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2005–2013

The Cadillac STS, produced from 2005 to 2013, represented Cadillac’s bold foray into the luxury sedan market. As a successor to the Seville, the STS aimed to blend modern design, advanced technology, and driving performance. Its exterior design featured the brand’s distinctive angular lines and bold grille, giving it a contemporary and elegant appearance. The cabin showcased luxury, with premium materials, wood accents, and advanced features. The STS boasted Cadillac’s innovative Magnetic Ride Control, a suspension system that provided a smooth ride while maintaining impressive handling and control. In terms of technology, the STS was equipped with a range of cutting-edge features, including a touchscreen infotainment system, adaptive cruise control, and a heads-up display. Safety was a top priority, with features like stability control, antilock brakes, and side curtain airbags. The STS was available with various V6 and V8 engines, offering a range of power options to suit different driving preferences. Whether the standard model or the high-performance STS-V, this Cadillac sedan aimed to deliver a luxurious and dynamic driving experience, showcasing the brand’s commitment to innovation and performance in the luxury segment.

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

Engine 3.6L 6-Cylinder DOHC

  • Recommended oil viscosity: 5W-30
  • Oil certification: API
  • Drain plug torque: 18 ft-lbs
  • Oil capacity: 6.0 quarts

Spark Plug Gap

  • 3.6L 6-Cylinder: 0.040”

Coolant

  • Type: 50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant.

Hydraulic Brake System

  • Type: Delco Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid.

Windshield Washer Solvent

  • Type: GM Optikleen® Washer Solvent.

Parking Brake Cable Guides

  • Type: Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Power Steering System

  • Type: (GM Part No. U.S. 89021184, in Canada 89021186).

Automatic Transmission

  • Type: DEXRON®-III Automatic Transmission Fluid. Look for “Approved for the H-Specification” on the label.

Key Lock Cylinders

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

Rear Axle

  • Type:  SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 12378261, in Canada 10953455) meeting GM Specification 9986115.

Front Axle (All-Wheel Drive)

  • Type: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 12378261, in Canada 10953455) meeting GM Specification 9986115.

Transfer Case (All-Wheel Drive)

  • Type: DEXRON®-III Automatic Transmission Fluid. Look for “Approved for the H-Specifification”\ on the label.

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

  • Type: Lubriplate Lubricant Aerosol (GM Part No. U.S. 12346293, in Canada 992723) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Hood and Door Hinges

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

Weatherstrip Conditioning

  • Type: Dielectric Silicone Grease (GM Part No. U.S. 12345579, in Canada 992887).

Powertrain

Engine

  • 2.0 L LDK I4
  • 2.8 L LP1 V6
  • 3.0 L LF1 V6
  • 3.6 L LLT V6
  • 3.6 L LY7 V6 (gasoline)
  • 4.4 L Northstar LC3 V8 (supercharged gasoline)
  • 4.6 L Northstar LH2 V8 (gasoline)

Transmission

  • 5-speed 5L40-E automatic
  • 5-speed 5L50 automatic
  • 6-speed 6L45 automatic
  • 6-speed 6L50 automatic

Fuel Consumption

CADILLAC STS FUEL CONSUMPTION

Front Lights

  • Daytime Running Light Bulb:
    • 3757AK
    •  3157-SCK
  • Front Fog Light Bulb: H3-55W
  • Front Sidemarker Light Bulb: 194
  • Front Turn Signal Light Bulb:
    • 3757AK
    •  3157-SCK
  • High Beam Headlight Bulb: 9005LL
  • Low Beam Headlight Bulb:
    • H11LL
    • HID-D1S

Rear Lights

  • Back Up Light Bulb:
    • 3157-SCK
    • 3157KX
  • Brake Light Bulb: LED
  • Center High Mount Stop Light Bulb: PC175
  • License Plate Light Bulb: 2825
  • Parking Light Bulb:
    • 3757AK
    •  3157-SCK
  • Rear Sidemarker Light Bulb: 2825
  • Rear Turn Signal Light Bulb: LED
  • Tail Light Bulb: LED

Interior Lights

  • Courtesy Light Bulb: 906
  • Dome Light Bulb: 212-2
  • Map Light Bulb: PC175