22 MPG combined isn’t going to win any fuel economy awards, but it’s the reality for the 2022 Mercedes-Benz Metris when configured for the US Postal Service. Frankly, for the specific mission of this vehicle, it’s a compromise many are willing to accept. This version of the Metris is built for one purpose: reliable, high-volume package delivery. Fuel efficiency, while important, takes a back seat to payload capacity, durability, and cargo space. Understanding the context of this van is essential before judging its miles per gallon.

City and highway performance

The EPA estimates that the 2022 Mercedes-Benz Metris (US Postal) achieves 20 MPG in the city and 25 MPG on the highway. Considering the stop-and-go nature of postal routes and the weight these vans typically carry, these numbers are understandable. The 2.0L 4-cylinder engine, while relatively small for a vehicle of this size, is turbocharged to provide adequate power for accelerating with heavy loads. The 9-speed automatic transmission also helps optimize fuel efficiency at various speeds, especially on longer highway stretches between delivery zones.

Annual fuel cost

The EPA estimates the annual fuel cost for this particular Metris configuration at $2,650. This figure assumes 15,000 miles of driving per year and uses the EPA’s estimate of average fuel prices at the time of testing. It’s a useful benchmark for comparing against other vehicles, but be aware that actual costs will vary depending on local fuel prices and individual driving habits. Postal routes, for instance, often involve significantly more idling than typical driving, which can negatively impact fuel consumption and inflate the annual cost.

Real-world expectations

While the EPA numbers provide a standardized estimate, real-world fuel economy for the Metris (US Postal) can fluctuate. Factors like the specific route, the driver’s habits, and the weight of the cargo all play a significant role. Heavily loaded vans, driven aggressively with frequent stops and starts, will likely see fuel economy below the EPA estimates. Meticulous driving, lighter loads, and routes with fewer stops might yield slightly better results. It’s critical for fleet managers to monitor fuel consumption across their vehicles to identify areas for improvement and ensure optimal efficiency.

How it compares

Compared to other vans in the commercial segment, the Metris’s fuel economy occupies a middle ground. The Ford Transit Connect, for instance, with its 2.0L engine, achieves a slightly better 26 MPG combined. But what the Transit Connect gains in MPG, it loses in overall cargo volume and payload capacity, a critical tradeoff for the USPS. The larger Ford Transit, with its various engine options, offers more versatility but generally achieves lower fuel economy numbers, often in the 15-19 MPG range, depending on the configuration, see all Ford fuel economy data. The Ram ProMaster City, another small cargo van, achieves around 24 MPG combined, placing it closer to the Transit Connect. Ultimately, the Metris’s 22 MPG represents a balance between efficiency and capability. For postal applications, the total cost of ownership, including maintenance and reliability, tends to be a more critical factor than fuel economy alone. Comparing METRIS MPG across all years can provide additional insight.

Tips to maximize efficiency

Given the nature of postal delivery, maximizing fuel efficiency in the Metris (US Postal) requires a focused approach. Gentle acceleration and braking an are important. Avoiding harsh starts and stops not only saves fuel but also reduces wear and tear on the vehicle’s brakes and tires, lowering overall maintenance costs. Anticipate traffic conditions and maintain a steady speed whenever possible.

Regular preventative maintenance is essential for optimal fuel economy. Ensuring the engine is properly tuned, the tires are correctly inflated, and the air filter is clean can significantly improve gas mileage. Address any mechanical issues promptly, as even minor problems can negatively impact fuel consumption. A well-maintained vehicle operates more efficiently and reliably.

Minimize idling time whenever possible. While some idling is unavoidable on postal routes, excessive idling wastes fuel and contributes to emissions. Encourage drivers to turn off the engine during longer stops, where feasible. Consider implementing idle-reduction technologies or policies to further minimize unnecessary fuel consumption.

Monitor tire pressure regularly. Underinflated tires increase rolling resistance, which reduces fuel economy. Check tire pressure at least once a week and inflate tires to the recommended pressure specified by Mercedes-Benz. Properly inflated tires not only improve fuel efficiency but also enhance handling and extend tire life.

Optimal route planning can play a role, even for fixed postal routes. Identifying opportunities to minimize backtracking and avoid congested areas can save fuel. While postal routes are typically pre-determined, look for ways to smooth the route to reduce stops and starts where possible. Communication about traffic conditions and potential route disruptions can limit excess fuel burning.