The 2019 Mercedes-Benz AMG E63 S 4matic, with its 4.0L 8-cyl engine, gets 18 MPG combined. Fuel efficiency isn’t the main concern for buyers of this hand-built, 603-horsepower, twin-turbocharged V8 super sedan. They prioritize rapid acceleration, a powerful exhaust sound, and the ability to complete a quarter mile in slightly over 11 seconds. This car focuses on high performance, and its fuel consumption shows that. Buyers are typically high-earning enthusiasts who understand and accept the fuel cost.

City and highway performance

EPA estimates for the E63 S are 15 MPG in the city and 23 MPG on the highway. The city figure indicates high fuel consumption in stop-and-go traffic. The car’s heavy weight and the engine’s readily available horsepower contribute to this low number. The 23 MPG highway figure is more reasonable, partly because of the nine-speed automatic transmission, which allows the engine to run at lower RPMs in higher gears. However, aggressive passing will reduce these gains, as the turbos activate and the fuel injectors spray a lot of premium gasoline.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,200 for the 2019 Mercedes-Benz AMG E63 S. This is based on 15,000 miles per year, with 55% in the city and 45% on the highway. It also assumes using premium gasoline, which is needed for the engine’s performance and long life. The calculation is based on a national average fuel price, which changes. Your actual fuel costs may vary based on your driving and local gasoline prices. An annual expense of $3,200 places the E63 S in a higher cost range compared to more fuel-efficient vehicles.

Real-world expectations

Real-world fuel economy for the E63 S varies based on driving style. Those who often use the AMG’s performance will likely see numbers below the EPA estimates. Drivers who are more restrained and drive mainly on the highway might get figures closer to, or even above, the 23 MPG highway rating. Resisting the urge to use all of its power is a challenge, as the E63 S is engineered for high performance. For those seeking ultimate AMG performance, you can compare AMG MPG across all years.

How it compares

The E63 S has comparable fuel economy to other high-performance sedans. The BMW M5 Competition, with its 617-horsepower twin-turbo V8, has an EPA-estimated 17 MPG combined. The Audi RS7, with a 591-horsepower twin-turbo V8, gets 18 MPG combined, matching the E63 S. The Porsche Panamera Turbo, which has 550 horsepower from its twin-turbo V8, also gets around 18 MPG combined. All of these cars value performance over efficiency, and their fuel economy shows this. Buyers of these vehicles understand this trade-off and value them based on the overall driving experience, not fuel savings. For a broader look, you can find all Mercedes Benz fuel economy data.

Tips to maximize efficiency

Improving fuel economy in an AMG E63 S can be done with a few adjustments. Avoid hard acceleration and braking, as these consume fuel. Use smooth and consistent throttle, allowing the engine to operate efficiently.

You can choose a more fuel-efficient setting using the car’s drive mode selector when not prioritizing peak performance. The “Comfort” mode usually reduces throttle response and adjusts transmission shift points for better fuel economy. It won’t turn the E63 S into a Prius, but it can help in everyday driving.

Proper tire inflation improves fuel efficiency. Check your tire pressures and inflate them to the recommended levels, which are usually on a sticker inside the driver’s side door. Underinflated tires create more rolling resistance, which raises fuel consumption.

Reduce idling, especially when the engine is cold. Modern engines don’t need long warm-up periods, and idling wastes fuel. Start the engine and drive gently, warming up the engine under load. This is an efficient way to reach operating temperature.

Follow scheduled maintenance, including tune-ups and oil changes. A well-maintained engine runs more efficiently and gets better fuel economy. Replacing worn spark plugs, air filters, and other components helps optimize engine performance and lower fuel consumption.