Checked oil specs by engine
2021 Lexus IS350 oil capacity, type & filter
The 2021 Lexus IS350 takes 6.1 qt of 0W-20 oil. Supported by 4 checked sources.
Applies to checked engine: 3.5L 6-Cyl.
Champ P968 is copied into the checkout checklist as the first source-backed candidate for the 3.5L 6-Cyl. 5 other candidate numbers are kept for cross-checking; confirm the exact filter in the retailer selector before buying.
If you prefer a Lexus/Toyota Genuine filter, look up the exact OEM part number in your owner’s manual or Lexus’s official parts catalog before ordering.
Oil specs changed across adjacent model years (2020 and 2022) compared with this 2021 page — confirm this is the correct model year before ordering.
Capacity shown is the With filter. Confirm before adding oil.
Search paths only — confirm the bottle matches your viscosity, API/OEM approval requirements, and purchase quantity before checkout.
2021 Lexus IS350 oil specs: capacity conditions and filter notes
The filter part numbers listed above come from checked source rows for this vehicle and engine. Use them as candidates, then confirm the exact part number at checkout; do not substitute across engine rows.
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.
Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.
Quick reference for this 2021 Lexus IS350
- Capacity
- 6.1 qt (With filter)
- Oil type
- 0W-20
- Interval
- Check owner's manual / oil-life monitor
- Filter
- Champ P968
Source check: Last checked 2026-06-23 from AMSOIL fitment lookup, Pennzoil oil application database, RockAuto parts catalog, and Purolator fitment catalog.
Lexus IS350 oil specs by year
The 2021 page is the fifth-newest IS350 oil record. Oil specs changed in the 2022 and 2020 model years — confirm you are on the correct year before buying oil or a filter.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2025 | 6.8 qt | 0W-20 | AMSOIL EA15K02 |
| 2024 | 6.8 qt | 0W-20 | AMSOIL EA15K02 |
| 2023 | 6.8 qt | 0W-20 | AMSOIL EA15K02 |
| 2022 | 6.8 qt | 0W-20 | AMSOIL EA15K02 |
| 2021 Current page | 6.1 qt | 0W-20 | CHAMP / LUBER-FINER P968 |
| 2020 | 6.8 qt | 0W-20 | AMSOIL EA15K02 |
| 2019 | 6.1 qt | 0W-20 | CHAMP / LUBER-FINER P968 |
| 2018 | 6.8 qt | 0W-20 | AMSOIL EA15K49 |
| 2013 | 6.7 qt | 5W-30 | CHAMP / LUBER-FINER P968 |
| 2012 | 6.8 qt | 5W-30 | CHAMP / LUBER-FINER P968 |
| 2011 | 6.7 qt | 5W-30 | AMSOIL EA15K49 |
| 2010 | 6.8 qt | 5W-30 | CHAMP / LUBER-FINER P968 |
| 2009 | 6.7 qt | 5W-30 | AMSOIL EA15K49 |
| 2008 | 6.7 qt | 5W-30 | AMSOIL EA15K49 |
| 2007 | 6.7 qt | 5W-30 | AMSOIL EA15K49 |
| 2006 | 6.7 qt | 5W-30 | AMSOIL EA15K49 |
How we verified 2021 Lexus IS350 oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-23.
This page checked 4 sources for the 2021 Lexus IS350. Capacity: Pennzoil oil application database; oil type: Pennzoil oil application database and AMSOIL fitment lookup; filter: Purolator fitment catalog, AMSOIL fitment lookup, and RockAuto parts catalog.
- Confidence
- Cross-check pending
- Sources checked
- 4
- Last checked
- 2026-06-23
- Capacity: Pennzoil oil application database
- Oil type: Pennzoil oil application database and AMSOIL fitment lookup
- OEM oil spec: Not source-backed on this page
- Filter: Purolator fitment catalog, AMSOIL fitment lookup, and RockAuto parts catalog
- Change interval: Not source-backed on this page
| Source | Supports | Checked | Link |
|---|---|---|---|
| AMSOIL fitment lookup | Oil type, Filter | 2026-06-23 | Visit brand site |
| Pennzoil oil application database | Capacity, Oil type | 2026-06-23 | Visit brand site |
| RockAuto parts catalog | Filter | 2026-06-23 | Checked source |
| Purolator fitment catalog | Filter | 2026-06-23 | Visit brand site |
2021 Lexus IS350 oil — questions before buying
- Can I use 5W-20 or 5W-30 instead of 0W-20 in my 2021 Lexus IS350?
- The checked source rows on this page list 0W-20 for the 2021 Lexus IS350. Use 0W-20 unless your owner's manual, oil cap, or service information for your exact engine allows another grade. If a retailer suggests 5W-20 or 5W-30, match the engine row first and confirm the grade before buying.
- Did the Lexus IS350 change its recommended oil viscosity across model years?
- Yes. Checked records show the Lexus IS350 has specified more than one viscosity grade across model years. 2006–2013: 5W-30; 2018–2025: 0W-20. Confirm the viscosity shown on this page matches your exact year before buying oil.
2021 Lexus IS350 maintenance checklist
One part checked. Look up the rest while you're here.
Where to buy
These are retailer search paths for listed specs on this page. Use the retailer's vehicle selector at checkout to confirm before ordering.
This section may include affiliate or sponsored retailer links. They are search paths, not fitment evidence.
Walmart
Search Walmart for 2021 Lexus IS350 oil and filter, then match the listing specs against the capacity and viscosity shown above before adding to cart.
Search 2021 Lexus IS350 oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2021 Lexus IS350 to confirm oil capacity, viscosity, and filter fitment before checkout.
Search 2021 Lexus IS350 oil & filter →Amazon
Search Amazon for the 2021 Lexus IS350 oil and filter and verify the listing's engine fit note matches your engine before ordering.
Search 2021 Lexus IS350 oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2021 Lexus IS350 oil and filter and cross-check capacity, viscosity, and filter part number against the specs above.
Search 2021 Lexus IS350 oil & filter →Look up another vehicle
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