Page 242 of 376

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   
     
        
        Page 244 of 376

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 
-   
     
        
        Page 294 of 376
Downloaded from www.Manualslib.com manuals search engine Cooling  System  Capacity 
ENGINE  VIN 
“VORTEC” 4300 W 
“VORTEC” 5000 M 
“VORTEC” 5700 R 
“VORTEC”  7400 
J 
QTY Without  Rear  Heater* 
11 quarts ( 10.4 L) 
17  quarts ( 16 L) 
17 quarts ( 16 L) 
23 quarts (2 1.8 L) 
QTY With  Rear  Heater* 
14  quarts  (13.2 L) 
20 quarts  (18.9 L) 
20 quarts ( 18.9 L) 
26 quarts (24.6 L) 
After  refill,  the level MUST be checked  as  outlined  under “Engine  Cooling  System”  in Section 5. 
*All  quantities  are  approximate. 
Crankcase  Capacity 
ENGINE 
“VORTEC”  4300 
“VORTEC” 
5000 
“VORTEC” 5700 
“VORTEC”  7400 
VIN 
W 
M 
R 
J 
Quantity  With  Filter 
4.5  quarts (4.3 L) 
5 quarts  (4.8 L) 
5 quarts  (4.8 L) 
7 quarts (6.5 L) 
All  quantities  are  approximate. 
After refill,  the level 
MUST be checked  as outlined  under “Engine  Oil And Filter Recommendations” in Section 5. 
*Add an additional  quart (1 L) for RPO 521 and RPO KL5 Models.   
     
        
        Page 295 of 376
Downloaded from www.Manualslib.com manuals search engine Fuel Tank  Capacity 
TYPE 
Standard  Tank 
Cutaway  Standard  Tank 
Cutaway  Optional  Tank 
All quantities  are  approximate. 
QUANTITY 
3 1 gallons (1 17.3 L) 
35 gallons  (132 L) 
55 gallons (208.2 L) 
Normal  Replacement  Parts 
Engine  “VORTEC”  4300 
VIN w 
Oil Filter  PF52 
Air Cleaner  Filter*  A9 17C 
PCV  Valve  CV789C 
Spark 
Plugs 4  1-932 
Fuel  Filter  GF48 
1 
Radiator  Cap  RC36  VORTEC” 
5000 
M 
PF1218 
A9 17C 
cv774c 
4  1-932 
GF48 
1 
RC36 
*For  severe  dusty conditions,  use 
AC Air Filter,  Part No. 1236C.  “VORTEC” 
5700 
R 
PF1218 
A9  17C 
cv774c 
4 1-932 
GF48 
1 
RC36  “VORTEC”  7400 
J 
PF1218 
A917C 
cv774c 
4  1-932 
GF48 
1 
RC36 
6-67   
     
        
        Page 304 of 376

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).   
     
        
        Page 306 of 376

Downloaded from www.Manualslib.com manuals search engine Maintenance  Schedule 
- 
I Long  TripMighway  Intervals -- Gasoline En 1,ong ‘lrip/Highn.ay  Intervals -- Gasoline  Engines 
Every 
7,500 Miles (12 500  km): Engine Oil  and Filter 
Change  (or  every 
12 months,  whichever  occurs  first). 
Chassis Lubrication  (or every 
12 months, whichever 
occurs  first). Drive  Axle  Service. 
At 7,500 Miles (12 500 km) -- Then  Every 
15,000  Miles  (25 
000 km): Tire Rotation. 
Every 15,000 Miles  (25 000 km): Shields  and 
Underhood Insulation Inspection  (GVWR  above 
8,500 lbs. only). Thermostatically  Controlled Engine 
Cooling  Fan Check  (or  every 
12 months, whichever 
occurs  first). 
Every 30,000 Miles (50 000 km): Fuel Filter 
Replacement. Air  Cleaner Filter Replacement. 
Front Wheel Bearing Repack  (or at each  brake 
relining, whichever  occurs first). 
Every 50,000 Miles (83 000 km): Automatic 
Transmission  Service  (vehicles  over 
8600 GVWR or 
driven under severe conditions  only). 
Every 60,000 Miles (100 000 km): Engine Accessory 
Drive Belt Inspection. Fuel Tank,  Cap and Lines 
Inspection. Exhaust  Gas Recirculation  System 
Inspection. Evaporative  Control System Inspection. 
Every 100,000 Miles (166 000 km): Cooling  System 
Service  (or  every 
60 months,  whichever  occurs first). 
Spark  Plug  Wire  Inspection.  Spark  Plug  Replacement. 
Positive  Crankcase  Ventilation 
(PCV) Valve  Inspection. 
These  intervals  only  summarize  maintenance services. 
Be sure to follow the  complete  maintenance  schedule on 
the following  pages.   
     
        
        Page 308 of 376
Downloaded from www.Manualslib.com manuals search engine I Short TripKity  Maintenance  Schedule -- Gasoline  Engines I 
3,000 Miles (5 000 km) 
0 Change engine oil  and filter (or every 
3 months, whichever occurs first). 
0 Lubricate chassis components; see 
An Emission Control Service. 
footnote ## (or every 3 months, whichever 
occurs first). 
as  needed. 
** 
0 Check axle fluid level  and  add fluid 
DATE 
SERVICED BY ACTUAL MILEAGE 
6,000 Miles (10 000 km) 
0 Change engine oil and filter (or every 
3 months, whichever occurs first). 
An Emission Control Service. 
0 Lubricate  chassis  components;  see  footnote # 
(or every 3 months,  whichever  occurs  first). 
0 Check axle fluid level  and  add fluid 
as  needed. 
** 
0 Rotate  tires.  See  “Tire  Inspection  and  Rotation’’ 
in the  Index  for  proper  rotation 
pattern  and  additional  information.  During 
tire  rotation,  check  brake  calipers  for 
freedom  of  movement.  Refer  to  the 
appropriate 
GM service  manual  for  proper 
caliper  service  procedures. 
7-8   
     
        
        Page 309 of 376
Downloaded from www.Manualslib.com manuals search engine Short  TkipKity  Maintenance  Schedule -- Gasoline  Engines 
9,000 Miles (15 000 km) 
0 Change engine oil and filter (or every 
3 months, whichever occurs first). 
0 Lubricate chassis components; see 
An Emission  Control  Service. 
footnote # (or every 3 months, whichever 
occurs  first). 
as needed. 
** 
0 Check axle fluid level and  add fluid 
DATE  SERVICED BY: ACTUAL MILEAGE 
12,000 Miles (20 000 km) 
0 Change engine oil  and filter (or every 
3 months, whichever occurs first). 
An  Emission  Control  Service. 
0 Lubricate chassis components; see 
footnote 
# (or  every 3 months, whichever 
occurs  first). 
as  needed. 
** 
0 Check axle fluid level  and add fluid 
I I I 
DATE  ACTUAL MILEAGE  SERVICED BY 
7-9