What type of diesel do yachts use?

Yachts typically use marine diesel fuel, specifically either diesel fuel type MGO (Marine Gas Oil) or MDO (Marine Diesel Oil). MGO is a lighter, low-sulfur fuel suitable for various marine applications, while MDO is a blend of marine gas oil and heavy fuel oil, often used in larger vessels. The choice between them depends on the yacht's engine specifications and regulatory requirements. Additionally, some yachts may utilize ultra-low sulfur diesel to comply with environmental regulations.