Chevrolet 1997 Astro Owner's Manual page 356

15,000 Miles (25 000 km) (Continued)
-
In
hilly or mountainous terrain.
-
When doing frequent trailer towing.
-
Uses such
as found in taxi, police or
If you do not use your vehicle under any o f these
conditions, change the fluid and filter every
30,000 miles (50 000 km).
0
Rotate tires. See "Tire Inspection and
Rotation" in the Index for proper rotation
pattern and additional information.
(See footnote
+.)
delivery service.
DATE ACTUAL MILEAGE SERVICED BY:
22,500 Miles (37 500 km)
0
Change engine oil and filter (or every
12 months, whichever occurs first).
0
Lubricate chassis components (or every
12 months, whichever occurs first).
(See footnote
#.)
0
Check readfront axle
fluid
level and add fluid
as
needed. Check constant velocity joints and
axle seals for lealung. (See footnote
*
*.)
0
Rotate tires. See "Tire Inspection and
Rotation" in the Index for proper rotation
pattern and additional information.
(See footnote
+.)
An Emission
Control Service.