Long-term protection against rust and corrosion Highly reliable, easy to use To secure long-term preservation of all 2 and 4-stroke petrol and diesel engines for example cars, trucks and boat engines as well as motorcycles, lawnmowers, snow clearing equipment, emergency generators, pumps, etc Engine Internal Preservative is a combination of high-quality corrosion inhibitors formulated for the long-term preservation of all two- and four-stroke petrol and diesel engines