Acura RLX (USA / CAN)

Differential fluid capacity & service interval

Acura RLX (USA / CAN) differential fluid capacity is 2,42 liters. Service intervals include 12000 km, 24000 km, 7500 miles, and 15000 miles. The data covers 6 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • RLX 3.5 i-VTEC V6 Hybrid (CAN) (2015-2020)
  • Rear
  • Use: Severe
  • Capacity 2,42 liter
  • Change 24000 km
  • Code: Twin Motor Unit
  • RLX 3.5 i-VTEC V6 Hybrid (CAN) (2015-2020)
  • Rear
  • Use: Severe, first change only
  • Capacity 2,42 liter
  • Change 12000 km
  • Code: Twin Motor Unit
  • RLX 3.5 i-VTEC V6 Hybrid (CAN) (2015-2020)
  • Rear
  • Use: Flexible (on board maintenance system)
  • Capacity 2,42 liter
  • Code: Twin Motor Unit
  • RLX 3.5 i-VTEC V6 Hybrid (USA) (2015-2020)
  • Rear
  • Use: Severe
  • Capacity 2,42 liter
  • Change 15000 miles
  • Code: Twin Motor Unit
  • RLX 3.5 i-VTEC V6 Hybrid (USA) (2015-2020)
  • Rear
  • Use: Severe, first change only
  • Capacity 2,42 liter
  • Change 7500 miles
  • Code: Twin Motor Unit
  • RLX 3.5 i-VTEC V6 Hybrid (USA) (2015-2020)
  • Rear
  • Use: Flexible (on board maintenance system)
  • Capacity 2,42 liter
  • Code: Twin Motor Unit

Additional Notes

  • The rear differential fluid capacity for the Acura RLX 3.5 i-VTEC V6 Hybrid is 2.42 liters across all listed service conditions and both the USA and CAN markets for 2015-2020.
  • Under severe use conditions, the Canadian-market specification calls for a rear differential fluid change interval of 24,000 km, while the US-market specification sets the equivalent interval at 15,000 miles.
  • A first-change-only interval is specified separately from the standard severe-use interval in both markets. For the CAN specification, the first change under severe use is due at 12,000 km, which is half the subsequent 24,000 km interval.
  • The US-market first-change-only interval under severe use is 7,500 miles, again representing half the standard severe-use interval of 15,000 miles. A shortened initial interval like this is common practice to remove break-in contaminants from a newly filled differential.
  • A flexible interval tied to the on-board maintenance system is listed for both the CAN and USA specifications, with no fixed mileage or kilometer value assigned. In flexible maintenance systems, the vehicle's computer determines the service point based on operating conditions rather than a fixed distance.
  • The 2.42-liter capacity figure remains consistent regardless of whether the interval is a first change, a recurring severe-use change, or a flexible system-triggered change, indicating a full drain-and-fill procedure in each case rather than a partial service.

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