Infiniti · 2020
Q50 Red Sport 3.0L 6-cyl
✓ EPA Verified
Premium Gasoline
Midsize Cars
Rear-Wheel Drive
City
20
MPG
Combined
22
MPG
Highway
26
MPG
Annual Fuel Cost
$2,650
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$500
more per year
Class Comparison — Midsize Cars
Bottom 17%
Better than 17 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 22 MPG
This vehicle
22 MPG
Class average
35 MPG
Class lowest
13 MPG
EPA Energy & Environment Scores
4
Energy Score
Out of 10
4
GHG Score
Out of 10
404 lbs
Annual CO₂
g/mile tailpipe CO₂
No
Start-Stop
Not equipped
Vehicle Specifications
Engine3.0L 6-cyl
TransmissionAutomatic (S7)
DriveRear-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassMidsize Cars
Engine DescSIDI
Start-StopNo
EPA Vehicle ID42067

22 MPG combined isn’t going to win any fuel economy awards, and it’s certainly not the main reason someone buys a 2020 Infiniti Q50 Red Sport 3.0L. This car exists for a specific type of driver: someone who wants a potent, responsive engine wrapped in a stylish, comfortable, and relatively discreet package. Fuel efficiency is a secondary concern, falling far behind the desire for exhilarating performance and confident handling.

City and highway performance

The EPA estimates provide a breakdown of 20 MPG in the city and 26 MPG on the highway. In urban environments, the Q50 Red Sport’s turbo lag can occasionally become noticeable. This impacts fuel consumption as the engine works harder to deliver quick bursts of acceleration, and stop-and-go traffic makes this worse. Highway cruising, on the other hand, allows the engine to settle into a more efficient rhythm. The seven-speed automatic transmission does an admirable job of keeping the engine in its sweet spot, contributing to the more favorable highway MPG, but remember that the temptation to unleash the 400 horsepower can quickly diminish those gains.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Infiniti Q50 Red Sport 3.0L at $2,650. This figure is calculated based on driving 15,000 miles per year, assuming a national average fuel price. Keep in mind that this is merely an estimate; individual driving habits, local fuel prices, and even seasonal temperature variations can all influence your actual fuel costs. Aggressive driving, prolonged idling, and using premium fuel (which is recommended for optimal performance) will all push that number higher. The $2,650 figure serves as a useful benchmark, but it’s crucial to understand the factors that can cause real-world expenses to diverge.

Real-world expectations

While the EPA estimates offer a standardized comparison point, drivers of the Q50 Red Sport often report figures slightly below the official numbers. Achieving the stated 20 MPG in the city requires a conscious effort to drive conservatively. Hitting the 26 MPG highway figure requires maintaining a steady speed and avoiding frequent bursts of acceleration. Expect to see combined fuel economy closer to 19-21 MPG in mixed driving conditions. Drivers who prioritize performance and frequently use the engine’s power will likely see even lower numbers; the Q50 Red Sport rewards spirited driving, but that comes at the expense of fuel efficiency.

How it compares

The Q50 Red Sport inhabits a competitive segment, and its fuel economy places it squarely in the middle of the pack. The BMW 340i, with its turbocharged inline-six, achieves a slightly better 25 MPG combined. The Mercedes-Benz C43 AMG, while offering similar performance, lands in roughly the same ballpark as the Q50 Red Sport. The Lexus IS 350, with its naturally aspirated V6, offers a marginally better 23 MPG combined, but sacrifices some of the Q50’s raw power. For buyers considering all Infiniti fuel economy data, the Q50 Red Sport sits near the bottom, prioritizing performance over frugality. Those seeking better efficiency within the Infiniti family might consider the Q50 2.0t; it delivers superior fuel economy at the expense of outright performance. Browse Q50 MPG across all years to assess historical trends.

Tips to maximize efficiency

Resist the urge to constantly use the engine’s power. The Q50 Red Sport’s twin-turbo V6 is addictive, but frequent hard acceleration dramatically reduces fuel economy. Smooth, gradual acceleration and anticipating traffic flow can significantly improve your MPG.

Proper tire inflation is critical for maximizing fuel efficiency. Check your tire pressure regularly and maintain the recommended levels specified on the doorjamb sticker. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel.

Consider using the Q50’s drive mode selector. The “Eco” mode optimizes various vehicle systems, including throttle response and transmission shift points, to prioritize fuel efficiency. While it may slightly dampen performance, it can make a noticeable difference on longer trips.

Minimize idling time. Modern engines are designed to operate efficiently even at idle, but prolonged idling still consumes fuel without covering any distance. If you anticipate being stopped for more than a minute or two, it’s generally more efficient to turn off the engine.

Reduce unnecessary weight; carrying excessive cargo in the trunk or rear seats adds extra load to the vehicle, impacting fuel economy. Remove any items that are not essential for your daily commute or driving needs.