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Engine 5.3L 8-Cylinder

  • Recommended Oil Viscosity: 0W-20

  • Oil certification: API

  • Oil capacity: 8.0 quarts

Spark Plug Gap

  • 5.3L 8-Cylinder: 0.040''

Engine 6.2L 8-Cylinder

  • Recommended Oil Viscosity: 0W-20

  • Oil certification: API

  • Oil capacity: 8.0 quarts

Spark Plug Gap

  • 5.3L 8-Cylinder: 0.040''

Engine 3.0L 6-Cylinder

  • Recommended Oil Viscosity: 0W-20

  • Oil certification: API

  • Drain plug torque: 18 ft-lbs

  • Oil capacity: 7.0 quarts

Cooling System

  • Capacity: 

    • 5.3L V8 Engine:15.6 qt (14.8 L)

    • 6.2L V8 Engine:  15.1 qt (14.3 L)

Fuel Tank

  • Capacity

    • Short Wheelbase: 24.0 gal (90.8 L)

    • Long Wheelbase:28.0 gal (106.0 L)

Transfer Case Fluid

  • Capacity: 1.6 qt:(1.5 L)

Automatic Transmission

  • Type: DEXRON ULV Automatic Transmission Fluid

Chassis Lubrication

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

Coolant

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

Hydraulic Brake System

  • Type: DOT 4 Hydraulic Brake Fluid

Key Lock Cylinders, Hood Hinges, Body Door Hinge Pins, Power Assist Steps, Liftgate Hinge, and Fuel Door Hinge

  • Type: Multi-Purpose Lubricant, Superlube

Weatherstrip Conditioning

  • Type: Weatherstrip Lubricant

Windshield Washer

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

Powertrain


Engine

  • 5.3 L (325 cu in) L84 EcoTec3 V8

  • 6.2 L (378 cu in) L87 EcoTec3 V8 (Yukon Denali; Tahoe High Country)

  • 3.0 L Duramax I6 engine turbodiesel 

Transmission

  • 10-speed Hydra-Matic 10L80 automatic

Fuel Consumption


GMC YUKON 2021 FUEL CONSUMPTION

References


  1. 2021 GMC Yukon Owners Manual 

  2. GMC Yukon- Wikipedia.org

  3. US Department of Energy - FuelEconomy.gov

  4. NHTSA | National Highway Traffic Safety Administration - NHTSA.gov

Lights

Front Lights

  • Daytime Running Light Bulb: LED

  • Front Fog Light Bulb: 12278

  • Front Sidemarker Light Bulb: LED

  • Front Turn Signal Light Bulb: LED

  • High Beam Headlight Bulb: 9005LL

  • Low Beam Headlight Bulb:

    • H11LL

    • HID-D3S

Rear Lights

  • Back Up Light Bulb: 921

  • Brake Light Bulb: LED

  • Center High Mount Stop Light Bulb: LED

  • License Plate Light Bulb: 2825L

  • Parking Light Bulb: LED

  • Rear Sidemarker Light Bulb: LED

  • Rear Turn Signal Light Bulb: LED

  • Tail Light Bulb: LED

Interior Lights

  • Dome Light Bulb: LED

  • Luggage Compartment Light Bulb: LED

  • Map Light Bulb: LED

  • Vanity Mirror Light Bulb: 6612F