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2021 Mercedes-Benz S580 oil capacity, type & filter

The 2021 Mercedes-Benz S580 takes 9 qt of 0W-30 oil.

Applies to checked engine: 4.0L 8-Cyl Turbo.

Capacity 9 qt i Based on 1 checked source: Castrol (Olyslager). Additional cross-check is still pending: a second checked capacity source and capacity condition (service fill / with filter vs dry fill). 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 OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout. Verified fit
Oil Filters
ULTRA-POWER Shown first WL10399 Search WL10399

Confirm ULTRA-POWER WL10399 in the retailer selector before checkout.

i Based on 1 checked source: RockAuto. Additional cross-check is still pending: another filter catalog cross-check and alternate part-number support. 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: 2026-06-27 How we verify →

Where to Buy View Data Sources
Buy oil & filters:
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2021 Mercedes-Benz S580 oil specs: capacity conditions and filter notes

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 Mercedes-Benz S580

Capacity sources

Supported by Castrol (Olyslager).

Oil type sources

Supported by AMSOIL Lookup and Castrol (Olyslager).

Filter sources

Supported by RockAuto.

Source coverage

3 checked source rows for the 2021 Mercedes-Benz S580.

Before ordering for this 2021 Mercedes-Benz S580

Checkout verification checklist
4.0L 8-Cyl Turbo Buy →
Capacity
9 qt
Oil type
0W-30
Interval
15,500 mi
Filter
ULTRA-POWER WL10399

Source check: Last checked 2026-06-27 from AMSOIL Lookup, RockAuto, and Castrol (Olyslager).

Mercedes-Benz S580 oil specs by year

This table includes checked Mercedes-Benz S580 model years available in our database.

No other published Mercedes-Benz S580 years are available yet.

How we verified 2021 Mercedes-Benz S580 oil data

How we verify fitment

Checked fitment data. Last checked: 2026-06-27.

This page checked 3 sources for the 2021 Mercedes-Benz S580. 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: 4.0L 8-Cyl Turbo capacity and 4.0L 8-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
2026-06-27
Field-level source support
  • Capacity: Castrol (Olyslager)
  • Oil type: AMSOIL Lookup and Castrol (Olyslager)
  • Filter: RockAuto
  • Change interval: AMSOIL Lookup and Castrol (Olyslager)
Source Supports Checked Link
AMSOIL Lookup Oil type 2026-06-27 Visit brand site
RockAuto Filter 2026-06-27 Checked source
Castrol (Olyslager) Capacity, Oil type 2026-06-27 Visit brand site

2021 Mercedes-Benz S580 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 Mercedes-Benz S580 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 Mercedes-Benz S580?

Castrol's service data indicates a 15,500 mi change interval for the 2021 Mercedes-Benz S580. 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.

2021 Mercedes-Benz S580 maintenance checklist

One part checked. Look up the rest while you're here.

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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