Chevrolet 1998 Express Van Owner's Manual page 326

I
Short TripKity Maintenance Schedule
--
Gasoline Engines
1
0
Check axle fluid level and add fluid as needed. (See footnote
**.)
Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote
+.)
45,000 Miles (75 000 km)
0
Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
0
Lubricate chassis components (or every 3 months, whichever occurs first).
0
Check axle fluid level and add fluid as needed. (See footnote
**.)
0
Clean and repack the front wheel bearings (or at each brake relining,
0
Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
(See footnote
#.)
whichever occurs first).
if necessary.
An Emission Control Service. (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 Service. Applicable only to vehicles sold in the
United States.
DATE
I
7-15