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Checked oil specs by engine

2021 Mazda 3 oil capacity, type & filter

Multiple engine options are listed for the 2021 Mazda 3. Select your engine below before buying oil or a filter.

2021 Mazda 3 oil specs by engine
Engine Capacity Oil Type Filter
2.5L 4-Cyl Turbo 4.8 qt 0W-20 PRO-TEC PXL57002
2.0L 4-Cyl 4.4 qt 0W-20 AMSOIL EA15K12
1.5L — — —
1.6L 4.1 qt 0W-20 —
2.2L 5.4 qt 5W-30 —

Match one of 5 checked engine options before buying oil or a filter.

2.5L 4-Cyl Turbo
Capacity 4.8 qt i Capacity condition is not listed in the checked data, so confirm whether the service-fill amount includes a new filter before adding oil. See how we verify. Learn how we verify fitment Verified fit Buy at least 5 qt total; listed capacity is 4.8 qt.
Oil type 0W-20 i Based on 3 checked sources: Pennzoil OATS, CarAraC Engine Oil, and Castrol (Olyslager). Additional cross-check is still pending: additional evidence. 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 Options cross-checked
PRO-TEC Shown first PXL57002 Search PXL57002 Purolator L14612 Search L14612

PRO-TEC PXL57002 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.

2.0L 4-Cyl
Capacity 4.4 qt Verified fit Buy at least 5 qt total; listed capacity is 4.4 qt (Service fill).
Oil type 0W-20 OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout. Verified fit
Oil Filters Options cross-checked
AMSOIL Shown first EA15K12 Search EA15K12 AMSOIL EA15K01 Search EA15K01 AMSOIL EA15K02 Search EA15K02 AMSOIL EA15K03 Search EA15K03 PRO-TEC PXL57002 Search PXL57002 Purolator L14612 Search L14612

AMSOIL EA15K12 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.

1.5L
Capacity Not confirmed Confirm the service-fill amount for this engine before adding oil.
Oil type Not confirmed Confirm the viscosity grade for this engine before checkout.
Oil Filters
No checked filter listed Use a retailer fitment tool to confirm the exact part number before ordering.
Specs not yet confirmed for this engine. Search Amazon for 2021 Mazda 3 1.5L oil →
1.6L
Capacity 4.1 qt i Based on 1 checked source: CarAraC Engine Oil. 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-20 i Based on 1 checked source: CarAraC Engine Oil. 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
No checked filter listed Use a retailer fitment tool to confirm the exact part number before ordering.
2.2L
Capacity 5.4 qt i Based on 1 checked source: CarAraC Engine Oil. 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 5W-30 i Based on 1 checked source: CarAraC Engine Oil. 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
No checked filter listed Use a retailer fitment tool to confirm the exact part number before ordering.

6 sources checked Last checked: 2026-06-27 How we verify →

Where to Buy View Data Sources
Buy oil & filters:
Walmart → AutoZone → Amazon → O'Reilly →
Full synthetic options for 0W-20
Mobil 1 Extended Performance 0W-20 → Castrol Edge 0W-20 → Pennzoil Platinum 0W-20 →

Search paths only — confirm your OEM viscosity spec and quantity before checkout.

Full synthetic options for 5W-30
Mobil 1 Extended Performance 5W-30 → Castrol Edge 5W-30 → Pennzoil Platinum 5W-30 →

Search paths only — confirm your OEM viscosity spec and quantity before checkout.

2021 Mazda 3 oil specs: capacity conditions and filter notes

Which engine applies?

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.

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.

Filter status

Filter fitment has not been fully verified for every engine listed. Confirm the part number with the retailer before ordering.

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 Mazda 3

Capacity sources

Supported by AMSOIL Lookup, Castrol (Olyslager), and CarAraC Engine Oil.

Oil type sources

Supported by Pennzoil OATS, AMSOIL Lookup, Castrol (Olyslager), and CarAraC Engine Oil.

Filter sources

Supported by Purolator Part Finder, RockAuto, and AMSOIL Lookup.

Source coverage

6 checked source rows for the 2021 Mazda 3.

Before ordering for this 2021 Mazda 3

Checkout verification checklist
2.5L 4-Cyl Turbo Buy →
Capacity
4.8 qt
Oil type
0W-20
Interval
10,000 mi / 12 mo
Filter
PRO-TEC PXL57002
2.0L 4-Cyl Verified fit Buy →
Capacity
4.4 qt (Service fill)
Oil type
0W-20
Filter
AMSOIL EA15K12
1.5L
Capacity
Unverified
Oil type
Unverified
Filter
Unverified
1.6L Buy →
Capacity
4.1 qt (Service fill)
Oil type
0W-20
Filter
Unverified
2.2L Buy →
Capacity
5.4 qt (Service fill)
Oil type
5W-30
Filter
Unverified

Source check: Last checked 2026-06-27 from AMSOIL Lookup, Pennzoil OATS, RockAuto, Purolator Part Finder, CarAraC Engine Oil, and Castrol (Olyslager).

Mazda 3 oil specs by year

This table includes checked Mazda 3 model years available in our database.

Year Capacity Oil type Filter
2025 4.8 qt 0W-20 AMSOIL EA15K12
2024 5.1 qt 0W-20 AMSOIL EA15K12
2023 4.8 qt 0W-20 AMSOIL EA15K12
2022 4.8 qt 0W-20 AMSOIL EA15K12
2021 Current page 4.8 qt (multiple engines) 0W-20 PRO-TEC PXL57002
2020 4.8 qt (multiple engines) 0W-20 PRO-TEC PXL57002
2019 4.8 qt (multiple engines) 0W-20 PRO-TEC PXL57002
2018 4.4 qt (multiple engines) 0W-20 AMSOIL EA15K12
2017 4.4 qt (multiple engines) 0W-20 AMSOIL EA15K12
2016 4.4 qt (multiple engines) 0W-20 AMSOIL EA15K12
2015 4.4 qt (multiple engines) 0W-20 CHAMP / LUBER-FINER PH2876
2014 4.4 qt (multiple engines) 0W-20 AMSOIL EA15K12
2013 4.4 qt (multiple engines) 0W-20 AMSOIL EA15K12
2012 4.5 qt (multiple engines) 0W-20 AMSOIL EA15K12
2011 5.8 qt (multiple engines) 0W-20 AMSOIL EA15K51
2010 4.5 qt (multiple engines) 0W-20 AMSOIL EA15K51
2009 4.5 qt (multiple engines) 5W-20 CHAMP / LUBER-FINER PH2835
2008 4 qt (multiple engines) 5W-30 AMSOIL EA15K51
2007 4 qt (multiple engines) 5W-30 AMSOIL EA15K51
2006 4 qt (multiple engines) 5W-30 AMSOIL EA15K51
2005 4 qt (multiple engines) 5W-20 WIX 51516

How we verified 2021 Mazda 3 oil data

How we verify fitment

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

This page checked 6 sources for the 2021 Mazda 3. 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: 2.5L 4-Cyl Turbo oil type, 1.6L capacity, 1.6L oil type, 2.2L capacity, and 2.2L oil type. 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
6
Last checked
2026-06-27
Field-level source support
  • Capacity: AMSOIL Lookup, Castrol (Olyslager), and CarAraC Engine Oil
  • Oil type: Pennzoil OATS, AMSOIL Lookup, Castrol (Olyslager), and CarAraC Engine Oil
  • Filter: Purolator Part Finder, RockAuto, and AMSOIL Lookup
  • Change interval: Pennzoil OATS, AMSOIL Lookup, Castrol (Olyslager), and CarAraC Engine Oil
Source Supports Checked Link
AMSOIL Lookup Capacity, Oil type, Filter 2026-06-27 Visit brand site
Pennzoil OATS Oil type 2026-06-27 Visit brand site
RockAuto Filter 2026-06-27 Checked source
Purolator Part Finder Filter 2026-06-27 Visit brand site
CarAraC Engine Oil Capacity, Oil type 2026-06-27 Checked source
Castrol (Olyslager) Capacity, Oil type 2026-06-27 Visit brand site

2021 Mazda 3 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.

Look up another vehicle

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