2003 BUICK CENTURY Owner's Manual

Page 217 of 344

BUICK CENTURY 2003  Owners Manual How to Reset the CHANGE OIL SOON
Light
The GM Oil Life System calculates when to change
your engine oil and ®lter based on vehicle use. Anytime
your oil is changed, reset the system so it can
calcula

Page 218 of 344

BUICK CENTURY 2003  Owners Manual Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 5-12for
location of engine air cleaner/®lter.
When to Inspect
Inspect the air cleaner/®lter every 15,000 miles
(25,000 km) and replac

Page 219 of 344

BUICK CENTURY 2003  Owners Manual {CAUTION:
Operating the engine with the air cleaner/®lter
off can cause you or others to be burned. The
air cleaner not only cleans the air, it helps to
stop ¯ame if the engine back®res. If it isn

Page 220 of 344

BUICK CENTURY 2003  Owners Manual How to Check
Because this operation can be a little difficult, you may
choose to have this done at the dealership service
department.
If you do it yourself, be sure to follow all the instructions
here

Page 221 of 344

BUICK CENTURY 2003  Owners Manual Checking the Fluid Level
Prepare your vehicle as follows:
·Park your vehicle on a level place. Keep the engine
running.
·With the parking brake applied, place the shift lever
in PARK (P).
·With you

Page 222 of 344

BUICK CENTURY 2003  Owners Manual 3. Check both sides of the dipstick, and read
the lower level. The ¯uid level must be in the
cross-hatched area.
4. If the ¯uid level is in the acceptable range, push the
dipstick back in all the wa

Page 223 of 344

BUICK CENTURY 2003  Owners Manual Engine Coolant
The cooling system in your vehicle is ®lled with
DEX-COOLžengine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occur

Page 224 of 344

BUICK CENTURY 2003  Owners Manual What to Use
Use a mixture of one-halfclean, drinkable waterand
one-half DEX-COOLžcoolant which wont damage
aluminum parts. If you use this coolant mixture,
you dont need to add anything else.
{CAUT