Specifically formulated for gasoline and propane engines, Filtroil’s Oil Conditioners enhances oxidation resistance and provides maximum protection against wear, rust, and corrosion. This formula creates a lubricating film that coats and penetrates metal surfaces to sustain smooth and quiet engine operation. Filtroil’s Engine and Diesel Engine Oil Conditioners are multipurpose super lubricants designed for everything from home use to heavy industrial fleet applications.