Checked oil specs by engine
2021 Chevrolet Suburban oil capacity, type & filter
The 2021 Chevrolet Suburban oil capacity is 8 qt (5.3L V8) and 8 qt (6.2L V8) and 7 qt (3.0L 6-Cyl Turbo Diesel). All engines use 0W-20 oil.
| Engine | Capacity | Oil Type | Filter |
|---|---|---|---|
| 5.3L V8 | 8 qt | 0W-20 | AMSOIL EA15K01 |
| 6.2L V8 | 8 qt | 0W-20 | AMSOIL EA15K01 |
| 3.0L 6-Cyl Turbo Diesel | 7 qt | 0W-20 | WIX 51032 |
Match one of 3 checked engine options before buying oil or a filter.
AMSOIL EA15K01 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
AMSOIL EA15K01 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
WIX 51032 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.
2021 Chevrolet Suburban 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.
Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.
Source coverage for the 2021 Chevrolet Suburban
Supported by Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager).
Supported by Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager).
Supported by RockAuto, Purolator Part Finder, and AMSOIL Lookup.
5 checked source rows for the 2021 Chevrolet Suburban.
Before ordering for this 2021 Chevrolet Suburban
- Capacity
- 8 qt
- Oil type
- 0W-20
- Interval
- 12 mo
- Filter
- AMSOIL EA15K01
- Capacity
- 8 qt
- Oil type
- 0W-20
- Filter
- AMSOIL EA15K01
- Capacity
- 7 qt
- Oil type
- 0W-20
- Interval
- 12 mo
- Filter
- WIX 51032
Source check: Last checked 2026-06-23 from AMSOIL Lookup, Pennzoil OATS, RockAuto, Purolator Part Finder, and Castrol (Olyslager).
Chevrolet Suburban oil specs by year
This table includes checked Chevrolet Suburban model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2025 | 7 qt (multiple engines) | 0W-20 | WIX 51032 |
| 2024 | 8 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2023 | 8 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2022 | 8 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2021 Current page | 8 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2020 | 8 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2019 | 8 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2018 | 8.5 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2017 | 8.5 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2016 | 8 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2015 | 8 qt | 0W-20 | AMSOIL EA15K01 |
| 2014 | 6 qt (multiple engines) | 5W-30 | AMSOIL EA15K50 |
| 2013 | 6 qt (multiple engines) | 5W-30 | WIX 51032 |
How we verified 2021 Chevrolet Suburban oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-23.
This page checked 5 sources for the 2021 Chevrolet Suburban. 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
- 2026-06-23
- Capacity: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
- Oil type: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
- Filter: RockAuto, Purolator Part Finder, and AMSOIL Lookup
- Change interval: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
| Source | Supports | Checked | Link |
|---|---|---|---|
| AMSOIL Lookup | Capacity, Oil type, Filter | 2026-06-23 | Visit brand site |
| Pennzoil OATS | Capacity, Oil type | 2026-06-23 | Visit brand site |
| RockAuto | Filter | 2026-06-23 | Checked source |
| Purolator Part Finder | Filter | 2026-06-23 | Visit brand site |
| Castrol (Olyslager) | Capacity, Oil type | 2026-06-23 | Visit brand site |
2021 Chevrolet Suburban 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 2021 Chevrolet Suburban 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 Chevrolet Suburban?
Change intervals vary by engine option for this vehicle. 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 Chevrolet Suburban maintenance checklist
One part checked. Look up the rest while you're here.
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 2021 Chevrolet Suburban. Confirm capacity, viscosity, and filter part number before checkout.
Search 2021 Chevrolet Suburban oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2021 Chevrolet Suburban before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2021 Chevrolet Suburban oil & filter →Amazon
Search Amazon listings for the 2021 Chevrolet Suburban and check listing fitment notes against the specs above.
Search 2021 Chevrolet Suburban oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2021 Chevrolet Suburban and verify oil capacity, viscosity, and filter part number before ordering.
Search 2021 Chevrolet Suburban oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.