24 MPG combined is a surprisingly strong figure for a full-size pickup truck, and it’s the main reason why the 2015 Ram 1500 HFE 2WD with the 3.0L EcoDiesel V6 remains appealing to buyers who need a truck for hauling, towing, or bed space, but prioritize fuel efficiency over power or off-road capability. They understand the tradeoff and are willing to accept the compromises to save money at the pump.

City and highway performance

The EPA breaks down the 2015 Ram 1500 HFE EcoDiesel’s fuel economy further, revealing 21 MPG in the city and a noteworthy 29 MPG on the highway. The highway number, especially, is where the EcoDiesel performs best, making it a smart choice for those who drive long distances frequently, a common scenario for contractors or those who use their trucks for recreational purposes. The eight-speed automatic transmission plays an important role in achieving these figures, keeping the engine in its optimal efficiency range at various speeds.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2015 Ram 1500 HFE EcoDiesel is $2,300. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Experiences will vary depending on driving habits and local fuel costs, but this figure provides a benchmark for comparing fuel expenses against other vehicles. It’s a meaningful number for budget-conscious truck buyers doing their research.

Real-world expectations

The EPA estimates provide a useful baseline, but real-world fuel economy can differ. Driving style, load weight, tire pressure, and ambient temperature can impact fuel consumption. Owners who prioritize fuel efficiency and drive smart will likely see figures close to the EPA estimates, while those who frequently tow or drive aggressively may experience lower MPG. User data on websites like FuelEconomy.gov can offer a broader perspective on what to realistically expect.

How it compares

Compared to other full-size trucks of the same era, the 2015 Ram 1500 HFE EcoDiesel had an advantage in fuel economy. The equivalent 2015 Ford F-150 with the 2.7L EcoBoost V6 typically achieved around 22 MPG combined. A Silverado 1500 with the 5.3L V8 reported numbers closer to 19-20 MPG combined. The Ford and Chevy offer gasoline engine options, but neither could match the HFE EcoDiesel’s highway efficiency. This fuel economy gap is why buyers seeking an efficient pickup are drawn to all Ram fuel economy data.

Tips to maximize efficiency

Use light and steady throttle inputs. The EcoDiesel engine is designed to deliver its peak torque at relatively low RPMs, so you don’t need to press the accelerator hard to get moving. Gentle acceleration and anticipating traffic flow can improve fuel economy.

Maintain proper tire inflation. Under-inflated tires create increased rolling resistance, forcing the engine to work harder and consuming more fuel. Check your tire pressure regularly and inflate them to the recommended levels found on the driver’s side door jamb.

Minimize unnecessary weight. Carrying extra weight in the bed or cab of your truck reduces fuel efficiency. Remove any items you don’t need regularly to lighten the load and improve MPG. Removing unused roof racks or cargo carriers can reduce aerodynamic drag.

Take advantage of the eight-speed automatic transmission. Let the transmission shift smoothly through its gears, and avoid aggressive gear changes. Using cruise control on the highway can help maintain a consistent speed and optimize fuel consumption. Research the maintenance intervals as well. Keeping the transmission fluid fresh can add to vehicle efficiency. Consider looking at various years of 1500 MPG across all years to compare trends with other full-size trucks in this class.