Checked oil specs by engine
2011 Buick LaCrosse oil capacity, type & filter
The 2011 Buick LaCrosse oil capacity is 5 qt (2.4L 4-Cyl) and 5.5 qt (3.6L V6) and 6 qt (3.0L V6). All engines use 5W-30 oil.
Match one of 3 checked engine options before buying oil or a filter.
Champ P3244 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
PRO-TEC PXL10255 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
2011 Buick LaCrosse oil specs: capacity conditions and filter notes
Check the door jamb sticker, owner's manual, or displacement badge on the engine cover. Match it to the engine options listed above before buying oil or a filter.
All listed filter part numbers are compatible alternatives for your vehicle. Choose any one brand, then confirm the exact part number at checkout.
Filter fitment has not been fully verified for every engine listed. Confirm the part number with the retailer before ordering.
Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.
Source coverage for the 2011 Buick LaCrosse
Supported by Pennzoil OATS, AMSOIL Lookup, Valvoline Product Finder, and Castrol (Olyslager).
Supported by Pennzoil OATS, AMSOIL Lookup, Valvoline Product Finder, and Castrol (Olyslager).
Supported by RockAuto, Purolator Part Finder, and AMSOIL Lookup.
6 checked source rows for the 2011 Buick LaCrosse.
Before ordering for this 2011 Buick LaCrosse
- Capacity
- 5 qt
- Oil type
- 5W-30
- Filter
- Champ P3244
- Capacity
- 5.5 qt
- Oil type
- 5W-30
- Filter
- PRO-TEC PXL10255
- Capacity
- 6 qt
- Oil type
- 5W-30
- Filter
- Unverified
Source check: Last checked 2026-06-25 from Pennzoil OATS, AMSOIL Lookup, RockAuto, Purolator Part Finder, Valvoline Product Finder, and Castrol (Olyslager).
Buick LaCrosse oil specs by year
This table includes checked Buick LaCrosse model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2019 | 5 qt (multiple engines) | 0W-20 | AMSOIL EA15K50 |
| 2018 | 5 qt (multiple engines) | 0W-20 | AMSOIL EA15K50 |
| 2017 | 6 qt (multiple engines) | 5W-30 | PUROLATOR PL21495 |
| 2016 | 5 qt (multiple engines) | 5W-30 | CHAMP / LUBER-FINER P3244 |
| 2015 | 5 qt (multiple engines) | 5W-30 | Purolator L15436 |
| 2014 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
| 2013 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
| 2012 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
| 2011 Current page | 5 qt (multiple engines) | 5W-30 | CHAMP / LUBER-FINER P3244 |
| 2010 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
How we verified 2011 Buick LaCrosse oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-25.
This page checked 6 sources for the 2011 Buick LaCrosse. 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
- Cross-check pending
- Sources checked
- 6
- Last checked
- 2026-06-25
- Capacity: Pennzoil OATS, AMSOIL Lookup, Valvoline Product Finder, and Castrol (Olyslager)
- Oil type: Pennzoil OATS, AMSOIL Lookup, Valvoline Product Finder, and Castrol (Olyslager)
- Filter: RockAuto, Purolator Part Finder, and AMSOIL Lookup
| Source | Supports | Checked | Link |
|---|---|---|---|
| Pennzoil OATS | Capacity, Oil type | 2026-06-25 | Visit brand site |
| AMSOIL Lookup | Capacity, Oil type, Filter | 2026-06-25 | Visit brand site |
| RockAuto | Filter | 2026-06-25 | Checked source |
| Purolator Part Finder | Filter | 2026-06-25 | Visit brand site |
| Valvoline Product Finder | Capacity, Oil type | 2026-06-25 | Checked source |
| Castrol (Olyslager) | Capacity, Oil type | 2026-06-25 | Visit brand site |
2011 Buick LaCrosse oil FAQ
Which engine configuration applies to my vehicle?
Use the door jamb sticker, owner's manual, or engine cover badge to identify your engine, then match it to the engine options listed above.
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 Buick LaCrosse 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 Buick LaCrosse?
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.
Where to buy
These are retailer search paths for your vehicle. The specs above are checked — use the retailer's vehicle selector at checkout to confirm before ordering.
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 Buick LaCrosse. Confirm capacity, viscosity, and filter part number before checkout.
Search 2011 Buick LaCrosse oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2011 Buick LaCrosse before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2011 Buick LaCrosse oil & filter →Amazon
Search Amazon listings for the 2011 Buick LaCrosse and check listing fitment notes against the specs above.
Search 2011 Buick LaCrosse oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2011 Buick LaCrosse and verify oil capacity, viscosity, and filter part number before ordering.
Search 2011 Buick LaCrosse oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.