Best Diesel Trucks for Fuel Economy 2025
If you’re looking for the best diesel trucks for fuel economy in 2025, you’ve come to the right place. These trucks, including the Chevy Colorado, Jeep Gladiator, and GMC Canyon Diesel, offer impressive MPG while maintaining towing power and reliability.
👉 For a complete overview of top models, check Best Diesel Truck 2025.
Why Fuel Economy Matters in Diesel Trucks
Fuel costs are one of the biggest long-term expenses for truck owners. In addition, better MPG ratings mean fewer stops at the pump, reduced emissions, and more money saved over the truck’s lifetime. Therefore, choosing a diesel truck with strong fuel efficiency is not only eco-friendly but also cost-effective.

Top Diesel Trucks for Fuel Economy in 2025
Here are the top picks for fuel-efficient diesel trucks this year:
1. Chevrolet Colorado Diesel (2.8L Duramax)
- MPG: ~20 city / 28 highway (best-in-class efficiency)
- Towing Capacity: 7,700 lbs
- Why it’s great: Compact, efficient, and perfect for drivers who value MPG over maximum towing power.
👉 For official fuel ratings, check Chevrolet Colorado Diesel page.
2. Jeep Gladiator EcoDiesel (3.0L)
- MPG: ~22 city / 28 highway
- Towing Capacity: 6,500 lbs
- Why it’s great: Offers off-road capability with top fuel efficiency in its class.
👉 [İç link: Best Diesel Truck for Towing]
👉 For EPA data, see EPA Fuel Economy – Diesel Trucks.

3. GMC Canyon Diesel (2.8L Duramax)
- MPG: ~20 city / 28 highway
- Towing Capacity: 7,700 lbs
- Why it’s great: Same efficient powertrain as the Colorado, but with GMC’s premium design.
👉 For more details on engine comparisons, see Best Diesel Engines for Trucks: Duramax vs Cummins.
4. Ford F-150 PowerBoost Hybrid (Diesel Alternative)
- MPG: Up to 25 mpg combined
- Why it’s great: Not a traditional diesel, but a hybrid alternative for those who still want fuel savings with strong performance.
👉 For budget-friendly options, check out Best Used Diesel Trucks Under $20k.
👉 Learn more at Ford F-150 PowerBoost official page.
Fuel Economy vs. Towing Power
It’s important to remember that trucks with higher MPG usually sacrifice some towing capacity. For example, while the Chevy Colorado Diesel and Jeep Gladiator EcoDiesel achieve nearly 28 mpg highway, they cannot match the towing strength of heavy-duty trucks like the Ram 3500. As a result, buyers must decide whether fuel savings or maximum pulling power is more important.

Which Diesel Truck Should You Choose for Fuel Economy?
- Choose the Chevy Colorado Diesel if you want the most fuel-efficient midsize truck.
- Pick the Jeep Gladiator EcoDiesel if you want fuel economy with off-road capability.
- Select the GMC Canyon Diesel if you prefer a premium midsize option.
- Consider the Ford F-150 PowerBoost Hybrid if fuel efficiency matters most, even if it’s not a pure diesel.
👉 For tips on saving fuel, see Best Diesel Truck for Fuel Economy.
Conclusion
The best diesel truck for fuel economy in 2025 depends on your driving style. The Chevy Colorado and GMC Canyon dominate for city and highway efficiency, while the Jeep Gladiator offers off-road adventure with strong MPG. Meanwhile, the Ford F-150 PowerBoost stands out as a hybrid alternative for those who prioritize fuel savings.
No matter your choice, these trucks prove that in 2025 you don’t have to sacrifice efficiency for performance.
👉 For heavy-duty towing comparisons, check Best Half-Ton Diesel Trucks 2025.