Ram · 2021
1500 2WD 3.0L 6-cyl
✓ EPA Verified
Diesel
Standard Pickup Trucks 2WD
Rear-Wheel Drive
City
22
MPG
Combined
26
MPG
Highway
32
MPG
Annual Fuel Cost
$2,150
Based on 15,000 miles/year · EPA estimates
Class Comparison — Standard Pickup Trucks 2WD
Top 7%
Better than 93 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 26 MPG
This vehicle
26 MPG
Class average
21 MPG
Class lowest
15 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
390 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine3.0L 6-cyl
TransmissionAutomatic 8-spd
DriveRear-Wheel Drive
Fuel TypeDiesel
Vehicle ClassStandard Pickup Trucks 2WD
TrimDiesel
Start-StopYes
EPA Vehicle ID43007

26 MPG combined is a respectable figure for the 2021 Ram 1500 2WD with the 3.0L EcoDiesel engine. This isn’t a compact car or a hybrid; it’s a full-size pickup truck designed for serious work and comfortable cruising. Buyers choosing this specific configuration often want good fuel efficiency without giving up the towing capacity and practicality that a truck offers. They’re willing to accept truck-like dimensions and handling in exchange for diesel fuel economy.

City and highway performance

The EPA estimates for the 2021 Ram 1500 EcoDiesel are 22 MPG in the city and 32 MPG on the highway. The city figure reflects the stop-and-go nature of urban driving, which is less efficient for larger vehicles. The highway number, however, shows the engine’s ability to cruise efficiently at steady speeds. That 32 MPG is seriously impressive for a truck this size, rivaling some mid-size SUVs. This split suggests the EcoDiesel Ram 1500 is best suited to buyers who do a significant amount of highway driving, whether that be for commuting, road trips, or long-distance hauling.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2021 Ram 1500 2WD EcoDiesel is $2,150. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Of course, your actual fuel costs will vary depending on your driving habits, local fuel prices, and how much time you spend idling. But the $2,150 figure provides a useful benchmark for comparing the Ram 1500’s running costs to other vehicles. This is a crucial selling point for buyers using their 1500 for work, where fuel costs directly impact their bottom line.

Real-world expectations

While the EPA estimates are a good starting point, real-world MPG can change based on several factors. Aggressive acceleration, towing heavy loads, and driving in extreme weather conditions can all negatively impact fuel economy. Proper vehicle maintenance, including regular oil changes and tire inflation, is critical for maintaining optimal efficiency.

Terrain plays a big role, too; consistent driving in hilly areas or off-road will significantly reduce MPG. Drivers who use their EcoDiesel 1500 primarily for light-duty tasks, prioritizing smooth acceleration and consistent speeds, have the best chance of meeting or even exceeding the EPA estimates. Consider checking user forums and fuel tracking apps to get a better sense of what other owners are experiencing.

How it compares

The 2021 Ram 1500 EcoDiesel’s fuel economy is very competitive. The Ford F-150 offers a hybrid powertrain, which achieves up to 25 MPG combined in 2WD configuration, but lacks the diesel’s towing power. The Chevrolet Silverado 1500 with the 3.0L Duramax diesel engine achieves similar figures, around 23 MPG combined. The real difference lies in individual driving styles and specific usage cases. The EcoDiesel is especially strong on long highway runs, while the hybrid F-150 might excel in stop-and-go city driving. All Ram fuel economy data is readily available for detailed comparisons.

Buyers cross-shopping these trucks need to carefully consider how they’ll be using the vehicle most of the time, and choose the engine that best matches their needs. Those also considering used options should consult 1500 MPG across all years.

Tips to maximize efficiency

Gentle acceleration is key to maximizing fuel economy in the EcoDiesel Ram 1500. Avoid pressing hard on the gas pedal, especially when starting from a stop. The diesel engine produces ample torque at low RPMs, so there’s no need to rev it high. Try to anticipate traffic patterns and maintain a steady pace, which lowers fuel consumption.

Proper tire inflation is another easy way to improve MPG. Check your tire pressure regularly, especially during temperature changes. Refer to the sticker on your driver’s side doorjamb for the recommended tire pressure. Under-inflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel.

Reduce unnecessary weight in the bed of your truck. Extra weight puts added strain on the engine and reduces fuel efficiency. Remove any items that are not essential, especially heavy tools or equipment. A clean and organized truck bed not only looks better, but it also contributes to better MPG. Consider removing items like tonneau covers when not in use as well.

Use cruise control on the highway to maintain a consistent speed. This can help you avoid unintentional speed fluctuations, which can waste fuel. However, be mindful of using cruise control in hilly areas, as it may cause the transmission to shift frequently. In these situations, it is best to manually control your speed.