LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2018 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Quick Lookups >> Fluids
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Quick Lookups: Fluids

FLUID CAPACITIES
Fluid Type Application Standard Metric Fluid Spec Note S/H
Air Cond Refrigerant 1.31 LBS. 0.59 KG R-1234yf S
Automatic Transmission Fluid 2.0L Eng,Gas/Electric 6.34 QTS. 5.99 L MICHANG ATF SP-IV, SK ATF SP-IV, NOCA ATF SP-IV, KIA genuine ATF SP-IV or other brands meeting the GL-4 specification approved by Kia Motors Corp S
Brake Fluid 0.47 QTS. 0.44 L FMVSS116 DOT 3 or DOT 4 Brake Fluid S
Engine Coolant 2.0L Eng,Gas/Electric Engine Cooling System 7.12 QTS. 6.73 L 50/50 mixture of Ethylene Glycol Antifreeze and water S
Engine Coolant 2.0L Eng,Gas/Electric Inverter Coolant 3.30 QTS. 3.12 L 50/50 mixture of Ethylene Glycol Antifreeze and water S
Engine Oil 2.0L Eng,Gas/Electric 4.33 QTS. 4.09 L API SM or above, ILSAC GF-4 or above, ACEA-A5 or above, SAE 5W-20, 5W-30 If the ACEA A5 engine oil is not available in your country, you are able to use API SM or above, ILSAC Gf-4 or above, ACEA A3. S
Fuel Tank Plug-In Hybrid EX 14.52 GALS. 54.96 L S
Windshield Washer Fluid N/A N/A S