Chevrolet 1998 Express Van Owner's Manual page 332

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Short Trip/City Maintenance Schedule
--
Gasoline Engines
I
0
Check axle fluid level and add fluid as needed. (See footnote
**.)
CI
Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote
+.)
75,000 Miles (125 000 km)
0
Change engine oil and filter (or every 3 months, whichever occurs first).
0
Lubricate chassis components (or every 3 months, whichever occurs first).
An Emission Control Sewice.
(See footnote #.)
0
Clean and repack the front wheel bearings (or at each brake relining,
whichever occurs first).
0
Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
if necessary.
An Emission Control Sewice. (See footnote"f)
0
Check axle fluid level and add fluid as needed. (See footnote
**.)
0
Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
insulation for damage or looseness. Adjust or replace as required. This is a
Noise Emission Control Sewice. Applicable only to vehicles sold in the
United States.
I
DATE
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7-21