DWD2 Metal Conditioner penetrates the pores of the metal and acts as a cushion between moving metal parts in your engine. Our nano-technology are stable Synthesized Hydrocarbons. DWD2 motor oil additive has the ability to penetrate the surface cracks of the metal . Normal motor oils can only withstand a limited amount of pressure and heat. Add Metal Conditioner to your engine and help reduce heat and friction and allow your engine to run at peak efficiency!