Oldsmobile 2002 Aurora - Manual (Page 279)

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To check or replace the air filter, do the following:
1. With the hood open, unlatch and remove the
access panel.
2. To remove the filter, press on the spring tab on
the side of the filter housing and pull the filter out
of the housing.
3. To install the new filter, press on the spring tab and
insert the filter into the housing. The filter should be
fully inserted into the upper and lower grooves and
locked into place by the spring tab.
4. Reinstall the air filter access panel at the base of
the windshield.
Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil is changed.
Change both the fluid and filter every 50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of these conditions:
D In heavy city traffic where the outside temperature
regularly reaches 90
_F (32_C) or higher.
D In hilly or mountainous terrain.
D When doing frequent trailer towing.
D 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
at 100,000 miles (166 000 km).
See “Scheduled Maintenance Services” in the Index.