23 MPG combined is the fuel economy for the 2023 Infiniti Q50 with its 3.0L twin-turbo V6. This isn’t going to win any awards for great gas mileage, but it reflects the car’s purpose: a nice mix of performance and luxury. It’s a sport sedan and not a hybrid built for efficiency, designed to provide a fun driving experience, so that compromise works for its target buyer. These buyers like a powerful engine and sharp handling more than saving every last bit of fuel. They like the Q50’s styling and refined interior, and accept the gas consumption as part of the deal.

City and highway performance

The EPA estimates for the 2023 Infiniti Q50 3.0L show different city and highway fuel economy numbers. The city rating is 20 MPG, due to the stop-and-go driving and lower speeds in city conditions. This number is less impressive because the engine has to work harder to accelerate and navigate busy streets. However, the highway number jumps to 29 MPG. This shows how well the engine does at cruising speeds, and its ability to easily cover long distances. The seven-speed automatic transmission helps here, keeping the engine at the right RPM for highway efficiency, for a more relaxed and economical driving experience on longer trips. Drivers who spend a lot of time on the highway will likely see better overall fuel economy than those mostly driving in the city, though the combined 23 MPG offers a good middle ground for mixed driving.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Infiniti Q50 3.0L at $2,500. This is based on driving 15,000 miles per year, with a set amount of those miles in city versus highway conditions. The EPA also factors in a national average fuel price. Your real fuel costs will change based on how you drive, the type of fuel you buy, and where you live, since fuel prices change from place to place. Still, the $2,500 gives you a benchmark to understand the Q50’s running costs compared to other cars. Buyers should think about this number, especially those watching their budget who will weigh the performance versus fuel costs more carefully. Reviewing all Infiniti fuel economy data shows where the Q50 is within the brand’s group.

Real-world expectations

The EPA provides an estimate, but real-world fuel economy can change due to different things. Your driving, traffic, and even the weather can affect your MPG. Driving fast, braking hard, and idling for a long time will all lower fuel economy, while driving smoothly will improve it. Colder temperatures can also hurt fuel efficiency, especially on shorter trips, as the engine takes longer to warm up. Expect to see numbers lower than the EPA estimates if you often drive fast or spend a lot of time in traffic. If you mostly drive on the highway at a constant speed, you could match or do better than the EPA’s 29 MPG highway rating.

The Q50’s driver-selectable modes can subtly change throttle response and shift patterns, offering some control over gas consumption. Owners who want to maximize their MPG may also want to watch their fuel consumption over time, to spot patterns and change their driving. Checking Q50 MPG across all years can provide more context.

How it compares

The 2023 Infiniti Q50’s fuel economy puts it with other sporty, entry-level luxury sedans. The BMW 330i, gets a combined 28 MPG, better gas mileage thanks to its turbocharged four-cylinder engine. However, that engine doesn’t drive the same as the Q50’s V6, which some buyers may not like as much. The Mercedes-Benz C300, another popular choice, gets about 25 MPG combined. The Acura TLX with its base engine gets around 25 MPG combined, balancing luxury and efficiency. While those cars get better MPG, an important thing for Q50 buyers is the V6 engine’s strong power, especially in Red Sport trim levels. Shoppers who want maximum fuel savings might avoid the Q50, while those who want a more powerful engine will find the Q50’s trade-off acceptable. The Genesis G70 2.0T gets around 24 MPG combined, showing how competitive this class is. These numbers show that the Q50 balances sporty performance with acceptable, but not amazing, fuel efficiency.

Tips to Maximize Efficiency

Avoid fast acceleration and braking. The Q50’s powerful twin-turbo engine is tempting to use, but frequent bursts of speed will hurt your fuel economy. Keep a steady throttle and watch traffic to reduce unnecessary acceleration and deceleration. Smooth, controlled driving helps with maximizing fuel efficiency, especially in a car with the Q50’s capabilities.

Make sure your tires are inflated. Underinflated tires increase rolling resistance, making the engine work harder and use more fuel. 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 or in your owner’s manual. This easy thing can have a real impact on fuel economy.

Reduce extra weight in the car. Extra stuff adds weight, which reduces fuel efficiency. Remove anything you don’t need from the trunk and back seat. This matters more for city driving, where the engine has to constantly accelerate the car.

Minimize idling. Idling burns fuel without going anywhere, so avoid idling when you can. If you expect to stop for more than a minute or two, turn off the engine. Restarting the engine uses less fuel than letting it idle for long. This is true when waiting in parking lots or drive-throughs.