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2021 Audi S3 oil capacity, type & filter

The 2021 Audi S3 takes 6 qt of 0W-30 oil.

Applies to checked engine: 2.0L 4-Cyl Turbo.

Capacity 6 qt i Based on 1 checked source: Castrol (Olyslager). Additional cross-check is still pending: a second checked capacity source. Use it as a reference, then confirm the service-fill / with-filter amount before adding oil. See how we verify. Learn how we verify fitment
Oil type 0W-30 i Based on 1 checked source: Castrol (Olyslager). Additional cross-check is still pending: a second checked oil-type source. Use it as a reference, then confirm the viscosity grade for this engine before checkout. See how we verify. Learn how we verify fitment OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout.
Oil Filters
Purolator Shown first L28161 Search L28161 K&N VF2047 Search VF2047

Purolator L28161 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.

i Based on 2 checked sources: Purolator Part Finder and K&N Filters. Additional cross-check is still pending: additional evidence. Use it as a reference, then confirm the exact filter part number at checkout. See how we verify. Learn how we verify fitment

3 sources checked Last checked: 2026-06-24 How we verify →

Where to Buy View Data Sources
Buy oil & filters:
Walmart → AutoZone → Amazon → O'Reilly →

2021 Audi S3 oil specs: capacity conditions and filter notes

Filter part numbers

All listed filter part numbers are compatible alternatives for your vehicle. Choose any one brand, then confirm the exact part number at checkout.

Capacity condition

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.

Verify before checkout

Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.

Source coverage for the 2021 Audi S3

Capacity sources

Supported by Castrol (Olyslager).

Oil type sources

Supported by Castrol (Olyslager).

Filter sources

Supported by Purolator Part Finder and K&N Filters.

Source coverage

3 checked source rows for the 2021 Audi S3.

Before ordering for this 2021 Audi S3

Checkout verification checklist
2.0L 4-Cyl Turbo Buy →
Capacity
6 qt (Service fill)
Oil type
0W-30
Interval
10,000 mi / 12 mo
Filter
Purolator L28161

Source check: Last checked 2026-06-24 from K&N Filters, Purolator Part Finder, and Castrol (Olyslager).

Audi S3 oil specs by year

This table includes checked Audi S3 model years available in our database.

Year Capacity Oil type Filter
2025 6 qt 0W-30 WIX 51032
2024 6 qt 0W-30 PRO-TEC PXL10396
2023 6 qt 0W-30 WIX 51032
2022 6 qt 0W-30 WIX 51032
2021 Current page 6 qt 0W-30 Purolator L28161
2020 6 qt 0W-30 WIX 51032
2019 6 qt 0W-30 WIX 51032
2018 5.5 qt 5W-40 PRO-TEC PXL10024
2017 5.5 qt 5W-40 PRO-TEC PXL10024
2015 5.8 qt 5W-40 WIX 51032
2014 6 qt 0W-40 PRO-TEC PXL10024

How we verified 2021 Audi S3 oil data

How we verify fitment

Checked fitment data. Last checked: 2026-06-24.

This page checked 3 sources for the 2021 Audi S3. 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 i Some oil fields are based on checked source data but still need stronger cross-check evidence. Review area: 2.0L 4-Cyl Turbo capacity, 2.0L 4-Cyl Turbo oil type, and 2.0L 4-Cyl Turbo oil filter. Use the listed values as references and confirm the exact engine before ordering or adding oil. See how we verify. Learn how we verify fitment
Sources checked
3
Last checked
2026-06-24
Field-level source support
  • Capacity: Castrol (Olyslager)
  • Oil type: Castrol (Olyslager)
  • Filter: Purolator Part Finder and K&N Filters
  • Change interval: Castrol (Olyslager)
Source Supports Checked Link
K&N Filters Filter 2026-06-24 Visit brand site
Purolator Part Finder Filter 2026-06-24 Visit brand site
Castrol (Olyslager) Capacity, Oil type 2026-06-24 Visit brand site

2021 Audi S3 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 2021 Audi S3 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 2021 Audi S3?

Castrol's service data indicates a 10,000 mi / 12 mo change interval for the 2021 Audi S3. 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.

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.

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