Checked oil specs by engine
2006 Cadillac DTS oil capacity, type & filter
The 2006 Cadillac DTS takes 7.5 qt of 5W-30 oil.
Applies to checked engine: 4.6L V8.
WIX 51522 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
Search paths only — confirm your OEM viscosity spec and quantity before checkout.
2006 Cadillac DTS oil specs: capacity conditions and filter notes
All listed filter part numbers are compatible alternatives for your vehicle. Choose any one brand, then confirm the exact part number at checkout.
Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.
Source coverage for the 2006 Cadillac DTS
Supported by Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager).
Supported by Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager).
Supported by K&N Filters, RockAuto, Purolator Part Finder, and AMSOIL Lookup.
6 checked source rows for the 2006 Cadillac DTS.
Before ordering for this 2006 Cadillac DTS
- Capacity
- 7.5 qt
- Oil type
- 5W-30
- Filter
- WIX 51522
Source check: Last checked 2026-06-24 from AMSOIL Lookup, K&N Filters, Pennzoil OATS, RockAuto, Purolator Part Finder, and Castrol (Olyslager).
Cadillac DTS oil specs by year
This table includes checked Cadillac DTS model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2011 | 7.5 qt | 5W-30 | CHAMP / LUBER-FINER PH59 |
| 2010 | 7.5 qt | 5W-30 | WIX 51522 |
| 2009 | 7.5 qt | 5W-30 | WIX 51522 |
| 2008 | 7.5 qt | 5W-30 | WIX 51522 |
| 2007 | 7.5 qt | 5W-30 | WIX 51522 |
| 2006 Current page | 7.5 qt | 5W-30 | WIX 51522 |
How we verified 2006 Cadillac DTS oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-24.
This page checked 6 sources for the 2006 Cadillac DTS. The table lists which checked source contributed capacity, oil type, or filter evidence.
We checked leading oil brands and aftermarket filter catalogs so you don't have to.
- Confidence
- Verified fit
- Sources checked
- 6
- Last checked
- 2026-06-24
- Capacity: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
- Oil type: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
- Filter: K&N Filters, RockAuto, Purolator Part Finder, and AMSOIL Lookup
| Source | Supports | Checked | Link |
|---|---|---|---|
| AMSOIL Lookup | Capacity, Oil type, Filter | 2026-06-24 | Visit brand site |
| K&N Filters | Filter | 2026-06-24 | Visit brand site |
| Pennzoil OATS | Capacity, Oil type | 2026-06-24 | Visit brand site |
| RockAuto | Filter | 2026-06-24 | Checked source |
| Purolator Part Finder | Filter | 2026-06-24 | Visit brand site |
| Castrol (Olyslager) | Capacity, Oil type | 2026-06-24 | Visit brand site |
2006 Cadillac DTS oil FAQ
Is the oil capacity measured with or without the filter?
Capacity condition matters. With filter includes a new filter. Service fill is the typical drain-and-fill amount. Dry fill is for a fresh empty engine only.
Why should I confirm before buying?
Retailer catalogs can update separately. Confirm the exact 2006 Cadillac DTS selector at checkout before you buy.
Do I also need to match the OEM oil approval?
Yes. Viscosity is only one part of the oil spec. Match the oil approval listed in your owner's manual or on the bottle before checkout.
How often should I change the oil on a 2006 Cadillac DTS?
Use the oil-life monitor or the interval in your owner's manual for this engine. Severe service can require a shorter interval.
Do I need a new drain plug gasket?
Replace it when your vehicle uses a serviceable gasket or crush washer. Confirm the gasket size and drain plug torque from the service manual or parts counter.
2006 Cadillac DTS maintenance checklist
One part checked. Look up the rest while you're here.
- Cabin air filter 2006 Cadillac DTS cabin filter part numbers
- Engine air filter 2006 Cadillac DTS engine filter part numbers
- Oil type & capacity 5W-30 · 7.5 qt Checked
Where to buy
These are retailer search paths for your vehicle's oil and filter specs. Verify final fitment at checkout.
This section may include affiliate or sponsored retailer links. They are purchase paths, not fitment evidence.
Walmart
Compare oil and filter listings for the 2006 Cadillac DTS. Confirm capacity, viscosity, and filter part number before checkout.
Search 2006 Cadillac DTS oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2006 Cadillac DTS before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2006 Cadillac DTS oil & filter →Amazon
Search Amazon listings for the 2006 Cadillac DTS and check listing fitment notes against the specs above.
Search 2006 Cadillac DTS oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2006 Cadillac DTS and verify oil capacity, viscosity, and filter part number before ordering.
Search 2006 Cadillac DTS oil & filter →Look up another vehicle
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