Which specification does Automatic transmission fluid (ATF) need for the Kia Optima 2.0 GDI HEV (2016–2018)?

Automatic transmission fluid (ATF) for the Kia Optima 2.0 GDI HEV (2016–2018): Dexron VI, JASO 1A.

Which specification does Brake fluid need for the Kia Optima 2.0 GDI HEV (2016–2018)?

Brake fluid for the Kia Optima 2.0 GDI HEV (2016–2018): DOT 3, FMVSS 116 DOT 3.

Which specification does Coolant & antifreeze need for the Kia Optima 2.0 GDI HEV (2016–2018)?

Coolant & antifreeze for the Kia Optima 2.0 GDI HEV (2016–2018): G12, G12+.

Suitable for Kia Optima 2.0 GDI HEV (2016–2018)

For the Kia Optima 2.0 GDI HEV (2016–2018), the manufacturer specifies motor oil 0W-30 (ACEA A5, ACEA B5, ACEA C3), 10W-30 (API SQ, ILSAC GF-7A), 5W-20 (ACEA C5, API SN, API SQ), 5W-30 (ACEA A3, ACEA A5, ACEA A5/B5), or 5W-40 (ACEA A3, ACEA B4, API SP).

Fluids and approvals for the Kia Optima 2.0 GDI HEV (2016–2018)

Fluid	Requirement
Motor oil	0W-30: ACEA A5, ACEA B5, ACEA C310W-30: API SQ, ILSAC GF-7A5W-20: ACEA C5, API SN, API SQ5W-30: ACEA A3, ACEA A5, ACEA A5/B55W-40: ACEA A3, ACEA B4, API SP
Automatic transmission fluid (ATF)	Dexron VI, JASO 1A
Brake fluid	DOT 3, FMVSS 116 DOT 3
Coolant & antifreeze	G12, G12+