MAN Diesel & Turbo reports that its Part-Load Optimisation initiative has generated significant fuel savings in the 180 orders it has received since its introduction. Part-Load Optimisation is a tuning method that optimises fuel consumption during the part-load operation of four-stroke, small-bore MAN auxiliary engines.. In this video, you will see MAN Diesel and Turbo Factories, also you can see Big Ship engine in this video. Subscribe. MAN Diesel & Turbo SE, based in Augsburg, Germany, is the world's lead-ing provider of large-bore diesel and gas engines and turbomachinery. The company employs around 15,000 staff at more than 100 international sites, primarily in Germany, Denmark, France, Switzerland, the Czech Republic,.