Volvo Trucks has introduced a new in-house developed 13-liter engine platform, offering two variants — the D13 diesel and G13 gas — positioned as the most fuel-efficient combustion powertrains the company has produced. Both engines are designed around fuel flexibility from the outset, with compatibility extending to biodiesel, HVO, biogas, bio-LNG, and future green hydrogen applications. The D13 delivers between 380 and 560 horsepower with torque ranging from 1,800 to 2,900 Nm.