Cadillac STS-V
Maintenance specs for 1 variant of the Cadillac STS-V — from 2006 to 2009.
2006–2009 Cadillac STS-V
4.4L Supercharged V8 Northstar (LC3) · RWD
469 hp / 439 lb-ft
Transmission
Type6-Speed Automatic (6L50)
FluidDexron VI
Drain & fill5.5 qt
Full capacity10 qt
Power Steering
TypeHydraulic
FluidGM Power Steering Fluid
Differentials
Rear fluid75W-90 Synthetic GL-5
Fuel
Tank17.5 gal
TypePremium 93
Tires
Size255/45R18 front / 285/40R18 rear
Pressure (front)33 PSI
Pressure (rear)33 PSI
Shop 255/45R18 front / 285/40R18 rear tiresService Intervals
Oil change5,000 mi
Trans service50,000 mi
Coolant flush150,000 mi
Spark plugs100,000 mi
Timingchain (no scheduled replacement)
Air filter30,000 mi
Cabin filter22,500 mi
Drive belt60,000 mi