There are over 6,000 fuel additives on the market. Everything from lubricity enhancers to Octane boosters. 99% of which are totally uncertified. Oxytane is a product that works. Testament to this is the fact that it is fully certified by internationally accredited fuelling agencies including Bureau Veritas and Intertek. Oxytane® carries an EN 590 certification for use in engines… This is exactly the same certification as Diesel fuel sold at the pump!