Checked oil specs by engine
2016 Mazda CX 9 oil capacity, type & filter
The 2016 Mazda CX 9 takes 5.1 qt of 5W-30 oil.
Applies to checked engine: 2.5L 4-Cyl Turbo.
AMSOIL EA15K12 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.
2016 Mazda CX 9 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 2016 Mazda CX 9
Supported by Pennzoil OATS and AMSOIL Lookup.
Supported by Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager).
Supported by K&N Filters, Purolator Part Finder, and AMSOIL Lookup.
5 checked source rows for the 2016 Mazda CX 9.
Before ordering for this 2016 Mazda CX 9
- Capacity
- 5.1 qt
- Oil type
- 5W-30
- Interval
- 7,500 mi / 12 mo
- Filter
- AMSOIL EA15K12
Source check: Last checked 2026-06-24 from AMSOIL Lookup, K&N Filters, Pennzoil OATS, Purolator Part Finder, and Castrol (Olyslager).
Mazda CX 9 oil specs by year
This table includes checked Mazda CX 9 model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2023 | 5.1 qt | 5W-30 | AMSOIL EA15K12 |
| 2022 | 5.1 qt | 5W-30 | AMSOIL EA15K12 |
| 2021 | 5.1 qt | 5W-30 | AMSOIL EA15K12 |
| 2020 | 5.1 qt | 5W-30 | AMSOIL EA15K12 |
| 2019 | 5.1 qt | 5W-30 | AMSOIL EA15K12 |
| 2018 | 5.1 qt | 5W-30 | AMSOIL EA15K12 |
| 2017 | 5.1 qt | 5W-30 | AMSOIL EA15K12 |
| 2016 Current page | 5.1 qt | 5W-30 | AMSOIL EA15K12 |
| 2015 | 5.5 qt (multiple engines) | 0W-20 | WIX 51516 |
| 2014 | 5.5 qt (multiple engines) | 0W-20 | WIX 51516 |
| 2013 | 5.5 qt (multiple engines) | 0W-20 | WIX 51516 |
| 2012 | 5.5 qt (multiple engines) | 0W-20 | WIX 51516 |
| 2011 | 5.5 qt (multiple engines) | 0W-20 | WIX 51516 |
| 2010 | 5.5 qt (multiple engines) | 0W-20 | WIX 51516 |
How we verified 2016 Mazda CX 9 oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-24.
This page checked 5 sources for the 2016 Mazda CX 9. 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
- 2026-06-24
- Capacity: Pennzoil OATS and AMSOIL Lookup
- Oil type: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
- Filter: K&N Filters, 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 | 2026-06-24 | Visit brand site |
| K&N Filters | Filter | 2026-06-24 | Visit brand site |
| Pennzoil OATS | Capacity, Oil type | 2026-06-24 | Visit brand site |
| Purolator Part Finder | Filter | 2026-06-24 | Visit brand site |
| Castrol (Olyslager) | Oil type | 2026-06-24 | Visit brand site |
2016 Mazda CX 9 oil FAQ
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 2016 Mazda CX 9 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 2016 Mazda CX 9?
Castrol's service data indicates a 7,500 mi / 12 mo change interval for the 2016 Mazda CX 9. 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.
2016 Mazda CX 9 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 2016 Mazda CX 9. Confirm capacity, viscosity, and filter part number before checkout.
Search 2016 Mazda CX 9 oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2016 Mazda CX 9 before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2016 Mazda CX 9 oil & filter →Amazon
Search Amazon listings for the 2016 Mazda CX 9 and check listing fitment notes against the specs above.
Search 2016 Mazda CX 9 oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2016 Mazda CX 9 and verify oil capacity, viscosity, and filter part number before ordering.
Search 2016 Mazda CX 9 oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.