Extensive Chassis dynamometer trials with emissions equipment have shown that enhancement improves the NOx by over 45%, taking a Euro 4 vehicle to Euro 5 level emissions. Comparative testing at Millbrook Proving Ground showed a transformation in performance and economy due to the Alchemist system as witnessed by many independent observers. The GUARANTEE of 20% fuel saving is easily achievable EH Tech is a new start up company, but is actually the result of 9 years work by its Founder Gary McMahon. Its initial product offering will be a secondary gaseous injection system designed for HGV's which enhances the combustion of diesel engines generating real world efficiency improvements of between 25-35%. It should be noted that this is achieved through ENHANCEMENT not the replacement of diesel with a substitute fuel. As such the technology and the theorem behind it represent a paradigm shift in diesel engine fuelling. The benefits of the technology are real world fuel savings of between 20-30% and a huge reduction in key diesel emissions including PM's and NOx's.