For a business building or expanding a commercial fleet, the powertrain you choose drives long-term operating costs — so “gas or diesel?” is one of the first questions Sprinter buyers ask. The short answer for 2026: the new Mercedes-Benz Sprinter is built around high-efficiency diesel power and an all-electric option — the gasoline engine is no longer part of the U.S. lineup. Every new Sprinter except the all-electric eSprinter runs a 2.0-liter four-cylinder turbo-diesel, offered in two output levels, and for most fleets the real ROI question is now which diesel to spec.

It is worth setting the history straight, because it often gets told backward. For the 2023 model year, Mercedes-Benz moved the Sprinter to an all-four-cylinder lineup and retired the long-running 3.0-liter diesel V6. At that point a 2.0-liter turbo gas engine was actually the standard engine, sold alongside the new 2.0-liter diesels. In the model years since, the gas option was phased out — which is how today’s Sprinter arrived at its diesel-and-electric lineup.

Every new diesel Sprinter pairs with the 9G-TRONIC nine-speed automatic transmission. Its wide gear-ratio spread keeps the diesel in its optimal power band — whether you are on the suburban streets of Bonita or out on a long-haul delivery — with quick, quiet shifts. For shoppers who specifically want a gasoline van, the market has shifted toward pre-owned Sprinter inventory or other brands; the current Sprinter’s focus is diesel and electric.

Output Compared: Horsepower and Torque

The bigger story here is torque, not peak horsepower. The Standard Output 2.0-liter turbo-diesel makes 168 hp and 295 lb-ft, while the High Output version steps up to 208 hp and 332 lb-ft.

The High Output engine’s 332 lb-ft arrives low in the rev range, so the van pulls cleanly from a stop, handles the grades and foothills around El Cajon, and merges onto the freeway with ease — even when it is near maximum payload. Choosing between the two usually comes down to your duty cycle and whether you need all-wheel drive, which is paired exclusively with the High Output engine. You can see which configurations are in stock across the Cargo, Crew, and Passenger body styles in our Sprinter and Metris van lineup.

Towing and Hauling Under Load

A properly equipped 2026 Sprinter tows up to 7,500 lbs — strong for the full-size van class. That capability is backed by a Gross Combined Weight Rating (GCWR) of 13,930 lbs on the 2500 series, and the heavy-duty 4500-series models carry a maximum payload of over 6,800 lbs. To help manage that mass, Active Brake Assist can detect pedestrians and apply emergency braking if the driver does not react in time.

Drivers across the El Cajon area who use their vans for weekend recreation often find the diesel’s torque delivery and cooling make towing more relaxed than a high-revving gas alternative.

Maximum towing and payload capacity figures are based on properly equipped vehicles and vary by configuration. Do not exceed any weight rating. See your owner’s manual and the vehicle’s door-jamb label for specific capacities.

Fuel Efficiency and Cost of Ownership

Because diesels are more thermally efficient, owners report estimated real-world fuel economy of roughly 14–18 mpg, depending on load and roof height. (The Sprinter is classified as a commercial vehicle, so it carries no official EPA fuel-economy rating; these are estimates.) Diesel can cost more per gallon, but the efficiency advantage under load often lowers total fuel spend for high-mileage users.

The Sprinter also runs long maintenance intervals — its Service A/B schedule extends up to 20,000 miles — which can mean less shop downtime than engines that need more frequent attention. For a business, every hour out of the service bay is an hour the van can earn.

EPA-estimated fuel economy figures are for comparison purposes only. Your actual mileage will vary depending on driving conditions, how you drive and maintain your vehicle, battery age/condition, and other factors.

The information in this article is general guidance and does not constitute a specific diagnostic or repair recommendation for any individual vehicle. Repair and maintenance decisions should be made in consultation with a certified technician based on the specific condition of your vehicle.

How the Sprinter Compares to Full-Size Rivals

Full-size vans split along powertrain philosophy. The Ford Transit offers the widest engine range — two gas V6s (a 3.5-liter PFDi and a 3.5-liter EcoBoost) plus the all-electric E-Transit. The Ram ProMaster uses a 3.6-liter gas V6 and now also offers an all-electric ProMaster EV. Mercedes-Benz has focused the Sprinter on diesel and electric. On maximum capability, the Sprinter leads the group on both towing and cargo capacity.

Specifications per Mercedes-Benz Vans; competitor figures per Ford and Ram manufacturer data.

The Sprinter’s available all-wheel-drive system uses torque-on-demand: it sends up to a 50% power split between the axles when traction calls for it, while defaulting to efficient rear-wheel drive the rest of the time. On the safety and comfort side, the Sprinter offers Attention Assist to monitor driver fatigue and a rear-view camera display that keeps visibility clear even with a full load.

Why Vanlife and Expedition Builds Favor Diesel

Builders and long-haul travelers lean diesel for range and reliability on remote routes. Diesel is the global standard along commercial corridors, so it is easy to find, and many diesel vans run auxiliary heaters off the main fuel tank for overnight warmth.

The available all-wheel drive is the other big draw: its torque-on-demand split provides traction for gravel roads and trailheads without sacrificing the ground clearance or interior packaging a camper build needs. And the High Output diesel’s 332 lb-ft keeps a heavily built van — water tanks, batteries, cabinetry — from ever feeling underpowered. If you are planning a build, our team can walk you through chassis layout and all-wheel-drive options.

Common Questions

Is the 2026 Mercedes-Benz Sprinter available with a gasoline engine?

No. The current Sprinter lineup is diesel plus all-electric (the eSprinter). For 2023 the Sprinter moved to an all-four-cylinder range and a gas 2.0-liter was offered for a time, but it has since been discontinued — today’s new Sprinter is diesel or electric.

Does the diesel Sprinter need special maintenance compared to a gas van?

It uses Diesel Exhaust Fluid (DEF) to meet emissions standards, which you top off periodically — a process similar to adding washer fluid. Maintenance follows the Service A/B schedule at intervals up to 20,000 miles.

Can I get all-wheel drive with the Standard Output engine?

No — the available all-wheel-drive system is paired only with the High Output 2.0-liter turbo-diesel. If you want all-wheel drive, choose the High Output variant.

How much can the diesel Sprinter tow?

The Standard Output diesel is rated up to 5,000 lbs, and the High Output diesel up to 7,500 lbs when properly equipped — so step up to the High Output for heavier trailers.

Is the diesel louder than the previous gas engine?

With the 9G-TRONIC transmission and added insulation, the modern Sprinter diesel is refined. You may notice a faint clatter at idle, but highway noise is comparable to many gas passenger vehicles.

Finding the Right Sprinter

Picking the right configuration matters. With the gas engine retired for 2026, the dual-output diesel lineup delivers more torque, stronger towing, and better efficiency for the long haul — Standard Output for local routes and deliveries, High Output (with available all-wheel drive) for the heaviest jobs and off-grid travel.

Maximum towing and payload capacity figures are based on properly equipped vehicles and vary by configuration. Do not exceed any weight rating. See your owner’s manual and the vehicle’s door-jamb label for specific capacities.

EPA-estimated fuel economy figures are for comparison purposes only. Your actual mileage will vary depending on driving conditions, how you drive and maintain your vehicle, battery age/condition, and other factors.

The information in this article is general guidance and does not constitute a specific diagnostic or repair recommendation for any individual vehicle. Repair and maintenance decisions should be made in consultation with a certified technician based on the specific condition of your vehicle.