The 2017 Mazda6 with the 2.5-liter SKYACTIV-G engine typically requires about 4.5 quarts (roughly 4.3 liters) of engine oil when performing a full change with a new filter. If you’re not replacing the filter, the capacity is around 4.1 quarts (about 3.9 liters). Always confirm with the owner’s manual or your dealer for your specific vehicle configuration.
Oil capacity for the 2017 Mazda6 2.5 L
The following figures reflect standard oil changes, including a new filter. These numbers are widely cited for this engine, but regional specifications or OEM guidance may vary slightly.
- With a new oil filter: approximately 4.5 quarts (4.3 liters).
- Without a filter (drain and fill only, not typical practice): about 4.1 quarts (3.9 liters).
Actual capacity can vary by variant, climate, and whether the filter is replaced. Always top up to the correct level using a clean dipstick and refer to the owner’s manual for your market.
Recommended oil type and maintenance notes
For the 2017 Mazda6 2.5 L, Mazda commonly recommends a full-synthetic 0W-20 oil in many regions. Use the specified grade and follow the recommended service interval in your manual (often around 5,000 miles or 8,000 kilometers under standard driving, with potential extensions under Mazda’s maintenance programs). Always use a Mazda-approved oil filter and dispose of used oil according to local regulations.
Summary
In brief, plan for about 4.5 quarts (4.3 liters) of oil when changing the oil with a new filter, and roughly 4.1 quarts (3.9 liters) if no filter is replaced. Verify exact figures in your owner's manual and use 0W-20 full-synthetic oil as recommended for best results.