oil type BUICK REGAL 2003 Owner's Manual

Radiator Pressure Cap
Notice:Your radiator cap is a pressure-type cap
and must be tightly installed to prevent coolant loss
and possible engine damage from overheating.
Be sure the arrows on the cap line up with the
overow tube on the radiatorller neck.
The radiator pressure cap is located near the front of
the engine compartment on the passenger’s side of the
vehicle.
SeeEngine Compartment Overview on page 5-10for
more information on location.
Engine Overheating
You willfind a coolant temperature gage and a hot
engine warning light on your instrument panel.
SeeEngine Coolant Temperature Gage on page 3-34
andEngine Coolant Temperature Warning Light on
page 3-34.
Overheated Engine Protection
Operating Mode
The overheated engine protection operating mode
allows your vehicle to be driven to a safe place in an
emergency situation. If an overheated engine condition
exists, this mode, which alternatesfiring groups of
cylinders, helps prevent engine damage. In this mode,
you will notice a significant loss in power and engine
performance. The temperature gage will indicate
an overheated engine condition exists. Driving extended
miles (km) and/or towing a trailer in the overheated
engine protection operating mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil and
reset the oil life system. See“Engine Oil”in the
Index.
5-25
2003 - Regal OM

Normal Maintenance Replacement Parts
Part Number
Engine Air Cleaner/FilterA1614C*
Engine Oil FilterType PF47*
Passenger Compartment Air Filter10406026
Spark Plugs
3800 V6Type 41–101*
Gap: 0.060 inches (1.52 mm)
3800 Supercharged V6Type 41–101*
Gap: 0.060 inches (1.52 mm)
Wiper Blade
Type
LengthShepherd’s Hook
22.0 inches (56.0 cm)
*ACDelco
®part number.
5-93
2003 - Regal OM