“Petrovöll Engine Flush for petrol or diesel engines quickly and efficiently dissolves varnish and removes sludge and any other contaminations from vital motors, hydraulic systems, and gearboxes. It cleans engine internals, neutralizes acids, and provides friction‐proofing by removing deposits and neutralizing acids. Additionally, it prevents sticking internal engine components and neutralizes crankcase acids, offering anti‐wear protection. It ensures oil flow to critical moving parts by cleaning all pathways.