Checked oil specs by engine
2021 Toyota Prius oil capacity, type & filter
The 2021 Toyota Prius takes 4.4 qt of 0W-16 oil.
Applies to checked engine: 1.8L 4-Cyl. Also check 2021 Toyota Prius AWD e, 2021 Toyota Prius Prime .
AMSOIL EA15K01 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 Toyota Prius 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 2021 Toyota Prius
Supported by Pennzoil OATS and AMSOIL Lookup.
Supported by Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager).
Supported by K&N Filters, RockAuto, Purolator Part Finder, and AMSOIL Lookup.
6 checked source rows for the 2021 Toyota Prius.
Before ordering for this 2021 Toyota Prius
- Capacity
- 4.4 qt
- Oil type
- 0W-16
- Interval
- 10,000 mi / 12 mo
- Filter
- AMSOIL EA15K01
Source check: Last checked 2026-06-23 from AMSOIL Lookup, K&N Filters, Pennzoil OATS, RockAuto, Purolator Part Finder, and Castrol (Olyslager).
Toyota Prius oil specs by year
This table includes checked Toyota Prius model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2025 | 4.4 qt | 0W-16 | AMSOIL EA15K09 |
| 2024 | 4.4 qt | 0W-16 | AMSOIL EA15K09 |
| 2023 | 4.4 qt | 0W-16 | AMSOIL EA15K09 |
| 2022 | 4.4 qt | 0W-16 | AMSOIL EA15K01 |
| 2021 Current page | 4.4 qt | 0W-16 | AMSOIL EA15K01 |
| 2019 | 4.4 qt (multiple engines) | 0W-16 | AMSOIL EA15K01 |
| 2018 | 4.4 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2017 | 4.4 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2016 | 4.4 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2015 | 4.4 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2014 | 4.4 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2013 | 4.4 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2012 | 4.4 qt (multiple engines) | 0W-20 | AMSOIL EA15K01 |
| 2011 | 4.4 qt | 0W-20 | PRO-TEC PXL57064 |
| 2010 | 4.4 qt | 0W-20 | AMSOIL EA15K01 |
| 2009 | 3.9 qt | 5W-30 | WIX 51394 |
| 2008 | 3.9 qt | 5W-30 | WIX 51394 |
| 2007 | 3.9 qt | 5W-30 | WIX 51394 |
| 2006 | 3.9 qt | 5W-30 | WIX 51394 |
| 2005 | 3.9 qt | 5W-30 | WIX 51394 |
How we verified 2021 Toyota Prius oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-23.
This page checked 6 sources for the 2021 Toyota Prius. 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
- 6
- Last checked
- 2026-06-23
- Capacity: Pennzoil OATS and AMSOIL Lookup
- Oil type: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
- Filter: K&N Filters, 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 |
| K&N Filters | 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) | Oil type | 2026-06-23 | Visit brand site |
2021 Toyota Prius 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 Toyota Prius. Confirm capacity, viscosity, and filter part number before checkout.
Search 2021 Toyota Prius oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2021 Toyota Prius before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2021 Toyota Prius oil & filter →Amazon
Search Amazon listings for the 2021 Toyota Prius and check listing fitment notes against the specs above.
Search 2021 Toyota Prius oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2021 Toyota Prius and verify oil capacity, viscosity, and filter part number before ordering.
Search 2021 Toyota Prius oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.