16 MPG combined. That’s the headline figure for the 2020 Ford Shelby GT350 Mustang. It’s a number that will likely send shivers down the spines of Prius owners, but for the target demographic of this track-focused beast, it’s simply the price of admission. No one buys a GT350 expecting hybrid-like efficiency. They buy it for the visceral experience, the screaming flat-plane crank V8, and the raw, untamed performance that makes it a legend on both the street and the circuit.

City and highway performance

The EPA estimates 14 MPG in the city and 21 MPG on the highway for the 2020 GT350. These numbers reflect the car’s personality. Stop-and-go traffic is the enemy of any high-performance engine, and the GT350’s 5.2L V8 is no exception. It’s a thirsty engine designed to run, to rev, and to deliver exhilarating power. The highway figure is more respectable, but even then, the temptation to dip into the throttle and unleash the engine’s fury will inevitably take its toll. A responsible driver with a light foot *could* see numbers closer to 21 MPG on a long trip; however, most GT350 owners prioritize the driving experience over maximizing fuel efficiency.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Ford Shelby GT350 Mustang at exactly $3,600. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Of course, your actual fuel costs will vary depending on your driving habits, fuel prices in your area, and the type of fuel you use. The GT350 requires premium fuel, which adds to the expense. If you spend a considerable amount of time on the track, expect that annual fuel cost to climb substantially. Track days are not factored into the EPA’s conservative estimate.

Real-world expectations

While the EPA estimates provide a baseline, real-world fuel economy for the GT350 often falls short. Owners frequently report averages closer to 12-15 MPG in mixed driving. Aggressive driving, frequent track days, and even the temptation to simply hear that glorious exhaust note will all contribute to lower MPG figures.

Prospective buyers should also consider that modifying the car with aftermarket parts, although extremely common among GT350 owners, can also impact fuel efficiency. all Ford fuel economy data can be found on this site.

How it compares

Competitors to the GT350, such as the Chevrolet Camaro ZL1 (16 MPG combined) and the Dodge Challenger Hellcat (16 MPG combined), offer similar fuel economy numbers. Comparing the GT350 to a standard Mustang GT (19-20 MPG combined depending on the model year and trim) highlights the trade-off between performance and efficiency. The GT350 buyer is typically aware of these comparisons but prioritizes the car’s unique performance characteristics ,the flat-plane crank engine, the MagneRide suspension, and the track-focused chassis tuning, over fractional gains in fuel economy. SHELBY MPG across all years can be reviewed if you are considering other model years.

Tips to maximize efficiency

Despite the GT350’s performance-oriented nature, there are a few strategies owners can use to improve fuel economy. Maintaining a steady speed on the highway, avoiding excessive acceleration, and anticipating traffic flow can all make a difference. However, remember that this isn’t a laboratory; the GT350’s engine is designed to be enjoyed, so obsessing over fuel consumption defeats the purpose.

Proper maintenance is critical. Ensure the engine is properly tuned, the tires are correctly inflated, and the air filter is clean. These simple steps can help the engine run efficiently and optimize fuel consumption. Modern engine management systems are effective, but they still rely on properly functioning components to deliver peak performance and economy.

Shift smoothly and deliberately. The GT350’s manual transmission is a pleasure to use, but jerky shifts and unnecessary revving will waste fuel. Practice smooth transitions between gears and avoid aggressive downshifting unless necessary for performance. Treat the car with respect, and it will, in return.

Minimize idle time where possible. Letting the engine idle for extended periods, especially when cold, wastes fuel. If you anticipate being stationary for more than a minute or two, consider turning off the engine. This also extends to track days where you might be sitting in a grid queue for some time. Turn off the engine and save premium high-octane gas.