Which specification does Automatic transmission fluid (ATF) need for the Renault 20 L/TL/GTL (1975–1981)?

Automatic transmission fluid (ATF) for the Renault 20 L/TL/GTL (1975–1981): Allison TES 389, API GL5.

Which specification does Axle & differential oil need for the Renault 20 L/TL/GTL (1975–1981)?

Axle & differential oil for the Renault 20 L/TL/GTL (1975–1981): API GL4, DTFR 13B100.

Brake fluid for the Renault 20 L/TL/GTL (1975–1981): DOT 3, FMVSS 116 DOT 3.

Power steering fluid for the Renault 20 L/TL/GTL (1975–1981): Allison TES 389, Caterpillar TO-2.

For the Renault 20 L/TL/GTL (1975–1981), the manufacturer specifies motor oil 10W-30 (API SF) or 20W-50 (ACEA A3, ACEA B4, API SC).

Fluid	Requirement
Motor oil	10W-30: API SF20W-50: ACEA A3, ACEA B4, API SC
Automatic transmission fluid (ATF)	Allison TES 389, API GL5
Axle & differential oil	API GL4, DTFR 13B100
Brake fluid	DOT 3, FMVSS 116 DOT 3
Power steering fluid	Allison TES 389, Caterpillar TO-2