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How many miles per gallon does a 2024 RAM 2500 Cummins get?

The 2024 RAM 2500 with the 6.7L Cummins Turbo Diesel typically delivers around 18 miles per gallon combined, with city efficiency near 15–16 mpg and highway efficiency near 21–23 mpg, depending on the exact configuration. For precise numbers, check the EPA window sticker for your specific cab, bed, and drivetrain.


What affects MPG on a RAM 2500 Cummins


Fuel economy on the RAM 2500 Cummins is influenced by several variables, and EPA estimates can vary widely based on how the truck is configured and used.



  • Drivetrain: two-wheel drive (2WD) versus four-wheel drive (4x4) typically changes mpg, with 4x4 usually yielding lower figures due to increased weight and drivetrain loss.

  • Cab and bed configuration: different combinations of regular, crew, and mega cabs with various bed lengths alter aerodynamics and weight, affecting efficiency.

  • Axle ratio and gearing: taller versus shorter gears change engine load at a given speed, influencing highway versus city efficiency.

  • Payload and towing: carrying heavy payload or towing reduces fuel economy compared to light-duty use.

  • Driving conditions and style: highway cruising at steady speeds generally improves mpg, while frequent starts, heavy acceleration, hills, and headwinds reduce it.


Understanding these factors helps explain why MPG figures can vary significantly between owners and configurations. Always refer to the official EPA rating for your exact build and consider real-world driving patterns when estimating fuel costs.


EPA estimates by configuration


EPA ratings for the 2024 RAM 2500 Cummins differ by body style, drivetrain, and gearing. Here are typical ranges you might see in reviews and on window stickers, though exact numbers will depend on your chosen setup.



  • 2WD crew cab with standard bed: roughly in the high teens to around 20 mpg combined, with city near the mid-teens and highway in the low- to mid-20s.

  • 4x4 crew cab with standard bed: generally a step down from 2WD, with combined mpg commonly in the high teens, city in the mid-teens, and highway near the low- to mid-20s.

  • 2WD regular cab or long-bed configurations: can push higher highway mpg due to aerodynamics and lighter weight, but city mpg remains in the mid-teens to low-20s, depending on gearing.


Because the RAM 2500 is a heavy-duty pickup with multiple configurations, the exact EPA numbers are best verified on the official fueleconomy.gov page or the dealer’s window sticker for your specific build.


Tips to maximize mpg on a RAM 2500 Cummins


While many factors are fixed by configuration, drivers can influence real-world efficiency through technique and maintenance.



  • Keep tire pressures at or near the recommended specification for load and speed.

  • Avoid excessive idling; shut off the engine during long stops when safe to do so.

  • Distribute payload evenly and avoid carrying unnecessary weight.

  • Plan routes to minimize stop-and-go driving and maximize steady highway cruising when possible.

  • Follow recommended maintenance intervals, including air filters, fuel filters, and engine oil changes, to sustain efficiency.


Real-world mileage will still track with payload, road grade, and driving habits, but these practices can help you approach the EPA estimates more closely.


Summary


The 2024 RAM 2500 Cummins diesel offers solid torque for towing and respectable highway efficiency for a heavy-duty pickup, with typical combined MPG in the high teens to low 20s depending on configuration. Exact numbers vary by cab/bed choice, drivetrain, gearing, and how the truck is used. For prospective buyers, the best approach is to review the EPA rating for the exact build and to plan fuel costs around real-world driving patterns.


Bottom line: if you’re evaluating a 2024 RAM 2500 Cummins for daily driving, estimate roughly 18 mpg combined on average, with variations based on configuration and usage. Always confirm the official EPA rating for your specific configuration to get the most accurate expectation.

How many miles per gallon does a 2024 6.7 diesel get?


The 2024 6.7L Power Stroke has an estimated highway MPG of 18-20 MPG under ideal conditions, though real-world mileage can vary from the low teens in city driving or with towing, to around 20 MPG for highway driving. Short trips and city driving can result in lower averages closer to 13 MPG, while heavy loads or towing can drop the average significantly. 
This video shows the real-world fuel economy of the 2024 Ford F350 6.7 Powerstroke under various driving conditions: 1mPD Diesel PowerYouTube · Nov 6, 2024
Factors affecting MPG

  • Driving conditions: Highway driving at a consistent speed yields better fuel economy than city driving or short trips. 
  • Towing and load: Towing or carrying heavy loads significantly decreases MPG. Some owners report averages as low as 12 MPG while towing. 
  • Engine output: Both standard and high-output versions of the 6.7L Power Stroke deliver similar fuel economy results in testing, according to one YouTube video. 
  • Maintenance and conditions: A new truck with a full DPF (Diesel Particulate Filter) might see improved fuel economy after the system has had time to clear, according to one YouTube video. 

This video explains the fuel economy of the 2024 Ford Super Duty Power Stroke based on driving conditions: 58sAutoMotive InquiriesYouTube · Apr 9, 2025



How many miles per gallon does a 2024 2500hd diesel get?


Depending on the trim, you can get anywhere from 16 mpg to 18 mpg in the city and 18 mpg to 21 mpg on the highway.



What is the gas mileage on the 2024 Ram 2500 Cummins?


The 2024 Ram 2500 with the 6.7L Cummins turbo diesel engine gets an estimated 14 mpg in the city and 17 mpg on the highway. Real-world fuel economy can vary, with many owners reporting 17-20 mpg on the highway under normal conditions. Towing will significantly decrease fuel efficiency, typically to around 10-12 mpg. 
You can watch this video to see a 100-mile test drive of the 2025 Ram 2500 with the 6.7L Cummins engine and the MPG results: 1mPickup Truck Plus SUV TalkYouTube · Apr 10, 2025
Estimated fuel economy

  • City: 14 mpg
  • Highway: 17 mpg 

Real-world and towing considerations
  • Highway driving: Many owners report achieving 17-20 mpg when driving on the highway, especially if they drive conservatively. 
  • Towing: Expect to see significantly lower fuel economy when towing, with figures around 10-12 mpg. 
  • Other factors: Modifying the truck, such as adding a lift kit or larger tires, can decrease fuel economy by 2 to 2.5 mpg. 



What is the fuel mileage on a 6.7 Cummins RAM 2500?


Unmatched Towing and Real-Word Fuel Economy
The 2025 Ram 2500 gets 14 miles per gallon driving through the city and 18 mpg on the highway with the 6.4-liter HEMI® V8 gas engine. The 6.7-liter Cummins Turbo Diesel engine is slightly more efficient with 16 mpg in the city and 21 mpg on the highway.


Kevin's Auto

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.