The engine variant determines the oil capacity. The base 2.5L CX-5 holds about 4.8 quarts, while the available 2.5L turbocharged version takes roughly 5.1 quarts of oil.
Engine options and official capacities
In the 2021 CX-5 lineup, Mazda offered a naturally aspirated 2.5-liter engine and a turbocharged 2.5-liter engine. Each variant has a different oil capacity, which is important for proper maintenance and oil changes.
Below are the official approximate oil capacities by engine variant for the 2021 CX-5. The figures include the oil filter.
- 2.5-liter SKYACTIV-G (non-turbo): 4.8 quarts (with filter)
- 2.5-liter SKYACTIV-G turbo: 5.1 quarts (with filter)
These figures provide a baseline for a typical oil change. Always confirm with the owner’s manual and use the recommended grade for your region.
Oil grade and maintenance tips
Mazda generally recommends synthetic 0W-20 oil for most CX-5 engines, with the exact specification listed in the owner's manual. Use the grade specified for your market and follow Mazda’s service intervals. After an oil change, run the engine briefly, then check the level with the dipstick to ensure it’s within the proper range.
Summary
In short, the 2021 Mazda CX-5’s oil capacity depends on the engine: about 4.8 quarts for the 2.5L base engine and about 5.1 quarts for the 2.5L turbo. Always refer to the owner's manual for the precise figure and the recommended oil specification.