The 2017 Mazda6’s standard engine uses synthetic 0W-20 oil, meeting ILSAC GF-5/API SN specifications. The oil capacity is about 4.5 quarts with a filter, and full-service changes are typically every 7,500 miles or 12 months under normal driving, with more frequent changes under severe conditions.
In 2017, the Mazda6 lineup was built around the 2.5-liter SKYACTIV-G engine. This article lays out the official oil specification, intake capacity, and recommended service intervals. If your particular vehicle has a different engine variant or is in a market with alternate specs, always verify with the owner’s manual or a Mazda dealer.
Recommended oil type for the 2.5L SKYACTIV-G
Below are the official guidance elements you should follow for the most common 2017 Mazda6 setup. The list consolidates the viscosity, certification and compatibility requirements to help you select the right oil.
- Viscosity: 0W-20 synthetic
- Standards: ILSAC GF-5 or API SN-certified synthetic oil
- Oil family: Mazda-approved synthetic oil or any brand that also meets the 0W-20 GF-5/SN specification
- Brand examples: Mazda Genuine Oil or other reputable brands (e.g., Castrol, Mobil 1, Pennzoil) as long as they meet the 0W-20 GF-5/SN standard
Note: Always check your owner's manual for regional viscosity allowances or exceptions, since some markets may permit alternate grades depending on climate conditions.
Oil capacity and maintenance schedule
Before listing capacity and service timing, it helps to know the practical figures drivers rely on for planning maintenance and costs.
- Oil capacity (with filter): approximately 4.5 quarts (about 4.3 liters)
- Oil change interval: every 7,500 miles or 12 months under normal driving with synthetic 0W-20
- Severe conditions: more frequent changes, typically around every 5,000 miles
Always confirm exact numbers in the owner’s manual for your specific vehicle, since production changes or regional variants can affect capacity and intervals by small margins.
Turbo engine note
In 2017, the Mazda6 typically did not offer a factory turbocharged engine in most markets. If your vehicle features a turbocharged 2.5L engine, consult the owner's manual for the precise oil grade and capacity, as turbo setups can have different requirements.
Summary
For the 2017 Mazda6, the standard 2.5L SKYACTIV-G engine generally requires synthetic 0W-20 oil that meets ILSAC GF-5/API SN specifications. The oil capacity is about 4.5 quarts with a filter, and maintenance intervals are about every 7,500 miles or 12 months under normal conditions, with more frequent changes under severe driving. Always refer to the official owner’s manual or a Mazda dealer for your exact configuration and regional specifications.


