2018 Kia Optima Oil Capacity, Types, & Filters

Your essential guide to 2018 Kia Optima oil change is here! No more searching – find all the critical oil specs for your 2018 Kia Optima, including oil capacity, recommended oil viscosity (type), and the correct oil filter.

We cover all engine options, categorized by their specific engine codes, ensuring you get the right information for your specific configuration. Keep reading to discover everything you need for your next 2018 Kia Optima oil change!

Scroll Table ➜

Engine & Code	Oil Capacity	Oil Viscosity/Type	Oil Filter
1.6L 4-cylinder [1] 6 Turbo	4.8 quarts (with filter)	SAE 10W-30 (Above -18°C) SAE 15W-40 (Above -10°C) SAE 20W-50 (Above -8°C) SAE 5W-30, SAE 5W-40 (All TEMPS)	Kia 26300-35505
2.0L 4-cylinder [2] 7 Turbo	5.1 quarts (with filter)	SAE 10W-30 (Above -18°C) SAE 15W-40 (Above -10°C) SAE 20W-50 (Above -8°C) SAE 5W-30, SAE 5W-40 (All TEMPS)	Kia 26300-35505
2.0L 4-cylinder [C] W	4.3 quarts (with filter)	SAE 10W-30 (Above -18°C) SAE 5W-20, SAE 5W-30 (All TEMPS)	Kia 26300-35505
2.0L 4-cylinder [D] I	4.3 quarts (with filter)	SAE 10W-30 (Above -18°C) SAE 5W-20, SAE 5W-30 (All TEMPS)	Kia 26300-35505
2.0L 4-cylinder [E] K	4.3 quarts (with filter)	SAE 10W-30 (Above -18°C) SAE 5W-20, SAE 5W-30 (All TEMPS)	Kia 26300-35505
2.4L 4-cylinder [3] 3	5.1 quarts (with filter)	SAE 10W-30 (Above -18°C) SAE 5W-20, SAE 5W-30 (All TEMPS)	Kia 26300-35505

Select Your 2018 Kia Optima Engine Option

1.6L 4-cylinder Engine Code [1] 6 Turbo

Engine:

1.6L 4-cylinder [1] 6 Turbo [aka 1.6L L4 (Gas)]

Body & Trims:

EX, Hybrid EX, Hybrid Premium, LX, LX 1.6T, Plug-In Hybrid EX, S, SX

Oil Capacity:

4.8 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 15W-40 (Above -10°C)
SAE 20W-50 (Above -8°C)
SAE 5W-30, SAE 5W-40 (All TEMPS)

OEM Oil Filter:

Kia 26300-35505

Oil Filter Replaces:

26300-35056, 26300-35500, 26300-35501, 26300-35502, 26300-35503, 26300-35503N, 26300-35504, 26300-3E010, S2630-035505

2018 Kia Optima 1.6L 4-cylinder [1] 6 Turbo oil change details

Oil Grade:

Oil Capacity:

4.8 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 15W-40 (Above -10°C)
SAE 20W-50 (Above -8°C)
SAE 5W-30, SAE 5W-40 (All TEMPS)

Name of Oil Filter:

N/A

Wix Oil Filter:

51334-EA

Wix Air Filter:

N/A

Coolant Capacity:

7.5 quarts

Oil Drain Plug Torque:

25-33 ft/lbs (Oil Drain Plug). Install a new washer on the drain bolt and make sure to use an Original Equipment (OE) drain plug.

Notes:

N/A

2.0L 4-cylinder Engine Code [2] 7 Turbo

Engine:

2.0L 4-cylinder [2] 7 Turbo [aka 2.0L L4 (Electric/Gas)]

Body & Trims:

EX, Hybrid EX, Hybrid Premium, LX, LX 1.6T, Plug-In Hybrid EX, S, SX

Oil Capacity:

5.1 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 15W-40 (Above -10°C)
SAE 20W-50 (Above -8°C)
SAE 5W-30, SAE 5W-40 (All TEMPS)

OEM Oil Filter:

Kia 26300-35505

Oil Filter Replaces:

26300-35056, 26300-35500, 26300-35501, 26300-35502, 26300-35503, 26300-35503N, 26300-35504, 26300-3E010, S2630-035505

2018 Kia Optima 2.0L 4-cylinder [2] 7 Turbo oil change details

Oil Grade:

Oil Capacity:

5.1 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 15W-40 (Above -10°C)
SAE 20W-50 (Above -8°C)
SAE 5W-30, SAE 5W-40 (All TEMPS)

Name of Oil Filter:

N/A

Wix Oil Filter:

51334-EA

Wix Air Filter:

N/A

Coolant Capacity:

7.9 quarts

Oil Drain Plug Torque:

25-33 ft/lbs (Oil Drain Plug). Install a new washer on the drain bolt and make sure to use an Original Equipment (OE) drain plug.

Notes:

N/A

2.0L 4-cylinder Engine Code [C] W

Engine:

2.0L 4-cylinder [C] W [aka 2.0L L4 (Electric/Gas)]

Body & Trims:

EX, Hybrid EX, Hybrid Premium, LX, LX 1.6T, Plug-In Hybrid EX, S, SX

Oil Capacity:

4.3 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 5W-20, SAE 5W-30 (All TEMPS)

OEM Oil Filter:

Kia 26300-35505

Oil Filter Replaces:

26300-35056, 26300-35500, 26300-35501, 26300-35502, 26300-35503, 26300-35503N, 26300-35504, 26300-3E010, S2630-035505

2018 Kia Optima 2.0L 4-cylinder [C] W oil change details

Oil Grade:

Oil Capacity:

4.3 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 5W-20, SAE 5W-30 (All TEMPS) - For best fuel economy SAE 5W-20 is recommended.

Name of Oil Filter:

N/A

Wix Oil Filter:

51334-EA

Wix Air Filter:

49450-EA

Coolant Capacity:

7.1 quarts - This capacity is for the Engine.
3.3 quarts - This is the capacity of the Inverter.

Oil Drain Plug Torque:

25-33 ft/lbs (Oil Drain Plug). Install a new washer on the drain bolt and make sure to use an Original Equipment (OE) drain plug.

Notes:

N/A

2.0L 4-cylinder Engine Code [D] I

Engine:

2.0L 4-cylinder [D] I [aka 2.0L L4 (Electric/Gas)]

Body & Trims:

EX, Hybrid EX, Hybrid Premium, LX, LX 1.6T, Plug-In Hybrid EX, S, SX

Oil Capacity:

4.3 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 5W-20, SAE 5W-30 (All TEMPS)

OEM Oil Filter:

Kia 26300-35505

Oil Filter Replaces:

26300-35056, 26300-35500, 26300-35501, 26300-35502, 26300-35503, 26300-35503N, 26300-35504, 26300-3E010, S2630-035505

2018 Kia Optima 2.0L 4-cylinder [D] I oil change details

Oil Grade:

Oil Capacity:

4.3 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 5W-20, SAE 5W-30 (All TEMPS) - For best fuel economy SAE 5W-20 is recommended.

Name of Oil Filter:

N/A

Wix Oil Filter:

51334-EA

Wix Air Filter:

49450-EA

Coolant Capacity:

7.1 quarts - This capacity is for the Engine.
3.3 quarts - This is the capacity of the Inverter.

Oil Drain Plug Torque:

25-33 ft/lbs (Oil Drain Plug). Install a new washer on the drain bolt and make sure to use an Original Equipment (OE) drain plug.

Notes:

N/A

2.0L 4-cylinder Engine Code [E] K

Engine:

2.0L 4-cylinder [E] K [aka 2.0L L4 (Electric/Gas)]

Body & Trims:

EX, Hybrid EX, Hybrid Premium, LX, LX 1.6T, Plug-In Hybrid EX, S, SX

Oil Capacity:

4.3 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 5W-20, SAE 5W-30 (All TEMPS)

OEM Oil Filter:

Kia 26300-35505

Oil Filter Replaces:

26300-35056, 26300-35500, 26300-35501, 26300-35502, 26300-35503, 26300-35503N, 26300-35504, 26300-3E010, S2630-035505

2018 Kia Optima 2.0L 4-cylinder [E] K oil change details

Oil Grade:

Oil Capacity:

4.3 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 5W-20, SAE 5W-30 (All TEMPS) - SAE 5W-20 is the preferred oil.

Name of Oil Filter:

N/A

Wix Oil Filter:

51334-EA

Wix Air Filter:

49450-EA

Coolant Capacity:

3.3 quarts - This is the capacity of the Inverter.
7.1 quarts - This capacity is for the Engine.

Oil Drain Plug Torque:

25-33 ft/lbs (Oil Drain Plug). Install a new washer on the drain bolt and make sure to use an Original Equipment (OE) drain plug.

Notes:

N/A

2.4L 4-cylinder Engine Code [3] 3

Engine:

2.4L 4-cylinder [3] 3 [aka 2.4L L4 (Gas)]

Body & Trims:

EX, Hybrid EX, Hybrid Premium, LX, LX 1.6T, Plug-In Hybrid EX, S, SX

Oil Capacity:

5.1 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 5W-20, SAE 5W-30 (All TEMPS)

OEM Oil Filter:

Kia 26300-35505

Oil Filter Replaces:

26300-35056, 26300-35500, 26300-35501, 26300-35502, 26300-35503, 26300-35503N, 26300-35504, 26300-3E010, S2630-035505

2018 Kia Optima 2.4L 4-cylinder [3] 3 oil change details

Oil Grade:

Oil Capacity:

5.1 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.

Oil Viscosity/Type:

SAE 10W-30 (Above -18°C)
SAE 5W-20, SAE 5W-30 (All TEMPS) - For best fuel economy SAE 5W-20 is recommended.

Name of Oil Filter:

N/A

Wix Oil Filter:

51334-EA

Wix Air Filter:

N/A

Coolant Capacity:

7.6 quarts

Oil Drain Plug Torque:

25-33 ft/lbs (Oil Drain Plug). Install a new washer on the drain bolt and make sure to use an Original Equipment (OE) drain plug.

Notes:

N/A

Kia Optima – Engine Oil details by Year