Which specification does Manual gearbox & axle oil need for the BMW R 1150 GS (1998–2003)?

Manual gearbox & axle oil for the BMW R 1150 GS (1998–2003): 75W-140, API GL5.

Which specification does Gear oil need for the BMW R 1150 GS (1998–2003)?

Gear oil for the BMW R 1150 GS (1998–2003): 75W-90, API GL5, MIL-L 2105 C.

Which specification does Brake fluid need for the BMW R 1150 GS (1998–2003)?

Brake fluid for the BMW R 1150 GS (1998–2003): BMW QV 34 001, FMVSS 116 DOT 3.

Suitable for BMW R 1150 GS (1998–2003)

For the BMW R 1150 GS (1998–2003), the manufacturer specifies motor oil 10W-30 (API SP, JASO MA2), 10W-40 (API SL, API SN, API SN PLUS), 10W-50 (API SP, JASO MA2), 15W-50 (API SP, JASO MA2), or 5W-40 (API SN PLUS, API SP, JASO MA2).

Fluids and approvals for the BMW R 1150 GS (1998–2003)

Fluid	Requirement
Motor oil	10W-30: API SP, JASO MA210W-40: API SL, API SN, API SN PLUS10W-50: API SP, JASO MA215W-50: API SP, JASO MA25W-40: API SN PLUS, API SP, JASO MA2
Manual gearbox & axle oil	75W-140, API GL5
Gear oil	75W-90, API GL5, MIL-L 2105 C
Brake fluid	BMW QV 34 001, FMVSS 116 DOT 3