Saturn 2004 Ion Owner's Manual page 341

Additional Required Services (cont'd)
25,000 50,000 75,000 100,000 125,000 150,000
Service and Miles (Kilometers) (41 500) (83 000) (125 000) (166 000) (207 500) (240 000)
Replace spark plugs. An Emission
Control Service.
Replace engine fuel filter. An Emission
Control Service. See footnote †.
Engine cooling system service (or
every 5 years, whichever occurs first).
An Emission Control Service. See
footnote (i).
Inspect engine accessory drive belt.
An Emission Control Service.
Red Line only: Replace engine
accessory drive belt. An Emission
Control Service.
6-7