Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2019 RLX Sport Hybrid.
The 2019 Acura RLX Sport Hybrid is categorized as a SUV and runs an Automatic (S10) transmission paired with a hybrid powertrain that requires 4.5 quarts of 0W-20 oil to deliver EPA ratings of 20 mpg city, 29 mpg highway, and 23 mpg combined. Looking across the 2014–2019 generation—a span where complaint volume peaked at three in 2018 and bottomed out at one in 2014—this model year generated eight total owner complaints. Two recalls apply to this year, with the Fuel/Propulsion System standing out as the primary complaint category.
Fluid capacities, tune-up values and fuel economy at a glance.
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses a BCI 24F · 550 CCA battery. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S10) |
| EPA city / highway / combined | 20 / 29 / 23 mpg |
| Drivetrain | Front-Wheel Drive |
| Passenger volume | 102 cu ft |
| Cargo volume | 15 cu ft |
| Recommended fuel | Premium Gasoline |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 4.5 qt of 0W-20 engine oil, Dot 3 brake fluid. Torque lug nuts to 94 ft-lbs. The firing order is 1-4-2-5-3-6.
| Automatic Transmission Fluid | DW-1 |
| Automatic Transmission Fluid Capacity | 3.7 qt |
| Automatic Transmission Fluid | Acura Type 2.0 |
| Automatic Transmission Fluid Capacity | 4.5 qt |
| Brake Fluid | Dot 3 |
| Engine Coolant | Honda Type 2 antifreeze/coolant |
| Engine Coolant Capacity | 8.5 |
| Engine Coolant | Honda Type 2 antifreeze/coolant |
| Crankshaft Position (CKP) Sensor Bolt(s) | 9.0 ft-lbs |
| Camshaft Position (CMP) Sensor Bolt(s) | 3.0 ft-lbs |
| Camshaft Sprocket and/or Gear Bolt(s) | 68.0 ft-lbs |
| Engine Coolant Temperature (ECT) Sensor Bolt(s) | 9.0 ft-lbs |
| Oxygen (O2S) Sensor Bolt(s) | 33.0 ft-lbs |
| Knock Sense (KS) Bolt(s) | 16.0 ft-lbs |
| Flex or Driveplate Bolts | 87.0 ft-lbs |
| Exhaust Manifold to Cylinder Head Bolts | 24 ft-lbs |
| Differential Fill Plug | 35.0 ft-lbs |
| Differential drain Plug | 35.0 ft-lbs |
| Driveshaft Flange to Transmission | 29.0 ft-lbs |
| Lug Nuts | 94 ft-lbs |
| Steering Track (Rod End) Bolts | 44.0 ft-lbs |
| Automatic Transmission Drain Plug | 36.0 ft-lbs |
| Front Wheel Hub | 242.0 Use new nut. ft-lbs |
| Rear Wheel Hub | 181.0 Do not re-use old hub nut ft-lbs |
| Cylinder Firing Order | 1-4-2-5-3-6 |
| Curb Idle Speed (No Load) | 680 rpm |
| Curb Idle Speed Variance (No Load) | 50 rpm |
| Curb Idle Speed (No Load) | 950 rpm |
| Curb Idle Speed Variance (No Load) | 50 rpm |
| Spark Plug Manufacturer | Acura |
| Spark Plug Gap | .039-.043 in |
| Spark Plug Torque | 16 ft-lbs |
| Refrigerant | R134a |
| Refrigerant Capacity | 0.96-1.07 lbs |
| Oil Type | ND-11 |
| Oil Capacity | 4.75 oz |
| Standard BCI Group Number | 24F |
| Standard BCI Cranking Performance | 550 cca |
| Standard BCI Group Number | 24F |
| Standard BCI Cranking Performance | 550 cca |
| Fuel Pump Pressure Minimum | 60.0 |
| Fuel Pump Pressure Maximum | 68.0 |
| Regulated Fuel System Pressure (With Vacuum) | 60.0 |
| Engine Compression | 135 Minimum PSI. 29 Maximum Variation PSI. |
| Engine Oil Pressure | 10.1 |
| Intake Valve Lash | 0.00350 in |
| Exhaust Valve Lash | 0.00350 in |
| Brake Caliper Bolt to Carrier Torque | Front: 53; Rear: 26 |
| Brake Caliper Carrier to Hub Bolt Torque | Front: 101; Rear: 80 |
| ABS Sensor Torque | Front: 6.6; Rear: 6.6 |
| Minimum Pad Thickness | Front: 0.063; Rear: 0.063 in |
| Vented Rotor Minimum Thickness for Replacement | Front: .906; Rear: .315 |
| Variation from Parallelism Thickness Variation | .0006 |
| Maximum Rotor Runout | .0016 |
| Vented Rotor Minimum Thickness for Replacement | Front: 1.024; Rear: .315 |
| 1 | 15 ft. lbs., Step 2: 90° | 15 ft. lbs |
| 1 | 48 ft. lbs., Step 2: 60 | 48 ft. lbs |
| 1 | 22 ft. lbs., Step 2: Turn 90°, Step 3: Turn 90°, Step 4: When using new bolts turn 90°. | 22 ft. lbs |
| 1 | 22 ft. lbs., Step 2: Turn 90°, Step 3: Turn 90°, Step 4: When using new bolts turn 90°. | 22 ft. lbs |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
In the context of the RLX Sport Hybrid's federal record, the 2019 model year shows zero complaints in the year-by-year data, alongside two recalls, two investigations, and 14 technical service bulletins (TSBs). Across the generation, complaints rose from one in 2014 to three in 2018 before dropping to zero in 2019, while TSBs steadily declined from a high of 63 in 2014 to just 14 in 2019, indicating that Acura resolved many early production bugs over the lifecycle. Recalls fluctuated throughout the generation, starting at two in 2014, dropping to zero for 2016 and 2018, and returning to two in 2019, though the data does not specify the root cause of these recalls. While the year-by-year record lists zero complaints for 2019, a specific breakdown for the target year identifies five complaints centered on the Fuel/Propulsion System (2), Fuel System/Gasoline (1), Power Train (1), and Visibility/Wiper (1), with zero crash or fire complaints. Because the 2019 model benefits from the lowest TSB count of the generation and a sharp drop in complaints compared to 2018, it represents a solid, late-generation purchase, provided you verify the two outstanding recalls have been properly addressed.
All 8 complaints on record, top 7 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 2 campaigns on record for this vehicle.
Honda (American Honda Motor Co.) is recalling certain 2014-2019 Acura MDX and 2017-2019 Acura MDX Sport Hybrid vehicles. Moisture may enter the tailgate lid lights, possibly causing a loss of the tailgate lid lights and… Remedy: Acura will notify owners, and dealers will modify the tailgate lid lights and install updated gaskets and a wiring sub-harness or will replace both tailgate lid lights. The…
Honda (American Honda Motor Co.) is recalling certain 2019-2020 Acura MDX, MDX Sport Hybrid, RDX, TLX, Honda Accord, Civic Hatchback, Insight, 2019 Acura ILX, Honda Accord Hybrid, Civic Coupe, Civic Coupe Si, Civic… Remedy: Honda will notify owners, and dealers will replace the fuel pump assembly, free of charge. Owner letters were mailed May 18, 2021. Owners may contact Honda customer service at…
Showing 5 of 22 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| B25-003 | 2025-09-03 | Visibility/Wiper | Service Bulletin - An uneven sealing surface allows moisture to enter the inner… |
| B25-003 | 2025-07-09 | Visibility/Wiper | Service Bulletin - An uneven sealing surface allows moisture to enter the inner… |
| ONL6L806042025 Form | 2025-06-04 | Exterior Lighting | Owner Notification Letter - An uneven sealing surface allows moisture to enter the inner… |
| ONL6L806042025 Letter | 2025-06-04 | Exterior Lighting | Owner Notification Letter - An uneven sealing surface allows moisture to enter the inner… |
| B25-003 | 2025-04-18 | Visibility/Wiper | Service Bulletin - An uneven sealing surface allows moisture to enter the inner… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.
Cross-vehicle references for the kinds of data on this page.
4.5 qt of 0W-20, per the factory manual.
NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 20 city / 29 highway / 23 combined mpg.