The 2019 Acura RDX uses 0W-20 synthetic motor oil.
In detail, Acura's owner’s manual specifies full-synthetic 0W-20 for all operating conditions. The engine's oil capacity is approximately 5.7 quarts with a filter change, and using a brand-name oil that meets API SN or higher is recommended for optimal protection and fuel efficiency. Always verify with your owner's manual or a dealer for your exact VIN, as oil capacity can vary slightly by trim or regional specification.
Oil specifications for the 2019 RDX
Key oil details you should know when servicing your RDX are listed below.
- Viscosity: 0W-20
- Oil type: Full synthetic
- Capacity: Approximately 5.7 quarts (including the oil filter)
- Standards: API SN or higher; ILSAC GF-5 or higher; Honda/Acura certification
- Change interval: Typically every 7,500 miles (12,000 km) under normal driving, or more frequently in severe service; follow the Maintenance Minder and owner's manual
Using the correct oil type and capacity helps ensure proper lubrication, fuel efficiency, and engine longevity. Always verify the exact specification in the owner's manual for your vehicle's trim and region.
Why 0W-20 and synthetic oil?
0W-20 provides strong cold-start protection and supports better fuel economy for the 2.0L turbocharged engine in the 2019 RDX. Synthetic oils offer superior stability and resistance to breakdown, which can translate to longer intervals between oil changes when aligned with Acura’s maintenance guidelines.
Summary: For a 2019 Acura RDX, use 0W-20 full-synthetic motor oil, about 5.7 quarts with a filter, and follow the Maintenance Minder with a typical interval around 7,500 miles under normal conditions. Use oils that meet API SN or higher and ILSAC GF-5 or higher, per OEM specifications.


