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The RDX offered an A-Spec trim featuring aggressive body modifications, metal paddle shifters, larger wheels, and an optional red leather interior with black Alcantara inserts. It introduced Acura’s True Touch Pad Interface infotainment system with a 10.2-inch widescreen HD display operated by a touchpad using absolute positioning. New features included an Active Damper system, 360-degree surround-view exterior cameras, panoramic glass moonroof, acoustic front door glass, head-up display, 4-way power lumbar front seats, and 16-way power front seats. Additionally, Acura introduced a limited-edition trim level called the PMC Edition for the 2021 model year. The 2019 RDX was powered by a 2.0-liter direct-injected turbocharged engine borrowed from the Honda Accord, producing 272 hp and 280 lb-ft of torque. Fuel efficiency ratings varied between front-wheel-drive and SH-AWD models. The transmission was a 10-speed automatic with wheel-mounted paddle shifters, allowing the RDX to maximize the turbocharged engine’s capabilities. The SH-AWD system was reintroduced, enabling torque vectoring with up to 100% torque applied to either rear wheel.

Look up Acura RDX specification, engine oil capacity, spark plug gap, safety rating, fuel consumption, transmission, and light bulb sizes.


  • Type: TC1/2

Engine 3.5L 6-Cylinder SOHC

  • Recommended Oil Viscosity: 0W-20
  • Oil certification: API
  • Oil capacity: 5.7 quarts

Spark Plug Gap

  • 3.5L 6-Cylinder: 0.044″


  • Capacity: 17.1 gal (64.7 L)


  • Type: Acura Long Life Antifreeze/Coolant Type2
  • Capacity:1.50 gal (5.69 L)

Brake Fluid

  • Type: Acura Heavy Duty Brake Fluid DOT 3

Automatic Transmission Fluid

  • Type: Acura Automatic Transmission Fluid ATF-type 2.0
  • Capacity: 
    • 2WD models:4.5 US (4.3 L)
    • AWD models: 5.1 US (4.8 L)

Rear Transmission Fluid

  • Type: Acura DPSF-II
  • Capacity: 1.76 qt (1.67 L)

Transfer Assembly Fluid

  • Type: Acura Hypoid Gear Oil HGO-1
  • Capacity: 0.61 qt (0.58 L)

Washer Fluid

  • Capacity: 
    • U.S.: 2.6 qt (2.5 L)
    • Canada: 5.8 qt (5.5 L)


  • Type: HFO-1234yf (R-1234yf)
  • Capacity:17.8 – 19.6 oz (505 – 555 g)



  •     2.0 L K20C4 (turbo)


  • 10-speed automatic

Fuel Consumption


Safety Rating

Front Lights

  • Daytime Running Light Bulb: LED
  • Door Mirror Illumination Light Bulb: LED
  • Front Fog 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: LED
  • Brake Light Bulb: LED
  • Center High Mount Stop Light Bulb: LED
  • License Plate Light Bulb: LED
  • Parking Light Bulb: LED
  • Rear Sidemarker Light Bulb: LED
  • Rear Turn Signal Light Bulb: 7507AST
  • Tail Light Bulb: LED

Interior Lights

  • Dome Light Bulb: LED
  • Glove Box Light Bulb: 74
  • Interior Door Light Bulb: 194
  • Luggage Compartment Light Bulb: LED
  • Map Light Bulb: LED
  • Vanity Mirror Light Bulb: 6615F