Which specification does Axle & differential oil need for the Subaru Impreza 2.0 WRX STi (2003–2005)?

Axle & differential oil for the Subaru Impreza 2.0 WRX STi (2003–2005): 75W-140, 75W-90, API GL4, API GL5.

Which specification does Brake fluid need for the Subaru Impreza 2.0 WRX STi (2003–2005)?

Brake fluid for the Subaru Impreza 2.0 WRX STi (2003–2005): DOT 3, FMVSS 116 DOT 3.

Which specification does Coolant & antifreeze need for the Subaru Impreza 2.0 WRX STi (2003–2005)?

Coolant & antifreeze for the Subaru Impreza 2.0 WRX STi (2003–2005): G11.

Which specification does Power steering fluid need for the Subaru Impreza 2.0 WRX STi (2003–2005)?

Power steering fluid for the Subaru Impreza 2.0 WRX STi (2003–2005): Allison TES 389, Caterpillar TO-2.

Suitable for Subaru Impreza 2.0 WRX STi (2003–2005)

For the Subaru Impreza 2.0 WRX STi (2003–2005), the manufacturer specifies motor oil 0W-30 (ACEA A5, ACEA B5, ACEA C3), 10W-30 (ACEA A3, ACEA B4, API SL), 10W-40 (ACEA A3, ACEA A3/B3, ACEA B3), 5W-30 (ACEA A1, ACEA A3, ACEA A5), or 5W-40 (ACEA A3, ACEA B4, API SP).

Fluids and approvals for the Subaru Impreza 2.0 WRX STi (2003–2005)

Fluid	Requirement
Motor oil	0W-30: ACEA A5, ACEA B5, ACEA C310W-30: ACEA A3, ACEA B4, API SL10W-40: ACEA A3, ACEA A3/B3, ACEA B35W-30: ACEA A1, ACEA A3, ACEA A55W-40: ACEA A3, ACEA B4, API SP
Axle & differential oil	75W-140, 75W-90, API GL4, API GL5
Brake fluid	DOT 3, FMVSS 116 DOT 3
Coolant & antifreeze	G11
Power steering fluid	Allison TES 389, Caterpillar TO-2