Ferox Fuel Tabs is a fuel catalyst additive that works with any type of Fuel like Gasoline, Diesel or LPG, allows you to reduce expenses by 20% while reducing pollution by 80%. They were invented by Dr. Wesley Parish in the 80's when he work as a consultant for Hercules and ATK Thiokol with their solid fuels for missiles and aerospace rockets, our products are patented and registered with the EPA in the USA RENNSLI Corp, is the company that owns the brand. the patents and its responsible for their manufacture.