Acura RLX Oil Capacities

Acura RLX

ACURA RLX KC1/2 2014-2020 Oil Capacities

Explore the crucial fluid capacities for the Acura RLX models between 2014 and 2020, ensuring optimum performance and longevity.

ComponentFluid TypeCapacity (L)Capacity (qt)Change Interval
3.5L petrol engine (J35Y4)0W20 Acura Motor Oil or equivalent4.34.5See Maintenance Minder Message (Symbol A or B)
Engine CoolantAcura Long Life Antifreeze/Coolant Type27.9 – 8.18.4 – 8.6See Maintenance Minder Message (Symbol 5)
Inverter coolant (Hybrid)Acura Long Life Antifreeze/Coolant Type21.31.4See Maintenance Minder Message (Symbol 5)
6-speed automatic transmissionAcura ATF DW-13.13.3See Maintenance Minder Message (Symbol 3)
10-speed automatic transmissionAcura ATF-type Maintenance Minder Message (Symbol 3)
7-Speed DCT transmission (Hybrid)Acura ATF DW-13.53.740000 km (25000 miles)
Twin Motor Unit (Hybrid)Acura ATF DW-12.52.624000 km (15000 miles)
Brake FluidAcura Heavy Duty Brake Fluid DOT 3N/AN/AEvery 3 years

Understanding Your Vehicle’s Fluids

Each fluid in your Acura RLX serves a crucial function:

  1. Engine Oil:
    • Lubricates the engine, reducing friction and heat.
    • Recommended Type: 0W20 Acura Motor Oil or equivalent.
    • Capacity: 4.3 L (4.5 qt).
  2. Engine Coolant:
    • Regulates engine temperature to prevent overheating.
    • Recommended Type: Acura Long-Life Antifreeze/Coolant Type2.
    • Capacity: 7.9 – 8.1 L (8.4 – 8.6 qt).
  3. Inverter Coolant (Hybrid models):
    • Cools the inverter, ensuring the hybrid system functions efficiently.
    • Recommended Type: Acura Long-Life Antifreeze/Coolant Type2.
    • Capacity: 1.3 L (1.4 qt).
  4. Transmission Fluid:
    • Lubricates the gears and facilitates smooth shifting.
    • Recommended Types: Acura ATF DW-1 for 6-speed automatic and 7-speed DCT hybrid transmissions; Acura ATF-type 2.0 for 10-speed automatic transmissions.
    • Capacities: 3.1 L (3.3 qt) for 6-speed automatic; 4.3 L (4.5 qt) for 10-speed automatic; 3.5 L (3.7 qt) for 7-speed DCT hybrid.
  5. Twin Motor Unit Fluid (Hybrid models):
    • Lubricates the twin motor unit, ensuring smooth operation.
    • Recommended Type: Acura ATF DW-1.
    • Capacity: 2.5 L (2.6 qt).
  6. Brake Fluid:
    • Transmits hydraulic force to the brakes, facilitating safe stopping.
    • Recommended Type: Acura Heavy Duty Brake Fluid DOT 3.
    • Change Interval: Every 3 years.

Maintaining Your Fluids

Follow the steps below to check and replace your vehicle’s fluids:

  1. Checking Fluid Levels:
    • Ensure the vehicle is on a level surface and has cooled down.
    • Use the dipstick or sight glass to check engine oil and transmission fluid levels.
    • For the coolant, ensure the level is between the “Min” and “Max” lines on the reservoir.
  2. Replacing Fluids:
    • Refer to your vehicle’s maintenance minder system and manufacturer’s guidelines for when to replace each fluid.
    • Ensure to use the recommended types of fluids to maintain the optimum performance and longevity of your Acura RLX.

Adhering to the recommended fluid capacities and change intervals is crucial for maintaining the performance and safety of your Acura RLX. This comprehensive guide aims to provide all the necessary information to ensure your vehicle remains in peak condition.


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