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The Buick Regal underwent a significant transformation in the 2009-2017 model years, evolving from a traditional American sedan into a more sophisticated and sporty midsize car. It adopted a European-inspired design, drawing cues from Opel (a GM subsidiary), and featured a stylish, contemporary exterior. The Regal offered a comfortable and upscale interior, focusing on quality materials and modern technology. This generation included a turbocharged variant for those seeking enhanced performance, elevating the Regal’s appeal to a broader range of buyers. Regarding handling and ride quality, the Regal displayed more agility and responsiveness than its predecessors. Buick’s emphasis on safety was evident with advanced features like stability control and a comprehensive set of airbags. The Regal positioned itself as a competitive option in the midsize sedan segment, successfully blending style, performance, and comfort, appealing to a broader demographic of drivers.



Buick Regal specifications, engine oil capacity, spark plug gap, safety rating, fuel consumption, transmission, and light bulb sizes.


  • FF Layout / F4 Layout
  • GM Epsilon II SWB / GMX350

2.4L DOHC I4 Engine (182hp, 172 lb-ft of torque)

  • Recommended Oil Viscosity: 5W-30
  • Oil Certification: API
  • Drain Plug Torque: 18 lb-ft (24 Nm)
  • Oil Capacity: 5.5 quarts (5.2 liters)

Spark Plug Gap

  • 0.043 inches (1.1mm)

2.0L DOHC I4 Turbocharged Ecotec Engine (270 hp, 295 lb-ft of torque)

  • Recommended Oil Viscosity: 5W-30
  • Oil Certification: API
  • Drain Plug Torque: 18 lb-ft (24 Nm)
  • Oil Capacity: 6 quarts (5.7 liters)

Spark Plug Gap

  • 0.028-0.031 inches (0.7-0.8mm)

Engine Coolant

  • Capacity: 7.6 liters (8.2 quarts) – 2.4L
  • Capacity: 8.6 liters (9.1 quarts) – 2.0L Turbocharged


  • Capacity: 18.6 gallons (70 liters)
  • Fuel Type: Unleaded gasoline

Windshield Washer Fluid

  • Capacity: 3.8 liters (1.0 gallon)

Brake Fluid

  • Type: DOT 3


  • 1.6 L LLU turbo I4 (China)
  • 2.0 L LTD I4 (China)
  • 2.0 L LDK/LHU/LTG turbo I4
  • 2.4 L LE5/LAF/LEA/LUK I4


  • 6-speed Hydra-Matic 6T40 automatic
  • 6-speed Hydra-Matic 6T50 automatic
  • 6-speed Hydra-Matic 6T70 automatic
  • 6-speed Aisin AF40 automatic
  • 6-speed Aisin F40 manual

Fuel Consumption

Safety Rating



  • High & Low Beam Light Bulb (w/ halogen headlights): 9012
  • High & Low Beam Light Bulb (w/ HID headlights): D3S
  • Turn Signal Light Bulb: 7440A
  • Side Marker Light Bulb: 194NA
  • Parking Light Bulb(w/ halogen headlights): 7443
  • Daytime Running Light Bulb(w/ halogen headlights): 7443
  • Parking Light Bulb(w/ HID headlights): LED
  • Daytime Running Light Bulb(with HID headlights): LED


  • Center High Mount Stop Light Bulb: LED
  • Brake Light Bulb: LED
  • License Plate Light Bulb: 194 / 7441
  • Tail Light Bulb: LED
  • Turn Signal Light Bulb Rear: 7440
  • Back-Up Reverse Light Bulb: 921
  • Side Marker Light Bulb Rear: LED


  • Trunk or Cargo Area Light: 194 / 7441
  • Dome Light Bulb: 98 / 2825
  • Map Light Bulb: 98
  • Interior Door Light Bulb: 6411 / 6428
  • Courtesy Light Bulb: 6411 / 6428