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The Chevrolet Impala from 2014 to 2021 represented a modern interpretation of a classic American sedan. It retained its full-size stature, offering spacious and comfortable seating for up to five passengers. The exterior design evolved to showcase a sleek and contemporary look, and the interior received substantial updates with higher-quality materials and advanced technology features. These Impalas came equipped with a range of amenities, including touchscreen infotainment systems, advanced safety features like forward collision warning and lane departure warning, and available leather upholstery for a more premium feel. While the focus remained on comfort and practicality, the Impala’s suspension tuning balanced a comfortable ride and decent handling. Although the market shifted towards SUVs and crossovers during this period, the Impala continued to appeal to buyers seeking a traditional, comfortable, and spacious sedan option. However, Chevrolet discontinued the Impala after the 2020 model year, marking this iconic nameplate’s end of an era.



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

Engine 2.5L 4-Cylinder DOHC

  • Recommended Oil Viscosity: 5W-20
  • Oil certification: DEXOS-1
  • Drain plug torque: 18 ft-lbs
  • Oil capacity: 5.0 quarts

Spark Plug Gap

  • 2.5L 4-Cylinder: 0.044”

Engine 3.6L 6-Cylinder DOHC

  • Recommended Oil Viscosity: 5W-30
  • Oil certification: DEXOS-1
  • Drain plug torque: 18 ft-lbs
  • Oil capacity: 6.0 quarts

Spark Plug Gap

  • 3.6L 6-Cylinder: 0.044”


  • Capacity: 
    • 2.5L L4 Engine :18.5 gal (70.0 L)
    • 3.6L V6 Engine 18.5 gal (70.0 L)


  • Capacity
    • 2.5L L4 Engine: 7.8 qt (7.4 L)
    • 3.6L V6 Engine: 9.9 qt (9.4 L)

Automatic Transmission

  • Type: DEXRON-VI Automatic Transmission Fluid.

Engine Coolant

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

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.

Hydraulic Brake System

  • Type: DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19353127).

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 equivalent.

Windshield Washer

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



  • 2.4 L LUK Ecotec I4 eAssist
  • 2.5 L LKW Ecotec I4
  • 3.6 L LFX V6


  • 6-speed 6T70 automatic
  • 6-speed 6T40 automatic (eAssist only)

Fuel Consumption


Safety Ratings



Front Lights

  • Daytime Running Light Bulb:
    • 9005SL+
    • LED
  • Front Sidemarker Light Bulb: 194
  • Front Turn Signal Light Bulb: 7444NAP
  • High Beam and Low Beam Headlight Bulb:
    • 9005SL+
    • HID-D3S

Rear Lights

  • Back Up Light Bulb: 7440
  • Brake Light Bulb: 7443LL
  • Center High Mount Stop Light Bulb: LED
  • Inner Tail Light Bulb: 194
  • License Plate Light Bulb: 2825L
  • Outer Tail Light Bulb: 7443LL
  • Parking Light Bulb: 7444NAP
  • Rear Sidemarker Light Bulb: 7443LL
  • Rear Turn Signal Light Bulb: 7443LL

Interior Lights

  • Glove Box Light Bulb: 175
  • Trunk Light Bulb: 175