GMC 2000 Safari Owner's Manual page 351

Short Trip/City Scheduled Maintenance
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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 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 vehicle under any of these conditions, change the fluid
and filter every 50,000 miles (83 000 km).
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Replace fuel filter.
An Emission Control Service. (See footnote
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Replace engine air cleaner filter.
An Emission Control Service.
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Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote +.)
93,000 Miles (155 000 km)
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Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
[
.)
(Continued)
DATE
ACTUAL
SERVICED BY:
MILEAGE
7-27