How big is the gas tank on a ProMaster 2500?
The gas tank capacity for the Ram ProMaster 2500 is 24 gallons (about 90.8 liters). This figure applies to the common gasoline engine configuration, and the diesel option uses the same capacity. This article breaks down what that means for range and real-world use across typical setups.
Tank size across common configurations
The ProMaster 2500 is commonly equipped with two powertrain options: a gasoline 3.6L V6 and a diesel 3.0L EcoDiesel. In both cases, the standard fuel tank capacity is 24 gallons (90.8 L). There are no widely indicated variations in tank size by wheelbase or roof configuration for the standard cargo van.
Before listing the capacities, this paragraph introduces the key point: most buyers will encounter a 24-gallon tank regardless of whether they choose gasoline or diesel, making range planning straightforward across configurations.
- Gasoline engine (3.6L V6): 24 gallons (90.8 L)
- Diesel engine (3.0L EcoDiesel I4): 24 gallons (90.8 L)
Concluding paragraph: In practice, the ProMaster 2500’s fuel-tank size sits at 24 gallons across the main powertrain options, providing a consistent basis for planning fuel stops and range expectations.
Estimated driving range and real-world usage
Understanding how a 24-gallon tank translates into miles depends on engine choice, load, driving style, and terrain. The following ranges reflect typical conditions and common efficiency figures for the ProMaster lineup.
Before listing the range estimates, note that actual mileage will vary with payload, roof height, wheelbase, and driving conditions. The numbers below are approximate and intended for planning rather than a guaranteed specification.
- Gasoline ProMaster 2500: Roughly 360–430 miles per full tank in mixed driving (roughly 14–18 mpg, depending on load and conditions).
- Diesel ProMaster 2500: Roughly 420–520 miles per full tank in mixed driving (roughly 17–23 mpg, depending on load and conditions).
Concluding paragraph: While exact range depends on configuration and usage, a full 24-gallon tank typically yields about 350–520 miles of range in common, real-world driving scenarios.
Practical considerations for planning
For fleet managers, delivery services, and long-haul use within a city or regional network, the 24-gallon tank balances payload and range. Planning tools often multiply miles-per-gallon estimates by 24 to gauge refueling frequency and route efficiency.
Concluding paragraph: When planning trips or daily routes, factor in traffic, terrain, and the van’s load to estimate how many stops you’ll need between fill-ups, using the 24-gallon capacity as the baseline.
Summary
The ProMaster 2500 standard fuel-tank capacity is 24 gallons (approximately 90.8 liters) for both the gasoline 3.6L V6 and the diesel 3.0L EcoDiesel configurations. This capacity translates to an approximate range of about 360–520 miles depending on engine type, load, and driving conditions. For most operators, the 24-gallon tank offers a practical, predictable basis for planning refueling and trips across typical workday use.
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.
How many gallons of gas does a ProMaster 2500 hold?
Fuel & MPG
| Fuel type | Regular unleaded |
|---|---|
| Range in miles (city/hwy) | 0/0 mi. |
| Fuel tank capacity | 24.0 gal. |
What are common problems with the ProMaster 2500?
The most reported issues include:
- Electrical system malfunctions.
- Transmission hesitation.
- Interior build quality problems.
- Rearview camera glitches.
How big is the gas tank on the ProMaster?
The gas tank size for a standard Ram ProMaster is 24.0 gallons. This capacity is consistent across recent model years, including 2024 and 2025.
- Capacity: 24.0 gallons
- Fuel Type: Regular unleaded
- Note: This is for the standard ProMaster van. The smaller ProMaster City model has a different fuel tank capacity.
