only when  the  engine  is  cold.  Allow the 
engine 
to cool two  to three hours after running. 
~  ~ - 
A CAUTION: 
If you  remove  the  supercharger  oil  fill plug  while 
the  engine  is  hot,  pressure  may  cause  hot  oil  to 
blow  out 
of the  oil  fill hole.  You  may  be  burned. 
Do 
not remove  the  plug  until  the  engine cools. 
1. 
2. 
3. 
4. 
Clean  the area around  the  oil fill plug before 
removing  it. 
Remove the oil fill  plug using  a 
3/ 16 inch 
Allen wrench. 
The  oil level is correct when it  just reaches the 
bottom  of the threads  of the  inspection  hole. 
Replace the oil plug with the O-ring 
in place. Torque 
to 
88 lb-in  (10 N-m). 
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. 
Change both the fluid and filter  every 
50,000 miles 
(83 000 km) if the vehicle is mainly driven under  one  or 
more  of these conditions: 
In heavy city traffic where the  outside temperature 
regularly  reaches 
90°F (32” C) or higher. 
0 In hilly or mountainous terrain. 
0 When  doing frequent trailer towing. 
0 Uses such as found  in taxi, police  or delivery service. 
If  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. 
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How to Check 
Because this  operation  can be a  little  difficult,  you  may 
choose 
to have this  done at your Buick  dealership 
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°F  (32°C). 
0 At high  speed  for  quite  a  while. 
0 In heavy traffic -- especially  in hot weather. 
0 While  pulling  a trailer. 
To get  the right reading,  the  fluid should be  at normal 
operating  temperature,  which is 
180°F to 200°F  (82°C 
to  93°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 (IOOC), you  may  have 
to  drive  longer. 
Checking  the  Fluid  Level 
0 
0 
0 
0 
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. 
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The automatic transaxle fluid dipstick  is the red loop 
located toward the rear 
of the engine. 
1. Pull  out the dipstick and wipe  it with  a clean rag  or 
paper towel. 
2. Push  it back in all the  way,  wait three seconds and 
then pull  it back out again. 
3. Check both sides of the dipstick, and read the 
lower level.  The fluid level must  be in the 
cross-hatched area. 
4. If the fluid level  is  in the acceptable range, push the 
dipstick back  in 
all the way. 
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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  level. 
It  doesn’t  take much  fluid, generally  less than  one 
pint 
(0.5 L). Don’t overfill. 
NOTICE: 
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. 
3. After  adding  fluid, recheck  the  fluid  level  as 
described  under  “How  to Check.”  4. 
When  the correct  fluid  level is  obtained,  push the 
dipstick  back in all the  way. 
Engine Coolant 
The  cooling s stem in your vehicle is filled  with 
DEX-COOL  engine  coolant.  This  coolant  is designed 
to remain  in your  vehicle  for 5 years or 150,000 miles 
(240 
000 km)  whichever  occurs  first, if you  add only 
DEX-COOL6  extended  life  coolant. 
J 
The  following  explains your cooling  system and  how to 
add  coolant  when it is low.  If 
you have a problem  with 
engine  overheating  or  if you  need 
to add coolant  to your 
radiator,  see “Engine Overheating” 
in the  Index. 
A 50/50 mixture  of water and DEX-COOL@ 
coolant will: 
Give  freezing  protection down  to -34°F (-37°C). 
Give boiling protection  up to 265 “F (1 29°C). 
Protect  against rust and corrosion. 
0 Help keep the proper  engine temperature. 
0 Let the  warning  lights  and  gages  work as they  should. 
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NOTICE: 
When  adding  coolant,  it is important  that  you use 
only 
DEX-COOL@ (silicate-free)  coolant. 
If  coolant  other  than  DEX-COOL  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.  Damage  caused  by the  use 
of  coolant  other  than  DEX-COOL@  is  not 
covered  by your  new  vehicle  warranty. 
What to Use 
Use a mixture  of one-half clean water (preferably 
distilled) and one-half 
DEX-COOL@ coolant which 
won’t damage aluminum parts. 
If you use  this mixture, 
you  don’t need to  add anything 
E :. 
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  mixture  will. Your  vehicle’s  coolant 
warning  system  is  set  for  the  proper  coolant 
mixture.  With  plain  water  or  the  wrong  mixture, 
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 mixture  of clean  water  and 
DEX-COOL@ coolant. 
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NOTICE: 
If you use  an  improper  coolant  mixture,  your 
engine  could  overheat  and  be  badly  damaged. 
The  repair  cost  wouldn’t  be  covered  by your 
warranty. 
Too much  water  in  the  mixture  can 
freeze  and  crack  the  engine,  radiator,  heater  core 
and  other  parts. 
If  you  have to add  coolant more than  four times 
a year, 
have your  dealer check your  cooling  system. 
NOTICE: 
If  you  use the  proper  coolant,  you don’t  have  to 
add  extra  inhibitors  or  additives  which  claim  to 
improve  the  system.  These  can  be  harmful. 
Checking  Coolant 
- 
When  your engine is cold,  the coolant level should  be at 
the 
COLD mark  or a little higher. When your  engine  is 
warm, the level should be up to  the 
HOT mark or a 
little higher. 
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If this  light comes on,  it 
means you’re low 
on 
engine  coolant. 
LOW COOLANTI 
- 
Adding  Coolant 
If you need more  coolant,  add  the proper DEX-COOL@ 
coolant mixture ut the coolant recovery tank, but be 
careful  not to spill  it. 
If the  coolant  recovery tank is completely empty, add 
coolant 
to the radiator.  (See “Engine Overheating”  in 
the  Index.) 
nrning  the radiator  pressure  cap when  the 
engine  and radiator  are hot  can  allow  steam  and 
scalding  liquids  to  blow  out and  burn  you  badly. 
With  the coolant  recovery  tank, you  will  almost 
never  have  to add  coolant  at the  radiator. 
Never  turn the radiator  pressure  cap 
-- even  a 
little 
-- when  the  engine  and  radiator  are  hot. 
b, CAUTIOI.. I 
You can  be burned  if  you spill  coolant  on  hot 
engine  parts.  Coolant  contains  ethylene  glycol, 
and  it  will burn 
if the  engine  parts  are hot 
enough.  Don’t  spill  coolant  on  a  hot  engine. 
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