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Gearbox oil Mazda CX-30 6AX-EL — viscosity and OEM spec

Gearbox oil for Mazda CX-30 6AX-EL (2019–2024) — correct viscosity, OEM specification, fill volume and change interval.

Gearbox Specifications

ParameterValue
Make / ModelMazda CX-30
Gearbox typeautomatic
Gearbox code6AX-EL
Production Years2019–2024
Oil viscosityATF
OEM specificationM5 ATF
Fill volume6.8 L
Change interval40000

“Lifetime” fill in DSG and CVT gearboxes does not mean never change the oil — manufacturers recommend changing every 60,000 km to preserve gearbox life.

Approved Oils for 6AX-EL

Mazda M5 ATF / Liqui Moly ATF / Prestone ATF+4

Automatic Gearbox — Key Points

Automatic gearbox: A standard drain-and-fill replaces ~60% of the fluid. Full flush with a flush machine is recommended every 80,000–120,000 km.

FAQ

What oil goes in Mazda CX-30 6AX-EL?

Viscosity ATF, specification M5 ATF, volume 6.8 L. Suitable brands: Mazda M5 ATF / Liqui Moly ATF / Prestone ATF+4.

When should the gearbox oil be changed on Mazda CX-30?

Every 40000 km.

Can I use a universal ATF instead of M5 ATF?

No. The 6AX-EL requires strict compliance with M5 ATF. A universal ATF lacks the correct friction characteristics and will cause premature wear.