Checked oil specs by engine
2018 Mazda 3 oil capacity, type & filter
The 2018 Mazda 3 oil capacity is 4.4 qt (2.0L 4-Cyl) and 4.8 qt (2.5L 4-Cyl). All engines use 0W-20 oil.
| Engine | Capacity | Oil Type | Filter |
|---|---|---|---|
| 2.0L 4-Cyl | 4.4 qt | 0W-20 | AMSOIL EA15K12 |
| 2.5L 4-Cyl | 4.8 qt | 0W-20 | CHAMP / LUBER-FINER PH2876 |
Match one of 2 checked engine options before buying oil or a filter.
AMSOIL EA15K12 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
Champ PH2876 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.
2018 Mazda 3 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 2018 Mazda 3
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 2018 Mazda 3.
Before ordering for this 2018 Mazda 3
- Capacity
- 4.4 qt
- Oil type
- 0W-20
- Interval
- 7,500 mi / 12 mo
- Filter
- AMSOIL EA15K12
- Capacity
- 4.8 qt
- Oil type
- 0W-20
- Interval
- 10,000 mi / 12 mo
- Filter
- Champ PH2876
Source check: Last checked 2026-06-23 from AMSOIL Lookup, Pennzoil OATS, RockAuto, Purolator Part Finder, 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 | 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 Current page | 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 2018 Mazda 3 oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-23.
This page checked 5 sources for the 2018 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
- 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 |
2018 Mazda 3 maintenance checklist
One part checked. Look up the rest while you're here.
- Cabin air filter 2018 Mazda 3 cabin filter part numbers
- Engine air filter 2018 Mazda 3 engine filter part numbers
- Wiper blade size 2018 Mazda 3 driver & passenger blade sizes
- Oil type & capacity 0W-20 · 4.4 qt Checked
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 2018 Mazda 3. Confirm capacity, viscosity, and filter part number before checkout.
Search 2018 Mazda 3 oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2018 Mazda 3 before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2018 Mazda 3 oil & filter →Amazon
Search Amazon listings for the 2018 Mazda 3 and check listing fitment notes against the specs above.
Search 2018 Mazda 3 oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2018 Mazda 3 and verify oil capacity, viscosity, and filter part number before ordering.
Search 2018 Mazda 3 oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.