Materials needed: Transmission oil of the required grade.
Support the vehicle so that it is level. Inspect the gearbox for leaks.
Unscrew the bolt to fill the gearbox with oil.
The oil level should be 10-15 mm below the edge of the filler hole. You can use a piece of wire as a dipstick to check.

Transmission oil specification: synthetic transmission oil with viscosity 75W90) (Mazda 121: High-pressure transmission oil with viscosity SAE 80) or transmission oil Ford-WSD-M2C200-B.
Filling volume: 2.8 l.
To fill, you need a special syringe or hose. Do not fill a lot of oil at once, because it spreads slowly.
Tighten the filler hole bolt to 25 Nm.
Lower the car.
