| Engine | 3.0L 6-cyl |
| Transmission | Automatic 8-spd |
| Drive | Rear-Wheel Drive |
| Fuel Type | Diesel |
| Vehicle Class | Standard Pickup Trucks 2WD |
| Trim | Diesel |
| Start-Stop | No |
| EPA Vehicle ID | 43722 |
Achieving 26 MPG combined, the 2021 Ram 1500 HFE 2WD with its 3.0L diesel engine isn’t trying to compete with Priuses. It’s proving a half-ton pickup, capable of serious work, can still manage respectable fuel consumption. This isn’t your dad’s gas-guzzling work truck; it’s a carefully engineered machine designed for those who need capability and efficiency, a balance often sought but rarely achieved this well in the truck segment.
City and highway performance
The EPA estimates 23 MPG in the city and a surprising 33 MPG on the highway. The highway figure is where the HFE really shines. The EcoDiesel engine, coupled with the smooth-shifting 8-speed automatic transmission, allows for relaxed cruising at highway speeds without excessive fuel consumption. This makes it an ideal choice for drivers who frequently undertake long-distance hauls or commutes where highway mileage dominates. In urban environments, the stop-and-go traffic will, naturally, reduce fuel economy, though even then, the HFE’s efficiency is a clear advantage over V8-powered counterparts.
Annual fuel cost
The EPA calculates the annual fuel cost for the 2021 Ram 1500 HFE at $2,150. This figure is based on driving 15,000 miles per year and using national average fuel prices. The EcoDiesel engine, however, requires diesel fuel, which often carries a price premium over gasoline. Drivers should consider local diesel prices when evaluating the true cost of ownership. If you consistently drive more or less than 15,000 miles annually, your actual fuel costs will vary accordingly, but $2,150 provides a solid baseline for comparison against other trucks and SUVs.
Real-world expectations
While the EPA provides a standardized testing methodology, real-world fuel economy can vary based on several factors. Driving style, load, and environmental conditions all play an important role. Aggressive acceleration, heavy braking, and carrying heavy loads will all negatively impact fuel efficiency. The HFE trim is optimized for efficiency, meaning prioritizing smooth driving habits will yield the best results. Owners who treat it like a sports car will be disappointed. However, drivers who adopt a gentler approach can often meet, or even exceed, the EPA estimates, especially on long highway trips.
How it compares
Compared to other full-size pickups, the 2021 Ram 1500 HFE’s fuel economy is notably strong. A comparable gasoline V6 powered Ram 1500 might only achieve around 22 MPG combined. The Ford F-150 with its PowerBoost hybrid powertrain can achieve impressive numbers around 25 MPG combined, but it carries a higher initial price tag. Even smaller mid-size trucks, like the Toyota Tacoma, often struggle to match the HFE’s highway fuel economy. To see 1500 MPG across all years, you’ll see that the HFE stands out. These are important considerations for buyers who prioritize fuel costs without sacrificing truck capability.
Tips to maximize efficiency
The EcoDiesel engine benefits significantly from gentle acceleration. Avoid aggressive launches and harsh braking. Let the engine build power smoothly to maintain optimal fuel consumption. Being mindful of your right foot can save you a surprisingly large amount of fuel over time.
Proper tire inflation is essential for maximizing fuel efficiency. Check your tire pressure regularly and ensure it matches the recommended levels specified on the doorjamb sticker. Underinflated tires increase rolling resistance and reduce fuel economy, impacting the HFE’s ability to deliver those impressive highway figures.
Remove unnecessary weight from the bed of your truck. Every extra pound adds to the engine’s workload, resulting in decreased fuel efficiency. Clearing out tools, equipment, and debris can significantly improve your MPG, particularly in city driving. The HFE is designed for efficiency, but it can’t overcome the laws of physics.
Plan your trips efficiently to minimize stop-and-go driving. Idling consumes fuel without covering any distance. Mapping out routes that avoid congested areas and reduce the number of stops will improve your fuel economy, particularly in urban environments. Consider using cruise control on the highway to maintain a consistent speed and optimize fuel consumption.
Regular maintenance is critical for optimal fuel efficiency. Ensure your engine air filter is clean, your engine oil is fresh, and your truck is properly maintained according to the manufacturer’s recommendations. A well-maintained engine operates more efficiently, leading to better fuel economy and lower overall costs. For all all Ram fuel economy data, remember that maintenance matters.