Kia K5 2016-2020

The Kia K5, produced from 2016 to 2020, continued to evolve as a compelling option in the midsize sedan segment. It showcased a more refined and contemporary design language, featuring a wider grille, sleeker lines, and an overall more aerodynamic profile. The interior of the K5 was upgraded to offer a comfortable and modern driving experience, with a well-laid-out cockpit and an emphasis on quality materials. Technology played a prominent role in this generation, with options for touchscreen infotainment systems, smartphone integration, and available advanced driver assistance features such as blind-spot monitoring and automatic emergency braking.

In terms of performance, the K5 boasted improved handling and ride quality, making driving more enjoyable. It retained its reputation for reliability and affordability while enhancing its overall appeal by focusing on aesthetics, technology, and safety. The Kia K5 from this era was a significant step forward for the brand, and continued to compete effectively in the highly competitive midsize sedan market.

Kia K5 or Kia Optima specifications, engine oil capacity, spark plug gap, safety rating, fuel consumption, transmission, and light bulb sizes.

Engine 1.6L 4-Cylinder DOHC

• Recommended oil viscosity: 5W-30
• Oil certification: API
• Oil capacity: 4.8 quarts

Spark Plug Gap

• 1.6L 4-Cylinder : 0.032”

Engine 2.0L 4-Cylinder DOHC

• Recommended oil viscosity: 5W-30
• Oil certification: API
• Oil capacity: 5.1 quarts

Spark Plug Gap

• 2.0L 4-Cylinder : 0.036”

Engine 2.4L 4-Cylinder DOHC

• Recommended oil viscosity: 5W-20
• Oil certification: API
• Oil capacity: 5.1 quarts

Spark Plug Gap

• 2.4L 4-Cylinder : 0.044”

Fuel

• Capacity: 18.5 US gal. (70 l)

Automatic transaxle fluid

• Type: MICHANG ATF SP-IV, SK ATF SP-IV NOCA ATF SP-IV, Kia genuine ATF SP-IV
• Capacity:
  • 2.0 T-GDI: 7.8 l (8.24 US qt.)
  • 2.4 GDI: 7.1 l (7.50 US qt.)

Dual clutch transmission fluid

• Type: 
  • SAE 70W, API GL-4
  • HK SYN DCTF 70W (SK)
  • SPIRAX S6 GHME 70W DCTF (H.K.SHELL)
  • GS DCTF HD 70W (GS CALTEX)

Coolant

• Type: Mixture of antifreeze and water (Ethylene glycol base coolant for aluminum radiator)
• Capacity: 
  • 1.6 T-GDI: 7.50 US qt. (7.1 l)
  • 2.0 T-GDI:7.92 US qt. (7.5 l)
  • 2.4 GDI: 7.60 US qt. (7.2 l)

Brake Fluid

• Type: FMVSS116 DOT-3 or DOT-4
• Capacity: 0.47 US qt.(0.45 l)

Powertrain

Engine

• Gasoline:
  • 1.6 L Gamma II T-GDi I4
  • 2.0 L Nu MPi I4
  • 2.0 L Theta II T-GDi I4
  • 2.4 L Theta II GDi I4
• Gasoline hybrid:
  • 2.0 L Nu GDi HEV I4
• Gasoline/LPG:
  • 2.0 L Nu LPi I4
• Diesel:
  • 1.6 L U II CRDi I4
  • 1.7 L U II CRDi I4

Transmission

• 6-speed manual
• 6-speed automatic
• 7-speed DCT

Fuel Consumption

Safety Ratings

Front Lights

• Daytime Running Light Bulb: LED
• Front Fog Light Bulb: LED
• Front Sidemarker Light Bulb: 2825L
• Front Turn Signal Light Bulb: 2357NA
• High Beam Headlight Bulb:
  • 9005L+
  • LED
• Low Beam Headlight Bulb:
  • 9005L+
  • LED

Rear Lights

• Back Up Light Bulb: 921
• Brake Light Bulb:
  • 7528
  •  LED
• Center High Mount Stop Light Bulb: LED
• Inner Tail Light Bulb: 2825L
• License Plate Light Bulb: 2825
• Outer Tail Light Bulb: 7528
• Parking Light Bulb: LED
• Rear Sidemarker Light Bulb:
  • 2825L
  • LED
• Rear Turn Signal Light Bulb: 1156A
• Tail Light Bulb: LED

Interior Lights

• Dome Light Bulb: 6461
• Glove Box Light Bulb: 6418
• Map Light Bulb: 175
• Trunk Light Bulb: 6418
• Vanity Mirror Light Bulb: 6418