Checked oil specs by engine
2011 Mercury Grand Marquis oil capacity, type & filter
The 2011 Mercury Grand Marquis takes 6 qt of 5W-20 oil.
Applies to checked engine: 4.6L V8.
Champ PH820 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.
2011 Mercury Grand Marquis 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 2011 Mercury Grand Marquis
Supported by Pennzoil OATS and Castrol (Olyslager).
Supported by Pennzoil OATS and Castrol (Olyslager).
Supported by K&N Filters, Purolator Part Finder, and RockAuto.
5 checked source rows for the 2011 Mercury Grand Marquis.
Before ordering for this 2011 Mercury Grand Marquis
- Capacity
- 6 qt
- Oil type
- 5W-20
- Interval
- 5,000 mi
- Filter
- Champ PH820
Source check: Last checked 2026-06-23 from Pennzoil OATS, RockAuto, K&N Filters, Purolator Part Finder, and Castrol (Olyslager).
Mercury Grand Marquis oil specs by year
This table includes checked Mercury Grand Marquis model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2011 Current page | 6 qt | 5W-20 | CHAMP / LUBER-FINER PH820 |
| 2010 | 6 qt | 5W-20 | WIX 51372 |
| 2009 | 6 qt | 5W-20 | WIX 51372 |
| 2008 | 6 qt | 5W-20 | WIX 51372 |
| 2007 | 6 qt | 5W-20 | WIX 51372 |
| 2006 | 6 qt | 5W-20 | WIX 51372 |
| 2005 | 6 qt | 5W-20 | WIX 51372 |
How we verified 2011 Mercury Grand Marquis oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-23.
This page checked 5 sources for the 2011 Mercury Grand Marquis. 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
- 5
- Last checked
- 2026-06-23
- Capacity: Pennzoil OATS and Castrol (Olyslager)
- Oil type: Pennzoil OATS and Castrol (Olyslager)
- Filter: K&N Filters, Purolator Part Finder, and RockAuto
- Change interval: Pennzoil OATS and Castrol (Olyslager)
| Source | Supports | Checked | Link |
|---|---|---|---|
| Pennzoil OATS | Capacity, Oil type | 2026-06-23 | Visit brand site |
| RockAuto | Filter | 2026-06-23 | Checked source |
| K&N Filters | Filter | 2026-06-23 | Visit brand site |
| Purolator Part Finder | Filter | 2026-06-23 | Visit brand site |
| Castrol (Olyslager) | Capacity, Oil type | 2026-06-23 | Visit brand site |
2011 Mercury Grand Marquis 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 2011 Mercury Grand Marquis 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 2011 Mercury Grand Marquis?
Castrol's service data indicates a 5,000 mi change interval for the 2011 Mercury Grand Marquis. Always follow your owner's manual and oil-life monitor. Severe service may 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.
2011 Mercury Grand Marquis maintenance checklist
One part checked. Look up the rest while you're here.
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 2011 Mercury Grand Marquis. Confirm capacity, viscosity, and filter part number before checkout.
Search 2011 Mercury Grand Marquis oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2011 Mercury Grand Marquis before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2011 Mercury Grand Marquis oil & filter →Amazon
Search Amazon listings for the 2011 Mercury Grand Marquis and check listing fitment notes against the specs above.
Search 2011 Mercury Grand Marquis oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2011 Mercury Grand Marquis and verify oil capacity, viscosity, and filter part number before ordering.
Search 2011 Mercury Grand Marquis oil & filter →Look up another vehicle
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