Fuel Efficiency The path to efficiency is paved with innovation. At Volvo, fuel efficiency is a vital part of our commitment to your business and, ultimately, to the planet we all share. That’s why we’re constantly challenging ourselves to find new and improved ways to make Volvo trucks the most fuel-efficient trucks on the road. Fuel efficiency is more than a single feature; it’s a combination of customized solutions working together in perfect harmony. The result is fuel efficiency custom built to cut your operating costs.