GMC SIERRA 1998 Manual page 389

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Short Trip/City Maintenance Schedule
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Gasoline Engines
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Lubricate chassis components (or every 3 monms, whichever occurs first).
0
Check readfront axle fluid level and add fluid as needed. Check constant
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote
**.)
60,000 Miles (100 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
Lubricate chassis components (or every 3 months, whichever occurs first).
0
Check readfront axle fluid level and add fluid as needed. Check constant
For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote
**.)
bearings (or at each brake relining, whichever occurs first).
insulation for damage or looseness. Adjust or replace as required.
This is a Noise Emission Control Service. Applicable only to vehicles
sold in the United States.
An Emission Control Service.
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Inspect engine accessory drive belt.
DATE
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MILEAGE
(Continued)