直ちょく留りゅう軽けい油ゆMeaningsNoun1. straight diesel oilKanji used直straight留hold in place軽lightweight油oilComposed of直ちょくdirect; night duty; night watch; being on duty (in a factory); shiftNo-adjective留りゅうstationary pointNoun軽けい油ゆdiesel oil; diesel fuel; gas oil; light oilNoun