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Hybrid engines are the way trucks get the best fuel efficiency, right? Well. the most efficient full-size truck doesn’t have a hybrid engine. It uses diesel power to maintain the best fuel economy in the class. 

What is the most fuel-efficient full-size truck?

The most fuel-efficient full-size truck is the 2024 Chevrolet Silverado 1500 with the 3.0-liter V6 diesel engine. It beats the 2024 Ford F-150 Hybrid, the 2024 Toyota Tundra Hybrid, Ram 1500 mild hybrid. 

The Duramax Silverado gets an EPA-estimated 23 mpg in the city, up to 29 mpg on the highway, and 26 mpg combined. 

With the Ford F-150 PowerBoost Hybrid, you can expect to get about 25 mpg in the city, up to 26 mpg on the highway, and about 24 mpg combined. 

The Toyota Tundra i-Force Max gets about 18 mpg in the city, up to 22 mpg in the city, and roughly 20 mpg combined. 

The 2024 Chevy Silverado 1500 fording a stream
2024 Chevy Silverado 1500 | Chevrolet

Last but not least, the Ram 1500 EcoBoost gets about 20 mpg in the city, up to 25 mpg on the highway, and 23 mpg combined. 

You would expect the most fuel-efficient full-size truck to be a hybrid, but keeping the diesel engine sets the Chevy Silverado ahead. 

The Duramax Silverado can travel about 624 miles on a single tank. It costs about $96 to fill the 24-gallon tank. It has an average annual fuel cost of $2,500. The Ford F-150 Lightning can travel about 320 miles on a single charge. 

Also, this engine provides 305 hp and 420 lb-ft of torque. It’s paired with a 10-speed automatic transmission. When properly equipped it can tow up to 13,300 lbs and carry a payload of up to 2,260 lbs. 

Other engines in the Silverado 1500 lineup include the standard turbocharged 2.7-liter four-cylinder unit with 310 hp and 430 lb-ft of torque. 

The 5.3-liter V8 engine cranks out 355 hp and 383 lb-ft of torque. Upgrade to the 6.2-liter 8 for 420 hp and 460 lb-ft of torque. 

As gas prices continue to rise, trucks have the risk of continuing to be plagued as gas guzzlers. Considering fuel efficiency may be a more important factor when buying your next truck.