2009 Cadillac STS Oil Filter
Find the OEM oil filter part number for the 2009 Cadillac STS by engine/trim.
Specifications are shared across the 2005–2011 Cadillac STS. Full details: 2005 Cadillac STS.
OEM oil filter results
| Engine / Trim | OEM Part Number | Oil Weight | Buy |
|---|---|---|---|
| 4.6L V8 (Northstar) | ACDelco PF61E | 5W-30 | Buy on Amazon |
| 3.6L V6 (High Feature) | ACDelco PF2129 | 5W-30 | Buy on Amazon |
Tip: If your vehicle has multiple engines, match the engine size on your door jamb sticker or owner's manual. Always verify with your owner's manual before purchase.
Service specifications
4.6L V8 (Northstar)
- Filter type
- Spin-on
- Change interval (normal)
- Per GM Oil Life Monitor (max 12 mo)
- Change interval (severe)
- Per Oil Life Monitor — expect shorter intervals under severe service
3.6L V6 (High Feature)
- Filter type
- Cartridge
- Change interval (normal)
- Per GM Oil Life Monitor (max 12 mo)
- Change interval (severe)
- Per Oil Life Monitor — expect shorter intervals under severe service
Also fits
Vehicles that also use ACDelco PF61E:
- Cadillac DTS 2006–2011
- Cadillac SRX 2005–2009
- Buick Lucerne 2006–2008
- Buick Lucerne 2009–2011
- Buick Rainier 2005–2007
- Chevrolet Colorado 2005–2006
- Chevrolet Colorado 2007–2012
- Chevrolet Trailblazer 2005–2009
- GMC Canyon 2005–2012
- GMC Envoy 2005–2009
Vehicles that also use ACDelco PF2129:
- Cadillac ATS 2013–2016
- Cadillac CTS 2005–2007
- Cadillac CTS 2008–2009
- Cadillac CTS 2010–2013
- Cadillac SRX 2005–2009
- Chevrolet Camaro 2010–2015
- Chevrolet Colorado 2015–2016
- GMC Canyon 2015–2016
- Pontiac G8 2008–2009
These vehicles take the same OEM filter part number. Always confirm against your own owner's manual before buying.
Frequently asked questions
What oil filter does a 2009 Cadillac STS take?
It depends on the engine: the 4.6L V8 (Northstar) uses ACDelco PF61E; the 3.6L V6 (High Feature) uses ACDelco PF2129. Match the engine on your door-jamb sticker or owner's manual.
What oil weight does a 2009 Cadillac STS use?
Recommended viscosity — 4.6L V8 (Northstar): 5W-30; 3.6L V6 (High Feature): 5W-30.
How often should the oil be changed on a 2009 Cadillac STS?
4.6L V8 (Northstar) — normal service: Per GM Oil Life Monitor (max 12 mo); severe service: Per Oil Life Monitor — expect shorter intervals under severe service; 3.6L V6 (High Feature) — normal service: Per GM Oil Life Monitor (max 12 mo); severe service: Per Oil Life Monitor — expect shorter intervals under severe service. Severe service means short trips, towing, dusty roads or extended idling.
Is the 2009 Cadillac STS oil filter a cartridge or a spin-on?
4.6L V8 (Northstar): Spin-on; 3.6L V6 (High Feature): Cartridge.
Disclaimer: Amazon links are affiliate links. Verify fitment with your owner's manual.