The vessel, MACK ATTACK, launched last June, was commissioned by Mack Boring & Parts Co. — the U.S. distributor of Scania marine diesel engines — to demonstrate the reliability and performance of Scania’s most powerful pleasure craft-certified V8 engines. During the trials, the twin Scania engines ran on RD99 renewable diesel — a clean-burning fuel made from 99% renewable feedstocks such as used cooking oil.