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:
Driving Impressions
Cadillac's Seville was known for years as a potent road car. The STS builds
solidly upon that reputation, adding a stylish exterior and ample technology.
Smooth-riding and well-controlled on good ...
OnStar®
If equipped, this vehicle has a
comprehensive, in-vehicle system
that can connect to a live Advisor
for Emergency, Security, Navigation,
Connection, and Diagnostic
Services. See OnStar Overv ...
Video Display Screens
The video display screens are located on the back of each head restraint.
Notice: Avoid directly touching the video screen, as damage can occur. See “Cleaning
the Video Screens” later in this sec ...