25 MPG combined isn’t amazing, but it’s what you get for open-air thrills in the 2015 Volkswagen Eos. This isn’t a hypermiler; it’s a retractable-hardtop convertible offering a dose of German engineering in a compact and stylish package. Buyers want sunshine, understanding that the Eos offers an experience few other cars can match.

City and highway performance

The EPA estimates 22 MPG in the city and 30 MPG on the highway. The small difference between these figures suggests the Eos is more consistent than some of its peers. The six-speed dual-clutch automatic (DSG) transmission, branded here as “AM-S6,” makes the most of the 2.0-liter turbocharged four-cylinder engine. This pairing delivers adequate power for merging and passing, even if acceleration isn’t neck-snapping. The transmission works to keep the engine in its sweet spot, but its priority on higher gears to save fuel contributes to the less-than-electrifying city number.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2015 Volkswagen Eos to be $2,300. This is based on driving 15,000 miles per year, using a blend of city and highway driving, and assumes national average fuel prices. Your actual fuel costs will vary depending on your driving habits and the prevailing price of gasoline in your area, but that number provides a standardized baseline for comparison and planning.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world fuel economy for the 2015 Eos often hovers around the low 20s in combined driving. Aggressive driving, frequent use of the air conditioning, and primarily city commutes will lower the numbers. However, drivers who prioritize smooth acceleration, anticipate traffic flow, and spend more time on the open road can approach, or even slightly exceed, the EPA highway estimate.

How it compares

Compared to other convertibles of the era, the Eos’ fuel economy is average. A Mazda MX-5 Miata from the same year boasts a significantly higher combined rating of 29 MPG, appealing to buyers seeking maximum efficiency alongside open-air enjoyment from a legendary roadster. On the other end might be a BMW 328i Convertible, typically landing around 25 MPG combined, but requiring premium fuel, whereas the Eos runs just fine on regular unleaded. Even the larger, more powerful Infiniti Q60 convertible only gets about 22 MPG combined. This makes the Eos more appealing to those concerned with all aspects of running costs. You can see all Volkswagen fuel economy data to get a wider picture of the brand’s offerings. For a more specific view, consult EOS MPG across all years.

Tips to maximize efficiency

Check your tire pressure regularly. Underinflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel. Maintaining the recommended tire pressure, found on the sticker inside the driver’s side door jamb, makes a noticeable difference, especially on longer drives.

Avoid unnecessary idling. Modern engines consume surprisingly little fuel at idle, but prolonged periods of sitting with the engine running add up over time. If you’re stopped for more than a minute, especially at a light or in traffic, consider turning off the engine. The Eos’s starter is strong enough to handle frequent restarts without issue.

Resist the urge to accelerate aggressively. The turbocharged engine in the Eos responds readily to throttle input, but stomping on the gas pedal wastes fuel. Smooth, gradual acceleration is far more efficient and still provides adequate performance for most driving situations. Pay attention to the boost gauge (if so equipped) and keep it out of the high pressure zone.

Keep up with routine maintenance. A well-maintained engine is a more efficient engine. Follow the recommended service intervals for oil changes, air filter replacements, and spark plug replacements. These relatively inexpensive services help ensure the engine is running at its peak performance and fuel efficiency.