2009 Cadillac STS

United States Gasoline RWD SedanUpdated Aug 24, 2026

Specifications

Engine & Performance

Engine

Engine Specification

Rev. at Max Power: 6,400 rpm
Rev. at Max Torque: 3,900 rpm
Redline: 6,700 rpm

Engine Fluids

Synthetic Oil (viscosity): 5W-30
Engine Oil, Volume: 8.5 litres
Engine Coolant, Volume: 12.7 litres

Engine Configuration

Bore: 91 mm (3.6 in)
Stroke: 84 mm (3.3 in)
Compression Ratio: 9 :1
Engine Configuration: V-Engine
Supercharger: Yes
Synchronization: Timing Chain
Engine Placement: Front
Engine Mount: Longitudinally
Type of Combustion Engine: Piston
Fuel System: Electronic (Multi-Point) Fuel Injection
Camshaft Type: DOHC
Engine Block: Aluminium
Engine Heads: Aluminium
Engine Cooling: Liquid Cooling

Service Intervals

Air Filter: 80,000 km (49,710 mi)
Spark Plug: 160,000 km (99,419 mi)
Brake Fluid: 2 years
Oil Change & Engine Filter: 1 years
Engine Coolant: 240,000 km / 5 years
Transmission, Fluid: 160,000 km (99,419 mi)
Transmission, Fluid Filter: 160,000 km (99,419 mi)
Interior Filter: 40,000 km (24,855 mi)

Exterior

Chassis & Body

Chassis

Chassis: Sedan
Pillars: A-C
Chassis Construction: Unibody
Roof Material: Steel

Doors

Front Doors: Conventional
Rear Doors: Conventional
Door Handles: Pull-out

Platform

General Motors Platforms: Sigma Platform (Sigma I)

Interior