Which specification does Manual gearbox & axle oil need for the Ford Mustang 3rd Gen Mustang 2.3L (1980–1981)?

Manual gearbox & axle oil for the Ford Mustang 3rd Gen Mustang 2.3L (1980–1981): API GL4, DTFR 13B100.

Which specification does Automatic transmission fluid (ATF) need for the Ford Mustang 3rd Gen Mustang 2.3L (1980–1981)?

Automatic transmission fluid (ATF) for the Ford Mustang 3rd Gen Mustang 2.3L (1980–1981): Ford ESP-M2C 166-H, Ford Mercon.

Which specification does Brake fluid need for the Ford Mustang 3rd Gen Mustang 2.3L (1980–1981)?

Brake fluid for the Ford Mustang 3rd Gen Mustang 2.3L (1980–1981): FMVSS 116 DOT 3, FMVSS 116 DOT 4.

Suitable for Ford Mustang 3rd Gen Mustang 2.3L (1980–1981)

For the Ford Mustang 3rd Gen Mustang 2.3L (1980–1981), the manufacturer specifies motor oil 10W-30 (ACEA A3, ACEA B4, API SF), 10W-40 (ACEA A3, ACEA B3, ACEA B4), 10W-60 (ACEA A3, ACEA B4, API SN), 15W-40 (ACEA A3/B4, ACEA E2, API SL), 20W-20 (API SJ), or 20W-50 (ACEA A3, ACEA A3/B4, ACEA B4).

Fluids and approvals for the Ford Mustang 3rd Gen Mustang 2.3L (1980–1981)

Fluid	Requirement
Motor oil	10W-30: ACEA A3, ACEA B4, API SF10W-40: ACEA A3, ACEA B3, ACEA B410W-60: ACEA A3, ACEA B4, API SN15W-40: ACEA A3/B4, ACEA E2, API SL20W-20: API SJ20W-50: ACEA A3, ACEA A3/B4, ACEA B4
Manual gearbox & axle oil	API GL4, DTFR 13B100
Automatic transmission fluid (ATF)	Ford ESP-M2C 166-H, Ford Mercon
Brake fluid	FMVSS 116 DOT 3, FMVSS 116 DOT 4