Checked oil specs by engine
2021 Audi SQ8 oil capacity, type & filter
The 2021 Audi SQ8 takes 10 qt of 0W-20 oil. Supported by 4 checked sources.
Applies to checked engine: 4.0L V8 Turbo.
PO99500EX is copied into the checkout checklist as the first source-backed candidate for the 4.0L V8 Turbo. 2 other candidate numbers are kept for cross-checking; confirm the exact filter in the retailer selector before buying.
Same oil capacity and viscosity across all 6 checked years of this model.
Same oil specs also checked for the 2021 Audi SQ7.
Capacity shown is the Service fill. Confirm before adding oil.
Search paths only — confirm the bottle matches your viscosity, API/OEM approval requirements, and purchase quantity before checkout.
2021 Audi SQ8 oil specs: capacity conditions and filter notes
The filter part numbers listed above come from checked source rows for this vehicle and engine. Use them as candidates, then confirm the exact part number at checkout; do not substitute across engine rows.
With filter means the volume includes a new filter. Service fill is the typical drain-and-fill amount. Dry fill is for a fresh empty engine only.
Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.
Quick reference for this 2021 Audi SQ8
- Capacity
- 10 qt (Service fill)
- Oil type
- 0W-20
- Interval
- 10,000 mi / 12 mo
- Filter
- PO99500EX
Source check: Last checked 2026-06-23 from RockAuto parts catalog, K&N Filters, Purolator fitment catalog, and Castrol fitment database.
Checked oil rows for the 2021 Audi SQ8 share the listed capacity, viscosity, and filter pattern with 2021 Audi SQ7. This page remains keyed to the exact SQ8 row; confirm that model in the seller selector before buying oil or a filter.
Audi SQ8 oil specs by year
6 checked Audi SQ8 years in the database. Open the exact year page to confirm oil spec for your engine before buying.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2025 | 10 qt | 0W-20 | PO99500EX |
| 2024 | 10 qt | 0W-20 | Purolator PL21507 |
| 2023 | 10 qt | 0W-20 | PO99500EX |
| 2022 | 10 qt | 0W-20 | PO99500EX |
| 2021 Current page | 10 qt | 0W-20 | PO99500EX |
| 2020 | 10 qt | 0W-20 | PO99500EX |
How we verified 2021 Audi SQ8 oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-23.
This page checked 4 sources for the 2021 Audi SQ8. Capacity: Castrol fitment database; oil type: Castrol fitment database; filter: Purolator fitment catalog, RockAuto parts catalog, and K&N Filters.
- Confidence
- Cross-check pending
- Sources checked
- 4
- Last checked
- 2026-06-23
- Capacity: Castrol fitment database
- Oil type: Castrol fitment database
- OEM oil spec: Not source-backed on this page
- Filter: Purolator fitment catalog, RockAuto parts catalog, and K&N Filters
- Change interval: Castrol fitment database
| Source | Supports | Checked | Link |
|---|---|---|---|
| RockAuto parts catalog | Filter | 2026-06-23 | Checked source |
| K&N Filters | Filter | 2026-06-23 | Visit brand site |
| Purolator fitment catalog | Filter | 2026-06-23 | Visit brand site |
| Castrol fitment database | Capacity, Oil type, Change interval | 2026-06-23 | Visit brand site |
2021 Audi SQ8 oil questions that affect checkout
Does the listed capacity include the filter?
Check the capacity condition shown above. With filter includes a new filter; service fill is the normal drain-and-fill amount; dry fill is for a fresh empty engine.
How often should I change the oil on a 2021 Audi SQ8?
Castrol's service data indicates a 10,000 mi / 12 mo change interval for the 2021 Audi SQ8. Your actual service need depends on driving conditions and the oil-life monitor reading. Always confirm against your owner's manual; severe-duty cycles may shorten the interval.
2021 Audi SQ8 oil — questions before buying
- Can I use 5W-20 or 5W-30 instead of 0W-20 in my 2021 Audi SQ8?
- The checked source rows on this page list 0W-20 for the 2021 Audi SQ8. Use 0W-20 unless your owner's manual, oil cap, or service information for your exact engine allows another grade. If a retailer suggests 5W-20 or 5W-30, match the engine row first and confirm the grade before buying.
2021 Audi SQ8 maintenance checklist
One part checked. Look up the rest while you're here.
- Cabin air filter 2021 Audi SQ8 cabin filter part numbers
- Engine air filter 2021 Audi SQ8 engine filter part numbers
- Wiper blade size 2021 Audi SQ8 driver & passenger blade sizes
- Oil type & capacity 0W-20 · 10 qt Checked
Where to buy
These are retailer search paths for listed specs on this page. Use the retailer's vehicle selector at checkout to confirm before ordering.
This section may include affiliate or sponsored retailer links. They are search paths, not fitment evidence.
Walmart
Search Walmart for 2021 Audi SQ8 oil and filter, then match the listing specs against the capacity and viscosity shown above before adding to cart.
Search 2021 Audi SQ8 oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2021 Audi SQ8 to confirm oil capacity, viscosity, and filter fitment before checkout.
Search 2021 Audi SQ8 oil & filter →Amazon
Search Amazon for the 2021 Audi SQ8 oil and filter and verify the listing's engine fit note matches your engine before ordering.
Search 2021 Audi SQ8 oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2021 Audi SQ8 oil and filter and cross-check capacity, viscosity, and filter part number against the specs above.
Search 2021 Audi SQ8 oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.