2009 Mercedes-Benz S63 AMG: MPG and fuel economy
The 2009 Mercedes-Benz S63 AMG is rated by the U.S. Environmental Protection Agency at 13 combined MPG, with 11 MPG in the city and 17 MPG on the highway. That lands well below the average for cars in the Large Cars class in the same model year.
This page collects every fuel-economy figure the EPA publishes for the 2009 Mercedes-Benz S63 AMG. Below you will find the headline combined, city, and highway MPG, the estimated annual fuel cost at three different driving levels, the tailpipe CO₂ emissions, and a full breakdown of the engine and drivetrain. If you want to know whether this generation got more or less efficient over the years, the year-over-year table further down covers every model year the EPA has rated.
Key takeaways
- Returns 25% worse combined MPG than the average car in the Large Cars class for the 2009 model year (17.4 MPG class average).
- The most efficient car in the Large Cars class for the 2009 model year is the Honda Accord at 25 MPG.
- The Mercedes-Benz S63 AMG has gained 5 MPG since its first rated model year, the 2008 Mercedes-Benz S63 AMG at 13 MPG.
- EPA estimates this car costs around $15,750 more in fuel over five years than an average new vehicle of the same model year.
- Subject to the federal Gas Guzzler Tax, which applies to passenger cars rated below 22.5 combined MPG.
- Requires premium gasoline, which typically adds about 40 to 60 cents per gallon to the EPA's annual fuel cost estimate.
Fuel economy at a glance
These are the EPA's official ratings for the 2009 Mercedes-Benz S63 AMG. The numbers come from a standardised laboratory test cycle and are the same figures that appear on the window sticker of every new car. Real-world mileage varies with driving style, weather, fuel quality, and how heavily loaded the car is.
Combined MPG is a 55/45 weighted blend of the city and highway test cycles. The EPA uses it as the single number you can compare across the entire dataset, including hybrids and EVs (which use the equivalent MPGe figure).
| Combined MPG | 13 MPG |
| City MPG | 11 MPG |
| Highway MPG | 17 MPG |
| Annual fuel cost | $5,300 |
| Tailpipe CO₂ | 684 g/mi |
| Fuel type | Premium |
How the 2009 Mercedes-Benz S63 AMG compares
The 2009 Mercedes-Benz S63 AMG returns 13 combined MPG. Cars in the Large Cars class for the same model year average 17.4 MPG, which puts this car behind the class average by about 25%.
The most efficient car in the Large Cars class for the 2009 model year is the Honda Accord at 25 MPG. The bar chart below puts the Mercedes-Benz S63 AMG alongside the class best and the class average so you can see the full picture.
For broader context, the average new car of the 2009 model year (across all classes) returns 19.5 MPG. Larger vehicles pull the all-cars average down, so do not use that figure on its own to judge a small car or a hybrid. The full list of the most efficient cars of the 2009 model year is on its own page.
Annual fuel cost across driving patterns
The headline annual fuel cost the EPA publishes assumes 15,000 miles of driving per year and a fuel mix of 55% city and 45% highway. The dollar figure is calculated using the EPA's current reference price for premium gasoline, which is $4.61/gallon. EPA updates that reference periodically rather than tracking live pump prices, so treat it as a window-sticker estimate rather than today's pump number.
The table below scales the EPA's number to three common driving patterns. The combined MPG and the reference fuel price stay constant, only the annual mileage changes. To get a current-prices estimate, take your local gas price and multiply by 1153.8 gallons (the car's annual consumption at the rated MPG).
| Driving pattern | Estimated annual fuel cost |
|---|---|
| Light driver, 7,500 miles per year | $2,650 |
| Average driver, 15,000 miles per year | $5,300 |
| Heavy driver, 25,000 miles per year | $8,833 |
Year-over-year MPG for the Mercedes-Benz S63 AMG
The EPA has rated the Mercedes-Benz S63 AMG across 6 model years, from 2008 Mercedes-Benz S63 AMG through 2013 Mercedes-Benz S63 AMG. The numbers below are the best combined MPG figure the EPA published for each year, which lets you see when the car was at its most efficient and how recent generations stack up.
The 2008 Mercedes-Benz S63 AMG returned 13 MPG. The most recent 2013 Mercedes-Benz S63 AMG returns 18 MPG. That is an improvement of 5 MPG over 5 model years, the kind of gain that usually comes from smaller engines, hybrid systems, or aerodynamic redesigns.
| Year | Combined MPG | Open year page |
|---|---|---|
| 2013 | 18 MPG | 2013 Mercedes-Benz S63 AMG |
| 2012 | 18 MPG | 2012 Mercedes-Benz S63 AMG |
| 2011 | 18 MPG | 2011 Mercedes-Benz S63 AMG |
| 2010 | 14 MPG | 2010 Mercedes-Benz S63 AMG |
| 2009 | 13 MPG | this page |
| 2008 | 13 MPG | 2008 Mercedes-Benz S63 AMG |
Compare against other Large Cars for 2009
If you are cross-shopping the 2009 Mercedes-Benz S63 AMG, the most useful comparison is against the other cars in the Large Cars class for the same model year. The list below shows the highest-MPG peers, ranked from most to least efficient. Click any of them to open its full page.
The Honda Accord leads this group at 25 MPG, 12 MPG ahead of the 2009 Mercedes-Benz S63 AMG.
Specifications
The 2009 Mercedes-Benz S63 AMG runs a 6.2-liter 8-cylinder engine paired with a automatic (s7), sending power through rear-wheel drive.
Engine, transmission, and drivetrain together drive most of the variation in fuel economy across trims. A larger engine moves the car with less effort but burns more fuel. A turbo lets a small engine punch above its weight, often without much MPG penalty. All-wheel drive adds traction and weight, and usually costs a couple of MPG compared with two-wheel drive of the same engine.
- Vehicle class
- Large Cars
- Engine
- 6.2L 8-cylinder
- Transmission
- Automatic (S7)
- Drivetrain
- Rear-Wheel Drive
- Fuel type
- Premium
- Annual petroleum use
- 22.9 barrels per year
- Gas guzzler tax
- Applies (federal)
Common questions about the 2009 Mercedes-Benz S63 AMG
Quick answers to the questions people most often search for when looking up the 2009 Mercedes-Benz S63 AMG.
-
Is the 2009 Mercedes-Benz S63 AMG fuel efficient?
Not particularly. The 2009 Mercedes-Benz S63 AMG returns 13 combined MPG, which trails the average car in the Large Cars class for the same model year by about 25%. -
What MPG does the 2009 Mercedes-Benz S63 AMG get?
The EPA rates the 2009 Mercedes-Benz S63 AMG at 13 combined MPG, 11 MPG in city driving, and 17 MPG on the highway. Real-world numbers depend on your driving style, the weather, and how loaded the car is. -
How much does it cost to fuel a 2009 Mercedes-Benz S63 AMG per year?
The EPA estimates an annual fuel cost of $5,300 for the 2009 Mercedes-Benz S63 AMG. That figure assumes 15,000 miles of driving per year, a 55% city and 45% highway split, and the EPA's published average fuel price for the rated fuel grade. -
Does the 2009 Mercedes-Benz S63 AMG require premium gas?
Yes. The EPA lists the 2009 Mercedes-Benz S63 AMG as requiring premium gasoline. Running it on regular can reduce performance and may affect engine warranties, so it is not a recommended way to save at the pump. -
Has the Mercedes-Benz S63 AMG become more fuel efficient over time?
Yes. The first EPA-rated Mercedes-Benz S63 AMG, the 2008 Mercedes-Benz S63 AMG, returned 13 combined MPG. The most recent 2013 Mercedes-Benz S63 AMG returns 18 MPG, an improvement of 5 MPG over the run. -
How much CO₂ does the 2009 Mercedes-Benz S63 AMG emit?
Tailpipe CO₂ emissions are 684 g/mi. Multiplied across a typical year of driving (15,000 miles) that works out to about 10,254 kilograms of CO₂. -
What is the difference between the city and highway MPG of the 2009 Mercedes-Benz S63 AMG?
City driving returns 11 MPG and highway driving returns 17 MPG, a gap of 6 MPG. A spread that wide is typical of cars with conventional automatic or manual transmissions, where stop-start city traffic eats more fuel than a steady highway cruise. -
What engine is in the 2009 Mercedes-Benz S63 AMG?
The 2009 Mercedes-Benz S63 AMG has a 6.2-liter 8-cylinder engine. -
What transmission and drivetrain does the 2009 Mercedes-Benz S63 AMG have?
The 2009 Mercedes-Benz S63 AMG comes with a automatic (s7) transmission and rear-wheel drive. -
How does the 2009 Mercedes-Benz S63 AMG compare to the best car in its class?
The most efficient car in the Large Cars class for the 2009 model year is the Honda Accord at 25 combined MPG. The Mercedes-Benz S63 AMG returns 13 MPG, a gap of 12 MPG. If you are comparing on fuel economy alone, the class leader is worth a look.
Source: U.S. EPA fuel economy dataset. Annual fuel cost figures assume 15,000 miles of driving per year and a 55% city, 45% highway split. Real-world mileage varies with driving conditions, vehicle maintenance, fuel quality, and driver behaviour.