MAN Energy Solutions has unveiled a dual-fuel version of its MAN 175D high-speed engine, capable of operating on methanol, that's scheduled to become available to the market by the end of 2026. The new variant, designated MAN 175DF-M, will be available both as newbuild and retrofit variants.MAN Energy Solutions states that the 175DF-M will be optimized for diesel-mechanical and diesel-electric propulsion to achieve the largest methanol share and best efficiency for various applications and load profiles.