Petrol Ofisi Maximus SUPER DIESEL 20W-50, in a 4-liter container, is a premium motor oil designed for diesel engines operating under the most demanding conditions. Formulated with highly refined mineral oils, it provides reliable protection for commercial vehicles, trucks, buses, construction machinery, and generators with large diesel engines, including those with turbochargers and superchargers. Maximus SUPER DIESEL prevents pressure loss and foaming in lubrication systems, facilitates cold starts, and ensures effective protection at high temperatures, while also reducing maintenance costs due to extended oil change intervals.