Chevrolet 2001 Express Van Owner's Manual page 350

Short Trip/City Scheduled Maintenance
12,000 Miles (20 000 km)
j
Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
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Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)
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Check axle fluid level and add fluid as needed. (See footnote **.)
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Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote +.)
15,000 Miles (25 000 km)
j
Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
j
Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)
j
Diesel Engine Only: Inspect engine air cleaner filter if you are driving in dusty
conditions. Replace filter if necessary.
An Emission Control Service. (See footnote
Gasoline Engine Only: See "Engine Air Cleaner Filter Restriction Indicator
Check" in the Index.
j
Check axle fluid level and add fluid as needed. (See footnote **.)
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(Continued)
DATE
ACTUAL
SERVICED BY:
MILEAGE
DATE
ACTUAL
SERVICED BY:
MILEAGE
7-11