If you’re looking for a pickup that can tow more than 7,500 pounds with a trailer — and top 30 mpg without one — you’ve come to the right place. Some of the best fuel-efficient trucks can do exactly that.

Now, there is one minor hitch: You need a diesel engine for the very highest combination of EPA grades and tow ratings. The good news is that today’s Truck-makers have also followed a variety of other strategies for building greener pickups. So you have plenty of gas-powered alternatives if the diesel lifestyle isn’t for you. This includes trucks from different size classes with different-sized engines in both turbocharged and naturally aspirated configurations. Of course, all of these versatile pickups have their share of modern-day amenities, too. Here are the best fuel-efficient trucks.