Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving.
If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.
See also:
Radio Menus
Radio menus are available for AM and FM.
Turn the MENU/SELECT knob to open the main radio menu for that frequency. ...
STS adds direct-injection V-6
For 2008, STS will be the first GM vehicle equipped with a new 3.6-liter
direct-injected V-6 engine. The new base powerplant, with 298 horsepower (222
kW), delivers 40 more horsepower; and torque ...
Windshield Wiper/Washer
The windshield wiper lever is on the
right side of the steering column.
Sedan and Coupe Model shown
Wagon Model shown
Move the windshield wiper lever to
select the wiper speed.
: Use for ...