Diesel

Making Ram’s 6.7-liter Cummins turbo-diesel engine available in the Ram 2500 Power Wagon only increases the truck’s appeal, bringing amazing torque, smooth operation and surprising relative efficiency that improve the truck’s driving characteristics.

In Cars.com testing, a 2027 Ram 2500 Power Wagon with the 6.7-liter Cummins turbo-diesel returned 19 mpg over 711 miles of mixed driving and up to 20.6 mpg on sustained highway stretches.

Here’s a look at the best pickup trucks for getting more done with less fuel — be it gasoline, diesel or electricity — sorted by truck size.

The 2027 GMC Sierra 1500 has been revealed with new styling, two all-new V-8 engines and even more screens.

A new turbo-diesel 6.7-liter Cummins six-cylinder engine gives the Power Wagon over 1,000 pounds-feet of torque, more than enough to get the truck out of dicey off-road situations.

There are so many pickup trucks to choose from in the American marketplace, picking just one when it comes time to buy can be a seriously difficult choice. That’s why we have the Cars.com Top Picks for 2026 to help you choose a great truck to fit exactly what you want to do.

If you’re in the market for a new pickup truck, you may be wondering if you should get a gas engine or a diesel engine since there are significant differences between the two.

Here’s a look at the best pickup trucks for getting more done with less fuel — be it gasoline, diesel or electricity — sorted by truck size.

A revised Cummins turbo-diesel six-cylinder engine makes the refreshed 2025 Ram 2500 one of the slickest-driving heavy-duty trucks on the market.

For 2025, a new 6.7-liter Cummins turbo-diesel six-cylinder makes a little more horsepower than its predecessor in the Ram 2500 and 3500 Heavy Duty trucks.