Manual Transaxle Oil Replacement

Park the vehicle on level ground.
Remove the front under cover No. 2. (See FRONT UNDER COVER No. 2 REMOVAL/INSTALLATION .)
Remove the drain plug and gasket, and drain the manual transaxle oil.

Fig 1: Removing Drain Plug And Gasket
Courtesy of MAZDA MOTORS CORP.
Install a new gasket and the drain plug.
Tightening torque

39-59 N.m {4.0-6.0 kgf.m, 29-43 ft.lbf}
Remove the oil level plug and gasket.

Fig 2: Removing Oil Level Plug And Gasket
Courtesy of MAZDA MOTORS CORP.

Add the specified manual transaxle oil through the oil level plug port.

Manual transaxle oil grade	Manual transaxle oil viscosity	Manual transaxle oil capacity (approx. quantity)
API service GL-4	SAE 75W-80	SKYACTIV-G 2.0: 1.70 L {1.80 US qt, 1.50 Imp qt} SKYACTIV-G 2.5: 1.65 L {1.74 US qt, 1.45 Imp qt}

Install a new gasket and the oil level plug.
Tightening torque

39-59 N.m {4.0-6.0 kgf.m, 29-43 ft.lbf}
Install the front under cover No. 2. (See FRONT UNDER COVER No. 2 REMOVAL/INSTALLATION .)