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:
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 ...
TPMS Malfunction Light and Message
The TPMS will not function properly if one or more of the TPMS sensors are
missing or inoperable. When the system detects a malfunction, the low tire
pressure warning light flashes for about one min ...
Overview
A longtime symbol of Cadillac luxury, the DeVille takes on new life as the
DTS for 2006. From its Cadillac-signature exterior styling and luxurious
interior to its powerful, refined ride character ...