--- title: "2017-2025 Mazda CX-5 Transmission Fluid & Coolant" description: "Which transmission fluid, coolant, and brake fluid the 2017-2025 Mazda CX-5 takes, with capacities and the specifications each one has to meet. Transmission: Mazda Original Oil ATF-FZ in the 6-speed SkyActiv-Drive automatic (all engines, including the turbo and diesel); total fill ~8.0-8.5 qt, no owner-serviceable dipstick.. Coolant: Mazda FL-22 type long-life coolant (green); no scheduled interval under normal Mazda maintenance, inspect and top off, replace if contaminated. Diesel models use a separate turbo/EGR coolant circuit.." url: "https://whichcarparts.com/cars/mazda/cx-5/2017-2025/fluids" updated: "2026-08-21" --- # 2017-2025 Mazda CX-5 Fluid Types and Capacities Which transmission fluid, coolant, and brake fluid the 2017-2025 Mazda CX-5 takes, with capacities and the specifications each one has to meet. Transmission: Mazda Original Oil ATF-FZ in the 6-speed SkyActiv-Drive automatic (all engines, including the turbo and diesel); total fill ~8.0-8.5 qt, no owner-serviceable dipstick.. Coolant: Mazda FL-22 type long-life coolant (green); no scheduled interval under normal Mazda maintenance, inspect and top off, replace if contaminated. Diesel models use a separate turbo/EGR coolant circuit.. ## 2017-2025 Mazda CX-5 fluid guide (High confidence) | System | Fluid type & capacity | | --- | --- | | Coolant | Mazda FL-22 type long-life coolant (green); no scheduled interval under normal Mazda maintenance, inspect and top off, replace if contaminated. Diesel models use a separate turbo/EGR coolant circuit. | | Transmission | Mazda Original Oil ATF-FZ in the 6-speed SkyActiv-Drive automatic (all engines, including the turbo and diesel); total fill ~8.0-8.5 qt, no owner-serviceable dipstick. | | Brake fluid | SAE J1703 / FMVSS 116 DOT-3 (DOT-4 also acceptable) | | Power steering | None (electric power steering) | | Differential | AWD models: Mazda Long Life Hypoid Gear Oil SG1 in the rear differential and transfer case | Note: Plain washer fluid; no special spec ## Which Mazda CX-5 model years does this cover? These fluids specifications apply to every Mazda CX-5 built from 2017 through 2025, the KF (2nd generation), compact suv. Nothing in this specification changes between those model years. - [2017 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2017) - [2018 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2018) - [2019 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2019) - [2020 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2020) - [2021 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2021) - [2022 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2022) - [2023 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2023) - [2024 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2024) - [2025 CX-5](https://whichcarparts.com/cars/mazda/cx-5/2025) ## What changed during the 2017-2025 Mazda CX-5 | Years | What changed | | --- | --- | | 2017 | All-new KF generation on a stiffer platform; 2.0L dropped from the US lineup, 2.5L becomes the sole gas engine | | 2018 | Cylinder deactivation added to the 2.5L; g-Vectoring Control standard | | 2019 | 2.5L Turbo and 2.2L SkyActiv-D diesel both introduced (diesel on Signature trim only) | | 2020 | Diesel discontinued after this model year due to low take rate | | 2022 | Mid-cycle refresh: revised front/rear styling, wheel designs, and more standard driver-assist tech; mechanical specs carry over | | 2024 | Trim names simplified (2.5 S, 2.5 S Select, 2.5 S Preferred, 2.5 Turbo, etc.); final CX-5 model year before the 2026 all-new third generation | ## 2017-2025 Mazda CX-5 fluids: common questions ### What transmission fluid does a 2017-2025 Mazda CX-5 take? Mazda Original Oil ATF-FZ in the 6-speed SkyActiv-Drive automatic (all engines, including the turbo and diesel); total fill ~8.0-8.5 qt, no owner-serviceable dipstick.. Transmission fluid specifications are not interchangeable. Friction modifiers differ between them, and the wrong fluid causes shudder long before it causes failure. ### What coolant does a 2017-2025 Mazda CX-5 use? Mazda FL-22 type long-life coolant (green); no scheduled interval under normal Mazda maintenance, inspect and top off, replace if contaminated. Diesel models use a separate turbo/EGR coolant circuit.. ### What brake fluid does a 2017-2025 Mazda CX-5 take? SAE J1703 / FMVSS 116 DOT-3 (DOT-4 also acceptable). ### What differential fluid does a 2017-2025 Mazda CX-5 take? AWD models: Mazda Long Life Hypoid Gear Oil SG1 in the rear differential and transfer case. ## Sources - [Mazda USA official 2019 CX-5 owner's manual, engine/electrical specifications (battery Ah, spark plug part numbers)](https://www.mazdausa.com/static/manuals/2019/cx5/contents/10020101.html) - [Mazda USA official 2019 CX-5 owner's manual, coolant/lubricant classifications](https://www.mazdausa.com/static/manuals/2019/cx5/contents/10020100.html) - [Mazda USA official 2025 CX-5 owner's manual, scheduled maintenance intervals](https://www.mazdausa.com/static/manuals/2025/cx-5/contents/07020201.html) - [NHTSA recall 18V-426, side curtain air bags](https://api.nhtsa.gov/recalls/recallsByVehicle?make=mazda&model=cx-5&modelYear=2018) - [NHTSA recall 19V-497, PCM software stall](https://api.nhtsa.gov/recalls/recallsByVehicle?make=mazda&model=cx-5&modelYear=2018) - [NHTSA recall 21V-875, low-pressure fuel pump](https://api.nhtsa.gov/recalls/recallsByVehicle?make=mazda&model=cx-5&modelYear=2019) - [NHTSA TSB library, Service Alert SA-041/18 rocker arm inspection (cylinder deactivation)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10159203-0001.pdf) - [Mazda Connect Infotainment Settlement, official settlement site (class definition: CX-5 2016-2020)](https://www.mazdainfotainmentsettlement.com/) - [ClassAction.org, 2021 Mazda valve stem seal oil consumption proposed class action](https://www.classaction.org/news/five-2021-mazda-vehicle-models-burn-excessive-oil-due-to-defect-class-action-says) - [CarCostCanada, 2019 CX-5 Signature Diesel road test (168 hp / 290 lb-ft)](https://carcostcanada.com/blog/2019-mazda-cx-5-signature-diesel-road-test/) - [Wikipedia, Mazda CX-5 second generation engine history](https://en.wikipedia.org/wiki/Mazda_CX-5) - [Mazda parts forum, PY8W-14-302 turbo oil filter and 5.1 qt fill confirmation](https://mazdas247.com/forum/threads/oil-filter-2-5l-turbo.123872068/) ## Other Mazda CX-5 generations - [2013-2016 Mazda CX-5 fluids](https://whichcarparts.com/cars/mazda/cx-5/2013-2016/fluids) Or [compare all generations](https://whichcarparts.com/cars/mazda/cx-5/fluids). ## More for the 2017-2025 Mazda CX-5 - [Oil & filter](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/oil) - [Battery](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/battery) - [Tires & wheels](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/tires) - [Wiper blades](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/filters) - [Bulbs](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/bulbs) - [Brakes](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/brakes) - [Service schedule](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/common-problems) - [Oil light reset](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/oil-reset) - [Key fob battery](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/key-fob-battery) - [Specs](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/specs) Specifications vary with engine option, production date, and market.