Chevrolet 1997 Astro Owner's Manual page 357

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I
Long Trip/Highway Maintenance
Schedule
1
30,000 Miles
(50
000 km)
0
Change engine oil and filter (or every
12 months, whichever occurs first).
El
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 leaking.
(See footnote
**.)
0
For Two-Wheel-Drive vehicles only: Clean
and repack the front wheel bearings (or at
each brake relining, whichever occurs first).
An Emission Control Service.
0
Change automatic transmission fluid and
filter if the vehicle is mainly driven under
one or more of these conditions:
-
In heavy city traffic where the outside
temperature regularly reaches 90°F
(32
O
C) or higher.
-
In hilly or mountainous terrain.
-
When doing frequent trailer towing.
-
Uses such as found in taxi, police or
delivery service.
I f you do
not use your vehicle under any of these
conditions, change the fluid and filter every
30,000 miles (50 000 km).
(Continued)
n
m m

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