The 2021 Acura RDX AWD with the 2.0L turbo-4 gets 23 MPG combined, putting it in line with other compact luxury SUVs. In this category, performance, technology, and image are often more important than saving fuel. This isn’t trying to be a Prius competitor. Instead, it offers premium features and sporty driving, attracting buyers who accept average fuel consumption for the complete package.

City and highway performance

EPA estimates show the RDX AWD getting 21 MPG in the city and 27 MPG on the highway. The city number reflects stop-and-go traffic, where the turbocharger needs to build pressure, reducing fuel efficiency. But the highway number shows the engine’s efficiency at constant speeds. The 10-speed automatic transmission helps by maximizing the engine’s power. The transmission’s wide range of gear ratios allows for strong acceleration in lower gears and relaxed, fuel-efficient cruising in higher gears. Drivers who spend a lot of time in cities might find the city MPG disappointing, while those who often take highway road trips will appreciate the RDX AWD’s decent efficiency.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Acura RDX AWD at $2,500. This is based on driving 15,000 miles per year and assumes current national average fuel prices. This is just an estimate, and your actual fuel costs will change depending on your driving, the roads you drive on, and gas prices in your area. Driving aggressively, long commutes in traffic, and using premium fuel (though not required) can all increase your annual fuel expenses.

Real-world expectations

EPA estimates are standardized, but real-world fuel economy varies. Many drivers get close to the EPA’s combined rating, while others are slightly above or below, depending on how and where they drive. You can check RDX MPG across all years to see trends among owners.

How it compares

The 2021 Acura RDX AWD’s fuel economy is average for its class. A BMW X3 xDrive30i, also with a 2.0L turbo-4, gets 24 MPG combined, one MPG better than the RDX. A Lexus NX 300 AWD gets only 24 MPG combined. The Volvo XC60 T5 AWD also gets 23 MPG combined. These small differences might not decide a purchase, but they matter along with price, features, and driving. RDX buyers value luxury, performance, and Acura’s reputation for reliability, accepting average fuel economy as part of that. Those wanting maximum efficiency might consider hybrid alternatives but would lose some of the RDX’s sporty feel and conventional driving experience. Acura has more information and all Acura fuel economy data on their website.

Tips to maximize efficiency

Use the RDX’s drive mode selector. “Comfort” or “Normal” mode optimizes the engine and transmission for fuel efficiency, while “Sport” mode prioritizes performance, using more gas. Avoid quick acceleration and hard braking. Smooth driving helps maximize fuel economy, especially with a turbocharged engine that responds to throttle inputs.

Make sure your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check your tire pressure often and inflate them to the recommended level which you can find on a sticker inside the driver’s side doorjamb. Use cruise control on the highway to maintain a constant speed and reduce unnecessary acceleration and braking. This helps on long road trips.

Reduce the use of accessories that draw power from the engine, like air conditioning and heated seats. These features add comfort, but raise fuel consumption. Use them carefully, especially during short trips where the engine hasn’t warmed up. Remove unnecessary weight from the vehicle. Extra cargo adds weight, reducing fuel efficiency.

Follow scheduled maintenance, especially oil changes and air filter replacements. A well-maintained engine runs more efficiently. Regular oil changes ensure lubrication, and a clean air filter helps the engine breathe. Consider Acura’s scheduled maintenance program to stay on track.