Chevrolet 2003 Cavalier Owner's Manual page 320

100,000 Miles (166 000 km)
0 Replace spark plugs. An Emission Control Service.
0
Change automatic transaxle 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°C) or
higher.
-
In hilly or mountainous terrain.
-
When doing frequent trailer towing.
-
Uses such as found in taxi, police or delivery
service.
If you do not use your vehicIe under any
of
these
conditions, the fluid and filter do not require changing.
150,000 Miles
(240 000 km)
t l Drain, flush and refill cooling system (or every
60 months since last service, whichever occurs first).
See Engine Coolant on page 5-22 for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap. An Emission Control Service.
P Inspect engine accessory drive belt. An Emission
Control Service.
Manual transaxle fluid doesn't require change.
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