1998 GMC SIERRA oil

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Page 368 of 452

GMC SIERRA 1998  Owners Manual Normal  Maintenance  Replacement  Parts 
Replacement part numbers listed in this section are based on the latest information available  at  the time of printing, 
and  are subject  to change.  If a pa

Page 369 of 452

GMC SIERRA 1998  Owners Manual Cooling  System  Capacity  (Approximate) 
After refill,  the level  must be rechecked.  See  “Cooling 
System”  in the Index. 
Engine 
“VORTEC”  4300 
“VORTEC”  5000 
“VORTEC”  5700

Page 372 of 452

GMC SIERRA 1998  Owners Manual LE 
IMPORTANT- 
KEEP ENGINE OIL 
AT THE PROPER 
,VEL AND CHANGE 
RECOMMENDED 
AS 
Have you purchased  the GM Protection Pl~rn? The Plan 
supplements your new  vehicle M:u-ranties. See  your 
Warranty

Page 375 of 452

GMC SIERRA 1998  Owners Manual Maintenance  Schedule 
Short  Trip/City  Definition -- Gasoline  Engines 
Follow the Short Trip/City Maintenance  Schedule if any 
one  of these  conditions  is true  for  your vehicle: 
Most trips ar

Page 376 of 452

GMC SIERRA 1998  Owners Manual Maintenance  Schedule 
I Short Trip/City  Intervals -- Gasoline  Engines I 
Every  100,000  Miles  (166 000 km): Spark Plug Wire 
Inspection. Spark 
Plug Replacement. Automatic 
Transmission  Service

Page 377 of 452

GMC SIERRA 1998  Owners Manual Maintenance  Schedule 
Long  TriplHighway  Intervals -- Gasoline  Engines 
Every 
7,500 Miles  (12 500 km): Engine  Oil and Filter 
Change  (or  every  12 months, whichever  occurs  first). 
Chassis

Page 379 of 452

GMC SIERRA 1998  Owners Manual 1 Short  Trip/City  Maintenance  Schedule -- Gasoline  Engines I 
4:::: Drive axle service  (see "Recommended  Fluids and 
Lubricants" 
in the  Index  for  proper  lubricant to use): 
0 Locking  Diffe

Page 380 of 452

GMC SIERRA 1998  Owners Manual I Short TripKity  Maintenance  Schedule -- Gasoline  Engines I 
3,000 Miles (5 000 km) 
Ci Change engine oil and filter (or every 3 months, whichever occurs  first). 
0 Lubricate chassis components (o