Chevrolet 2005 Epica Owner's Manual page 304

97,500 Miles (162 500 km)
Change engine oil and filter (or every 12 months,
whichever occurs first). An Emission Control Service.
Rotate tires. See Tire Inspection and Rotation on
page 5-54 for proper rotation pattern and additional
information. (See footnote +.)
6-18
100,000 Miles (166 000 km)
Replace spark plugs. An Emission Control Service.
Change automatic transaxle fluid 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.
− Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, the fluid does not require changing.