23 MPG combined from the 2020 Acura RDX AWD with its 2.0L turbocharged engine might not sound groundbreaking, but Acura designed this car to deliver a rewarding driving experience first, and decent fuel economy second. It’s a vehicle for someone who appreciates a responsive throttle, a well-tuned chassis, and the assurance of all-wheel drive, even if it means sacrificing a few miles per gallon compared to its more efficiency-focused competitors.

City and highway performance

The EPA estimates suggest 21 MPG in the city and 27 MPG on the highway. These figures paint a picture of a vehicle better suited to open roads than stop-and-go urban driving. The 2.0L turbocharged four-cylinder, paired with a 10-speed automatic transmission (S10), works reasonably well in highway cruising, where it can settle into a comfortable and relatively efficient rhythm. However, the city rating reflects the engine’s tendency to dip into the turbocharger’s boost more frequently, consuming more fuel. The all-wheel-drive system, while providing added traction and stability, also contributes to the lower city MPG. Overall, the RDX prioritizes spirited performance over maximizing urban fuel efficiency, a trade-off many owners willingly accept.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Acura RDX AWD at $2,500. This figure is based on driving 15,000 miles per year, using fuel prices at the national average. While this is a useful benchmark, remember that your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. Consider it a general guideline rather than a precise prediction of your expenses.

Real-world expectations

While the EPA numbers provide a standardized comparison, it’s important to have realistic expectations. In mixed driving, expect somewhere between 22 and 25 MPG. Aggressive driving, frequent short trips, and heavy use of the air conditioning will push fuel economy towards the lower end of that range. Conversely, careful driving on the highway, using cruise control, and avoiding excessive acceleration, may allow you to approach, or even slightly exceed, the EPA’s 27 MPG highway estimate. These fluctuations are standard for any turbocharged engine, where fuel consumption is highly dependent on driving style.

How it compares

The RDX’s fuel economy lands it in the middle of its class. The Lexus NX 300 AWD achieves a slightly better 24 MPG combined. The BMW X3 xDrive30i returns similar figures, around 23 MPG combined, and is another popular choice. The Volvo XC60 T5 AWD manages around 25 MPG combined. These small differences can be significant over the long term, but for many RDX buyers, the Acura’s sharper handling and engaging driving dynamics outweigh the modest fuel economy impact. Potential buyers should also consider the Infiniti QX50, which has a technologically advanced VC-Turbo engine that is rated at 25 MPG combined. For a broader picture of all Acura fuel economy data, consult our other resources. And consider RDX MPG across all years if you are interested in different model years.

Tips to maximize efficiency

The RDX’s turbocharged engine responds significantly to driving style. Avoid excessive acceleration and hard braking. A smooth, steady approach to driving will yield improvements in fuel economy.

Proper tire inflation is critical. Check your tire pressures regularly and ensure they are inflated to the recommended levels found on the sticker inside the driver’s side door jamb. Underinflated tires increase rolling resistance, leading to reduced fuel efficiency.

Consider using the Acura’s drive mode selector. The “Comfort” mode generally provides the best fuel economy by optimizing throttle response and transmission shift points for efficiency. Avoid “Sport” mode unless you specifically need the increased responsiveness, and avoid using the paddle shifters unless necessary.

Reduce unnecessary weight. Carrying extra cargo in the vehicle increases the load on the engine, resulting in lower fuel economy. Remove any unnecessary items from the trunk and rear seats that are not needed for your daily driving.

Keep up with maintenance. Regular oil changes, air filter replacements, and spark plug service ensure that the engine is running efficiently. A poorly maintained engine will consume more fuel than one in good condition.