Complete Oil Specifications
Mazda’s owner’s manual for the 2021 Mazda CX-5 with the SKYACTIV-G 2.5 says to use SAE 0W-20 engine oil. Only use SAE 0W-20 oil that’s “Certified For Gasoline Engines” by the American Petroleum Institute (API). Mazda says Mazda Genuine 0W-20 Oil is required to achieve optimum fuel economy.
Engine oil capacity is approximately 4.5 L (4.8 US qt) with oil filter replacement, or 4.3 L (4.5 US qt) without.
Turbo vs Non-Turbo
The 2021 CX-5’s SKYACTIV-G 2.5T turbo takes SAE 5W-30 and about 5.1 US qt with the filter. This page covers the non-turbo SKYACTIV-G 2.5 only.
What We Couldn’t Confirm
- Oil change interval. Not stated in the owner’s manual pages used here.
- OEM oil filter part number and drain plug torque. Neither appears in the owner’s manual pages used here.
FAQs
What oil does a 2021 Mazda CX-5 SKYACTIV-G 2.5 take? SAE 0W-20 oil certified by API “For Gasoline Engines”. Mazda recommends Mazda Genuine 0W-20.
How much oil does it hold? About 4.8 US qt (4.5 L) with the filter, or 4.5 US qt (4.3 L) without.