The two-seat SLK 250 is the most fuel-efficient vehicle in the 2012 Mercedes-Benz line-up, with ratings of 23 city / 33 highway / 26 combined for the seven-speed automatic and 22 city / 32 highway / 26 combined for the six-speed manual. The SLK 250 is fitted with a gasoline-powered 1.8-liter four-cylinder engine. The C250 Coupe is rated just a tad lower, at 21 city / 31 highway / 25 combined.
Mercedes-Benz diesels have delivered dependable efficiency, decade after decade. We’ve had the good fortune to test the clean diesel 2012 E350 BlueTec Sedan, which is rated at 21 city / 32 highway / 25 combined, as well as the GL 350 BlueTec SUV and were highly impressed with both vehicles.
Releated:
2013 Mercedes-Benz Gas Mileage
| Year | Manf. | Model | Engine | Disp. | Trans. | City | Hwy. | Comb. | Fuel |
| 2013 | Mercedes-Benz | C250 | 4 cyl. | 1.8 liter | Auto 7-spd | 22 | 31 | 25 | Premium |
| 2013 | Mercedes-Benz | C250 Coupe | 4 cyl. | 1.8 liter | Auto 7-spd | 22 | 31 | 25 | Premium |
| 2013 | Mercedes-Benz | C300 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 29 | 23 | Premium |
| 2013 | Mercedes-Benz | C300 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 27 | 22 | Premium or E85 |
| 2013 | Mercedes-Benz | C350 | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 29 | 23 | Premium or E85 |
| 2013 | Mercedes-Benz | C350 | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 29 | 23 | Premium |
| 2013 | Mercedes-Benz | C350 | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 29 | 24 | Premium |
| 2013 | Mercedes-Benz | C350 4matic Coupe | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 27 | 22 | Premium |
| 2013 | Mercedes-Benz | C350 Coupe | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 29 | 23 | Premium |
| 2013 | Mercedes-Benz | C63 AMG | 8 cyl. | 6.2 liter | Auto 7-spd | 13 | 19 | 15 | Premium |
| 2013 | Mercedes-Benz | C63 AMG Black Series Coupe | 8 cyl. | 6.2 liter | Auto 7-spd | 13 | 19 | 15 | Premium |
| 2013 | Mercedes-Benz | C63 AMG Coupe | 8 cyl. | 6.2 liter | Auto 7-spd | 13 | 19 | 15 | Premium |
| 2013 | Mercedes-Benz | CL550 4matic | 8 cyl. | 4.7 liter | Auto 7-spd | 15 | 24 | 18 | Premium |
| 2013 | Mercedes-Benz | CL600 | 12 cyl. | 5.5 liter | Auto 5-spd | 12 | 18 | 14 | Premium |
| 2013 | Mercedes-Benz | CL63 AMG | 8 cyl. | 5.5 liter | Auto 7-spd | 15 | 22 | 18 | Premium |
| 2013 | Mercedes-Benz | CL65 AMG | 12 cyl. | 6 liter | Auto 5-spd | 12 | 18 | 14 | Premium |
| 2013 | Mercedes-Benz | CLS550 | 8 cyl. | 4.7 liter | Auto 7-spd | 17 | 25 | 20 | Premium |
| 2013 | Mercedes-Benz | CLS550 4matic | 8 cyl. | 4.7 liter | Auto 7-spd | 16 | 25 | 19 | Premium |
| 2013 | Mercedes-Benz | CLS63 AMG | 8 cyl. | 5.5 liter | Auto 7-spd | 16 | 25 | 19 | Premium |
| 2013 | Mercedes-Benz | E350 | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 29 | 23 | Premium |
| 2013 | Mercedes-Benz | E350 | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 30 | 23 | Premium |
| 2013 | Mercedes-Benz | E350 | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 30 | 23 | Premium or E85 |
| 2013 | Mercedes-Benz | E350 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 28 | 22 | Premium |
| 2013 | Mercedes-Benz | E350 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 29 | 22 | Premium |
| 2013 | Mercedes-Benz | E350 4Matic | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 29 | 22 | Premium or E85 |
| 2013 | Mercedes-Benz | E350 4matic (wagon) | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 27 | 22 | Premium |
| 2013 | Mercedes-Benz | E350 4matic Coupe | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 29 | 22 | Premium |
| 2013 | Mercedes-Benz | E350 4matic Coupe | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 27 | 22 | Premium or E85 |
| 2013 | Mercedes-Benz | E350 4matic Coupe | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 27 | 22 | Premium |
| 2013 | Mercedes-Benz | E350 Bluetec | 6 cyl. | 3 liter | Auto 7-spd | 22 | 32 | 25 | Diesel |
| 2013 | Mercedes-Benz | E350 Convertible | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 28 | 22 | Premium or E85 |
| 2013 | Mercedes-Benz | E350 Convertible | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 28 | 22 | Premium |
| 2013 | Mercedes-Benz | E350 Coupe | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 29 | 23 | Premium |
| 2013 | Mercedes-Benz | E350 Coupe | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 28 | 23 | Premium or E85 |
| 2013 | Mercedes-Benz | E350 Coupe | 6 cyl. | 3.5 liter | Auto 7-spd | 20 | 28 | 23 | Premium |
| 2013 | Mercedes-Benz | E400 Hybrid | 6 cyl. | 3.5 liter | Auto 7-spd | 24 | 30 | 26 | Premium |
| 2013 | Mercedes-Benz | E550 4matic | 8 cyl. | 4.7 liter | Auto 7-spd | 16 | 26 | 20 | Premium |
| 2013 | Mercedes-Benz | E550 Convertible | 8 cyl. | 4.7 liter | Auto 7-spd | 16 | 25 | 19 | Premium |
| 2013 | Mercedes-Benz | E550 Coupe | 8 cyl. | 4.7 liter | Auto 7-spd | 17 | 27 | 21 | Premium |
| 2013 | Mercedes-Benz | E63 AMG | 8 cyl. | 5.5 liter | Auto 7-spd | 16 | 24 | 19 | Premium |
| 2013 | Mercedes-Benz | E63 AMG (wagon) | 8 cyl. | 5.5 liter | Auto 7-spd | 15 | 23 | 18 | Premium |
| 2013 | Mercedes-Benz | G550 | 8 cyl. | 5.5 liter | Auto 7-spd | 12 | 15 | 13 | Premium |
| 2013 | Mercedes-Benz | G63 AMG | 8 cyl. | 5.5 liter | Auto 7-spd | 12 | 14 | 13 | Premium |
| 2013 | Mercedes-Benz | GL350 Bluetec 4matic | 6 cyl. | 3 liter | Auto 7-spd | 19 | 26 | 22 | Diesel |
| 2013 | Mercedes-Benz | GL450 4matic | 8 cyl. | 4.7 liter | Auto 7-spd | 14 | 19 | 16 | Premium |
| 2013 | Mercedes-Benz | GL550 4matic | 8 cyl. | 4.7 liter | Auto 7-spd | 13 | 18 | 15 | Premium |
| 2013 | Mercedes-Benz | GLK350 | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 25 | 21 | Premium |
| 2013 | Mercedes-Benz | GLK350 | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 25 | 21 | Premium |
| 2013 | Mercedes-Benz | GLK350 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 24 | 21 | Premium |
| 2013 | Mercedes-Benz | GLK350 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 24 | 21 | Premium |
| 2013 | Mercedes-Benz | ML350 | 6 cyl. | 3.5 liter | Auto 7-spd | 18 | 23 | 20 | Premium |
| 2013 | Mercedes-Benz | ML350 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 18 | 23 | 20 | Premium or E85 |
| 2013 | Mercedes-Benz | ML350 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 18 | 23 | 20 | Premium |
| 2013 | Mercedes-Benz | ML350 Bluetec 4matic | 6 cyl. | 3 liter | Auto 7-spd | 20 | 28 | 23 | Diesel |
| 2013 | Mercedes-Benz | ML550 4matic | 8 cyl. | 4.7 liter | Auto 7-spd | 14 | 20 | 16 | Premium |
| 2013 | Mercedes-Benz | ML63 AMG | 8 cyl. | 5.5 liter | Auto 7-spd | 13 | 17 | 15 | Premium |
| 2013 | Mercedes-Benz | R350 4matic | 6 cyl. | 3.5 liter | Auto 7-spd | 16 | 21 | 18 | Premium |
| 2013 | Mercedes-Benz | S350 Bluetec 4matic | 6 cyl. | 3 liter | Auto 7-spd | 21 | 31 | 25 | Diesel |
| 2013 | Mercedes-Benz | S400 Hybrid | 6 cyl. | 3.5 liter | Auto 7-spd | 19 | 25 | 21 | Premium |
| 2013 | Mercedes-Benz | S550 | 8 cyl. | 4.7 liter | Auto 7-spd | 15 | 25 | 19 | Premium |
| 2013 | Mercedes-Benz | S550 4matic | 8 cyl. | 4.7 liter | Auto 7-spd | 15 | 24 | 18 | Premium |
| 2013 | Mercedes-Benz | S600 | 12 cyl. | 5.5 liter | Auto 5-spd | 12 | 19 | 14 | Premium |
| 2013 | Mercedes-Benz | S63 AMG | 8 cyl. | 5.5 liter | Auto 7-spd | 15 | 23 | 18 | Premium |
| 2013 | Mercedes-Benz | S65 AMG | 12 cyl. | 6 liter | Auto 5-spd | 12 | 19 | 14 | Premium |
| 2013 | Mercedes-Benz | SL550 | 8 cyl. | 4.7 liter | Auto 7-spd | 17 | 25 | 20 | Premium |
| 2013 | Mercedes-Benz | SL63 AMG | 8 cyl. | 5.5 liter | Auto 7-spd | 16 | 25 | 19 | Premium |
| 2013 | Mercedes-Benz | SL65 AMG | 12 cyl. | 6 liter | Auto 7-spd | 14 | 21 | 17 | Premium |
| 2013 | Mercedes-Benz | SLK250 | 4 cyl. | 1.8 liter | Manual 6-spd | 22 | 32 | 26 | Premium |
| 2013 | Mercedes-Benz | SLK250 | 4 cyl. | 1.8 liter | Auto 7-spd | 23 | 33 | 26 | Premium |
| 2013 | Mercedes-Benz | SLK350 | 6 cyl. | 3.5 liter | Auto 7-spd | 21 | 29 | 24 | Premium |
| 2013 | Mercedes-Benz | SLK55 AMG | 8 cyl. | 5.5 liter | Auto 7-spd | 19 | 28 | 22 | Premium |
| 2013 | Mercedes-Benz | SLS AMG Coupe | 8 cyl. | 6.2 liter | Auto(AM7) | 13 | 19 | 15 | Premium |
| 2013 | Mercedes-Benz | SLS AMG GT Coupe | 8 cyl. | 6.2 liter | Auto(AM7) | 13 | 19 | 15 | Premium |
| 2013 | Mercedes-Benz | SLS AMG GT Roadster | 8 cyl. | 6.2 liter | Auto(AM7) | 13 | 19 | 15 | Premium |
| 2013 | Mercedes-Benz | SLS AMG Roadster | 8 cyl. | 6.2 liter | Auto(AM7) | 13 | 19 | 15 | Premium |
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– by Daniel Gray
