FUCHS Silkolene's PRO BOOST is an octane booster designed to improve engine performance. Produced using a unique blend of low toxicity organic chemicals, PRO BOOST reduces upper cylinder wear without leaving deposits in the combustion chamber. As well as enhancing fuel combustion efficiency, PRO BOOST reduces engine knocking and cleans fuel systems, providing smoother running and increased power output for both carburetor and injection systems. PRO BOOST is fully compatible with all petrol and does not damage fuel hoses or filters.