Vehicle database
Acura RLX
UG / First generation (KC1/2) / 2015-2016 / Sedan / 4-door Sedan
North America / select global marketsNorth America / Japan / selected global marketsCoverage: expanded
Year and trim selector
Choose the exact year and trim to see engine, oil and service details.
2015 Acura RLX J35Y1/JNA1 (UX1)
UX1 / J35Y1, JNA1 / The 2015 Acura RLX was offered primarily with two powertrain options globally: a 3.5L V6 (J35Y1) and a hybrid variant with a 3.5L V6 (JNA1) paired with a three-motor hybrid system (Sport Hybrid SH-AWD).
GoldOpen details
Oil type: API SM or higher, SAE 0W-20 syntheticOil capacity: Approx. 5.4 liters (5.7 US qt) including filter (service-fill)Related: J35Y1 - V6 DOHC i-VTEC, JNA1 - Sport Hybrid engine code
2016 Acura RLX J35Y1/J35Y3 (KC1/2)
KC1/2 / J35Y1, J35Y3, J35Z1 / 3.5L V6 naturally aspirated engine for base models; 3.5L V6 with advanced VCM and hybrid system variant in Sport Hybrid SH-AWD models
GoldOpen details
Oil type: SAE 0W-20 API SN or higherOil capacity: Approximately 4.1 liters (4.3 US quarts), service fill including filter changeRelated: P0171 - System Too Lean, P0340 - Camshaft Position Sensor Circuit
Engine codes by year
| Year | Trim | Engine codes | Displacement | Fuel system |
|---|---|---|---|---|
| 2015 | technical-profile | J35Y1, JNA1 | 3.5 liters (3456 cc) | Programmed Fuel Injection (PFI) |
| 2016 | technical-profile | J35Y1, J35Y3, J35Z1 | 3,471 cc | Direct and multi-point fuel injection |
Oil capacity by engine
| Year | Engine codes | Oil type | Oil capacity | Fluid |
|---|---|---|---|---|
| 2015 | J35Y1, JNA1 | API SM or higher, SAE 0W-20 synthetic | Approx. 5.4 liters (5.7 US qt) including filter (service-fill) | Acura ATF-Z1 or equivalent for automatic |
| 2016 | J35Y1, J35Y3, J35Z1 | SAE 0W-20 API SN or higher | Approximately 4.1 liters (4.3 US quarts), service fill including filter change | Honda ATF DW-1 (automatic transmission fluid) |
Technical specifications
- Engines: J35Y1, JNA1, J35Y3, J35Z1
- Transmissions: Not available, 6-speed automatic (V6); Electronically Controlled Continuously Variable Transmission (e-CVT) for hybrid, Acura ATF-Z1 or equivalent for automatic, 6-speed automatic (base V6); 7-speed dual-clutch with hybrid motor integration in Sport Hybrid SH-AWD, Honda ATF DW-1 (automatic transmission fluid)
- Tire sizes: 245/45R18, 245/40R19 (front and rear)
- Bolt pattern: Verify by exact trim and wheel package
- Wheel torque: Verify by VIN and wheel package
- Battery: Verify by engine, market and equipment package
Fluids and service data
- Engine oil: API SM or higher, SAE 0W-20 synthetic / SAE 0W-20 API SN or higher
- Transmission fluid: Acura ATF-Z1 or equivalent for automatic / Honda ATF DW-1 (automatic transmission fluid)
- Coolant: Approx. 7.1 liters / Approximately 8.6 liters
- Brake fluid: DOT 3 or higher / DOT 3 or 4, as per owner’s manual
Known problems
- Hybrid battery degradation over time (hybrid models)
- Variable fuel economy due to SH-AWD system complexity
- Early electronic throttle issues in some units
- Battery health concerns in hybrid models