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How many miles per gallon does a Ram Promaster van get?

This article explains the fuel economy you can expect from Ram ProMaster vans, covering both gas and diesel options and how different configurations affect mpg. It also outlines real-world factors that influence mileage and offers practical guidance for planning trips and budgeting fuel costs.

In general, a gas-powered Ram ProMaster with the 3.6L V6 tends to average around the mid-teens miles per gallon combined, while the available EcoDiesel 3.0L tends to run higher, often in the low- to mid-20s miles per gallon combined. Exact numbers vary based on engine choice, payload, driving conditions, and vehicle configuration.

Below we break down typical EPA estimates for the two main engine options and what total mileage you might expect under real-world use. Note that actual results will vary with load, driving style, route, and whether the van is carrying equipment or cargo.

Fuel economy by engine

Gasoline engine: 3.6L V6

EPA estimates for the gasoline ProMaster can vary slightly by model year and configuration, but typical ranges are:

City: 12–14 mpg

Highway: 19–23 mpg

Combined: 15–18 mpg

Real-world mileage often sits toward the lower end of these ranges when carrying heavy cargo or frequent stop-and-go driving.

Diesel engine: 3.0L EcoDiesel

EPA estimates for the EcoDiesel ProMaster generally show stronger highway efficiency and better overall miles per gallon, with typical ranges:

City: 16–19 mpg

Highway: 23–27 mpg

Combined: 19–22 mpg

Diesel mileage tends to improve on long highway stretches and with lighter payloads, though heavy payloads can lessen the advantage.

Other factors influencing mpg

Several variables can push mpg higher or lower beyond the base engine estimates:

Payload and cargo weight

Wheelbase and roof height (cargo van configurations vary)

Tire type and inflation, aerodynamics, and aftermarket equipment

Driving habits, temperature, and climate control use

Terrain and driving conditions (city vs. highway, hills, and congestion)

Understanding these factors helps you set realistic fuel-budget expectations for your specific ProMaster configuration and typical routes.

Practical considerations for buyers

When choosing between gasoline and diesel, consider how you’ll use the van. If you do mostly highway driving with lighter cargo, the EcoDiesel’s efficiency can be advantageous. If you frequently operate in urban settings with heavy payloads and shorter trips, the gasoline engine might be more cost-effective due to lower upfront costs and maintenance considerations.

Summary

The Ram ProMaster’s fuel economy varies by engine and configuration. Gas-powered models (3.6L V6) typically deliver roughly 15–18 mpg combined, with about 12–14 mpg in the city and 19–23 mpg on the highway. EcoDiesel models (3.0L) generally achieve about 19–22 mpg combined, with around 16–19 mpg in the city and 23–27 mpg on the highway. Real-world numbers depend heavily on payload, driving style, and route characteristics.

For the most accurate figures for a specific build, check the EPA-rated fuel economy window for that model year and configuration or use a current VIN-based calculator from the manufacturer or a reputable automotive site.

What is the gas mileage on a Ram ProMaster?

The Ram ProMaster's fuel economy varies significantly based on factors like model, load, and driving conditions, but averages roughly 14-17 MPG combined. Highway driving can yield better results, often in the 18-20 MPG range, while city driving, especially with heavy loads or stop-and-go traffic, can lower it to 14 MPG or even less. For the most fuel-efficient performance, it's recommended to maintain moderate speeds and keep the load light.

Key factors affecting fuel economy

Driving conditions: Highway speeds, terrain, and a lot of stop-and-go city driving will impact your MPG.
Vehicle load: The weight of the van, whether from tools, equipment, or a camper conversion, significantly reduces fuel efficiency.
Speed: Driving at lower, more consistent speeds (around 55-65 mph) is more fuel-efficient than driving at higher speeds.
Maintenance: Properly maintained vehicles, with clean air filters and working O2 sensors, will perform better.
Varying model years: Newer models with upgrades like the 9-speed transmission have shown improvements in fuel economy.

Performance tips for better MPG

Maintain a moderate speed: Driving between 55-65 mph on the highway is more efficient than driving faster.
Keep loads light: Minimize the weight of tools, equipment, and cargo to improve mileage.
Plan your routes: Avoid heavy traffic areas and plan for fewer stops where possible.
Perform regular maintenance: Follow the recommended service schedule, as things like oxygen sensors can have a major impact on efficiency.

What is the difference between a 2500 and 1500 RAM ProMaster?

The main differences between the ProMaster 1500 and 2500 are the suspension, towing capacity, and payload, with the 2500 being a heavier-duty model designed for more demanding work. The 1500 has medium-duty suspension and a higher max towing capacity, while the 2500 has heavy-duty suspension, a lower max towing capacity, and greater payload capability.

Feature	ProMaster 1500	ProMaster 2500
Suspension	Medium-duty	Heavy-duty
Max Towing Capacity	6,910 lbs	6,700 lbs
Max Payload Capacity	4,260 lbs	Greater payload capability
Primary Purpose	Everyday use	More demanding jobs, heavier builds
Ride Quality	Generally smoother with a light load	Can feel rougher when empty, but smooths out under a heavy load
Wheelbase	Available in 118", 136", and 159" wheelbases	Available in 136" and 159" wheelbases
Body Size	Available in shorter and longer cargo lengths	Available in longer cargo lengths

ProMaster 1500: Best for lighter-duty commercial use or camper builds that do not require a heavy payload. It offers a higher max towing capacity, making it suitable for towing but potentially less ideal for heavy cargo.
ProMaster 2500: The superior choice for heavy-duty applications like extensive upfitting or significant cargo hauling. It has a sturdier, heavy-duty suspension that can handle a heavier build and is the better option if you plan on frequently carrying heavy loads.

How many miles per gallon does a ProMaster 3500 van get?

The Ram ProMaster 3500's MPG varies, but most models with the 3.6L V6 engine get an EPA-estimated 12 mpg city and 16 mpg highway. Real-world mileage can range from 14 mpg to 20 mpg or higher, depending heavily on driving conditions, load weight, and speed.
EPA estimated MPG

City: 12 mpg
Highway: 16 mpg

Real-world MPG

Many owners report lower mileage in city driving.
Highway mileage is significantly impacted by speed; speeds over 65-70 mph can reduce efficiency.
A heavy load, such as a fully outfitted conversion van, will typically lower the average to around 14-17 mpg.
Some drivers report achieving up to 20 mpg or more by driving conservatively at lower speeds.

Factors that influence MPG

Speed: Driving at lower, consistent speeds will result in better fuel economy.
Load: The weight of the cargo or conversion build will reduce MPG.
Driving conditions: Stop-and-go city traffic and hilly terrain will lower your average compared to flat, open highways.

What is the gas mileage on a 2025 Ram ProMaster 2500?

We haven't tested a ProMaster with the nine-speed automatic transmission, but during our time with a ProMaster with the old six-speed automatic, we observed a fuel economy of 14 mpg. That's equal to the mileage we observed with a Ford Transit.

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.