Buick 2003 Regal Owner's Manual page 307

7,500 Miles (12 500 km)
0 Rotate tires. See Tire Inspection and Rotation on
page 5-60 for proper rotation pattern and additional
information. (See footnote @.) (See footnote
+.)
15,000 Miles (25 000 km)
0 Inspect engine air cleaner filter if you are driving in
dusty conditions. Replace filter if necessary. An
Emission Control Service. (See footnote f.)
0
Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
U Rotate tires. See Tire Inspection and Rotation on
page 5-60 for proper rotation pattern and additional
information. (See footnote @.) (See footnote +.)
22,500 Miles (37 500 km)
U Rotate tires. See Tire Inspection and Rotation on
page 5-60 for proper rotation pattern and additional
information. (See footnote @.) (See footnote +.)
30,000 Miles (50 000 km)
0 Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
c1 Rotate tires. See Tire Inspection and Rotation on
page 5-60 for proper rotation pattern and additional
information. (See footnote @.) (See footnote +.)
0 Replace engine air cleaner filter. An Emission
U For supercharged engines only: Check the
supercharger oil level and add the proper
supercharger oil as needed (or every 36 months,
whichever occurs first). See Part D: Recommended
Fluids and Lubricants on page 6-15. An Emission
Control Service. (See footnote f.)
Control Service.
37,500 Miles (62
500
km)
U Rotate tires. See Tire Inspection and Rotation on
page 5-60 for proper rotation pattern and additional
information. (See footnote @.) (See footnote +.)
45,000
Miles (75 000 km)
0
CI
Inspect engine air cleaner filter if you are driving in
dusty conditions. Replace filter if necessary. An
Emission Control Service. (See footnote f.)
Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
Rotate tires. See Tire Inspection and Rotation on
page 5-60 for proper rotation pattern and additional
information. (See footnote @.) (See footnote
+.)
6-6