Checked oil specs by engine
2025 Audi A6 allroad oil capacity, type & filter
The 2025 Audi A6 allroad takes 8 qt of 0W-20 oil.
Applies to checked engine: 3.0L V6 Turbo Hybrid.
AMSOIL 51458341 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.
2025 Audi A6 allroad 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 2025 Audi A6 allroad
Supported by AMSOIL Lookup and Castrol (Olyslager).
Supported by AMSOIL Lookup and Castrol (Olyslager).
Supported by K&N Filters, RockAuto, Purolator Part Finder, and AMSOIL Lookup.
5 checked source rows for the 2025 Audi A6 allroad.
Before ordering for this 2025 Audi A6 allroad
- Capacity
- 8 qt
- Oil type
- 0W-20
- Interval
- 10,000 mi / 12 mo
- Filter
- AMSOIL 51458341
Source check: Last checked 2026-06-27 from AMSOIL Lookup, K&N Filters, RockAuto, Purolator Part Finder, and Castrol (Olyslager).
Audi A6 allroad oil specs by year
This table includes checked Audi A6 allroad model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2025 Current page | 8 qt | 0W-20 | AMSOIL 51458341 |
| 2024 | 8 qt | 0W-20 | AMSOIL 51456052 |
| 2022 | 8 qt | 0W-20 | PO99500EX |
| 2021 | 8 qt | 0W-20 | Purolator PL21507 |
How we verified 2025 Audi A6 allroad oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-27.
This page checked 5 sources for the 2025 Audi A6 allroad. 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
- 2026-06-27
- Capacity: AMSOIL Lookup and Castrol (Olyslager)
- Oil type: AMSOIL Lookup and Castrol (Olyslager)
- Filter: K&N Filters, RockAuto, Purolator Part Finder, and AMSOIL Lookup
- Change interval: AMSOIL Lookup and Castrol (Olyslager)
| Source | Supports | Checked | Link |
|---|---|---|---|
| AMSOIL Lookup | Capacity, Oil type, Filter | 2026-06-27 | Visit brand site |
| K&N Filters | Filter | 2026-06-27 | Visit brand site |
| RockAuto | Filter | 2026-06-27 | Checked source |
| Purolator Part Finder | Filter | 2026-06-27 | Visit brand site |
| Castrol (Olyslager) | Capacity, Oil type | 2026-06-27 | Visit brand site |
2025 Audi A6 allroad 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 2025 Audi A6 allroad 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 2025 Audi A6 allroad?
Castrol's service data indicates a 10,000 mi / 12 mo change interval for the 2025 Audi A6 allroad. 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.
2025 Audi A6 allroad maintenance checklist
One part checked. Look up the rest while you're here.
- Cabin air filter 2025 Audi A6 allroad cabin filter part numbers
- Wiper blade size 2025 Audi A6 allroad driver & passenger blade sizes
- Oil type & capacity 0W-20 · 8 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 2025 Audi A6 allroad. Confirm capacity, viscosity, and filter part number before checkout.
Search 2025 Audi A6 allroad oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2025 Audi A6 allroad before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2025 Audi A6 allroad oil & filter →Amazon
Search Amazon listings for the 2025 Audi A6 allroad and check listing fitment notes against the specs above.
Search 2025 Audi A6 allroad oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2025 Audi A6 allroad and verify oil capacity, viscosity, and filter part number before ordering.
Search 2025 Audi A6 allroad oil & filter →Look up another vehicle
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