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:
Not quite midsize
Like most mid-size entry-level luxury cars, the CTS has a fairly restrictive
cabin. Although I can live with that, the hard front and very tight rear seats
put a damper on the experience. Sure, it ...
Back-Up Lamps
To replace this bulb:
1. Open the liftgate. See Liftgate for more information.
2. Remove the two screws from the taillamp assembly.
3. Pull the taillamp assembly rearward until the ...
Remote Keyless Entry (RKE) System
See Radio Frequency Statement for information regarding Part 15
of the Federal Communications Commission (FCC) rules and Industry Canada Standards
RSS-GEN/210/220/310. If there is a de ...