It seems we can’t find what you’re looking for. Perhaps searching can help.


The Cadillac CT6, produced from 2016 to 2020, represented Cadillac’s bold foray into the full-size luxury sedan segment. It featured a striking design with sharp lines, a prominent front grille, and distinctive LED lighting. The CT6 offered a spacious and upscale interior with luxurious materials, advanced technology, and a focus on passenger comfort. It came with various modern features, including an advanced infotainment system, a premium sound system, and an extensive list of driver assistance and safety technologies. Underpinning the CT6 was a lightweight and advanced chassis featuring rear or all-wheel drive configurations. This platform was engineered to balance comfort and sportiness, emphasizing smooth, composed handling. Although it faced competition from established rivals in the luxury sedan segment, the Cadillac CT6 aimed to stand out with its combination of innovative technology, dynamic driving characteristics, and a distinctive American luxury experience.

Cadillac CTS specification, engine oil capacity, spark plug gap, safety rating, fuel consumption, transmission, and light bulb sizes.

Engine 2.0L 4-Cylinder DOHC

  • Recommended oil viscosity: 5W-30
  • Oil certification: DEXOS-1
  • Oil capacity: 5.0 quarts

Spark Plug Gap

  • 2.0L 4-Cylinder: 0.036”

Engine 3.0L 6-Cylinder DOHC

  • Recommended oil viscosity: 5W-30
  • Oil certification: DEXOS-1
  • Oil capacity: 6.0 quarts

Spark Plug Gap

  • 3.0L 6-Cylinder: 0.031″

Engine 3.6L 6-Cylinder DOHC

  • Recommended oil viscosity: 0W-30
  • Oil certification: DEXOS-1
  • Oil capacity: 6.5 quarts

Spark Plug Gap

  • 3.6L 6-Cylinder:0.035”

Hydraulic Brake System

  • Type: DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818, in Canada 19299819)

Windshield Washer

  • Type: Automotive windshield washer fluid that meets regional freeze protection requirements.

Automatic Transmission (w/3.6L LF3 Twin Turbo Engine)

  • Type: ATF-WS Automatic Transmission Fluid (GM Part No. 88863400, in Canada 88863401)

Automatic Transmission (Except w/ 3.6L LF3 Twin Turbo Engine)

  • Type: DEXRON ® -HP Automatic Transmission Fluid (GM Part No. 19300536, in Canada 19300537)

Transfer Case (All-Wheel Drive)

  • Type: Transfer Case Fluid (GM Part No. 88861950, in Canada 88861951)
  • Capacity: 0.8qt (0.8L)

Rear Axle (Non-Limited Slip Differential)

  • Type: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090) meeting GM Specification 9986285

Rear Axle (Limited-Slip Differential)

  • Type: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624, in Canada 88862625) meeting GM Specification 9986290.
  • Capacity:  1.3 qt (1.2 L)

Rear Axle/Front Axle (All-Wheel Drive)

  • Type: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090) meeting GM Specification 9986285.

Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl

  • Type: Lubriplate Lubricant Aerosol (GM Part No. 89021668, in Canada 89021674) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Electronic Limited Slip Differential (eLSD) Clutch System Lubricant (CTS-V and V-Sport Only)

  • Type: DEXRON®-VI Automatic Transmission Fluid.

Key Lock Cylinders, Hood and Door Hinges

  • Type: Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474).

Weatherstrip Conditioning

  • Type: Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481).

Cooling System– Engine

  • Type: 0/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant.
  • Capacity
    • 2.0L L4 Engine: 9.3 qt (8.8 L)



  • 2.0L LSY I4 (turbo gasoline)
  • 2.0L LTG I4 (turbo gasoline)
  • 2.0 L LNF I4 (turbo gasoline PHEV)
  • 3.6L LGX V6 (gasoline)
  • 3.0L LGW V6 (twin-turbo gasoline)
  • 4.2L LTA V8 (twin-turbo gasoline)


  • 8-speed Hydra-Matic 8L45 automatic
  • 8-speed Hydra-Matic 8L90 automatic
  • 10-speed Hydra-Matic 10L90 automatic
  • electronic CVT (CT6 PHEV)

Fuel Consumption

Cadillac CTS Fuel Comparison

Front Lights

  • Daytime Running Light Bulb: LED
  • Front Sidemarker Light Bulb: LED
  • Front Turn Signal Light Bulb: LED
  • High Beam Headlight Bulb: LED
  • Low Beam Headlight Bulb: LED

Rear Lights

  • Back-Up Light Bulb: 921
  • Brake Light Bulb: LED
  • Center High Mount Stop Light Bulb: LED
  • License Plate Light Bulb: LED
  • Rear Sidemarker Light Bulb: LED
  • Rear Turn Signal Light Bulb: LED
  • Tail Light Bulb: LED

Interior Lights

  • Trunk Light Bulb: 175
  • Vanity Mirror Light Bulb: 6612F