Clean Diesel Introduces Europe's First Commercially Available Airless SCR Urea Dosing Units

STAMFORD, Conn.--Feb. 1, 20066, 2006--Clean Diesel Technologies, Inc. , a developer of chemical and technological solutions to reduce harmful engine emissions, announced today that it is introducing integrated urea dosing units into Europe to work with existing Selective Catalytic Reduction Systems ('SCR') - enabling the automotive sector to achieve NOx emission reductions as required under European legislation.

Clean Diesel's urea dosing unit for SCR systems represents Europe's first commercially available and fully integrated airless urea injection tool. It is based on the Company's proprietary Advanced Reagent Injector system (ARIS(R)), and is targeted at the growing retrofit and original equipment ('OEM') automotive markets across Europe. SCR has become the technology of choice for the majority of heavy duty diesel truck and bus manufacturers to ensure compliance with EURO 4/5 NOx reduction levels.

As well as marketing the dosing unit under its own license, Clean Diesel also seeks to license its technology to those supply partners within the automotive industry who are looking to meet OEM demand for newer, simpler and more efficient methods of urea injection. Clean Diesel's airless solution is just such a method, removing the need for expensive and bulky air compression and distribution equipment.

Tim Rogers, Executive Vice President of Clean Diesel International, comments: "We are delighted with the extensive interest that we have received from retrofit suppliers and OEMs who are already buying our dosing units for their Selective Catalytic Reduction systems. With this new technology we can now supply a complete urea dosing unit into the retrofit and the heavy duty Original Equipment sectors. In line with much of our enabling technology, Clean Diesel's airless dosing unit paves the way to retrofit a large number of older trucks and buses, allowing them to achieve significant reductions in NOx emissions. This in turn will provide benefits to vehicle operators and the air quality in urban areas alike.

"ARIS(R) is an extremely effective and accurate dosing technology and will work with the current "Adblue" urea and most proprietary SCR catalyst systems. Its unique return flow design avoids the need for complex air assisted injection systems, as previously used in this industry, and contributes to the overall success of SCR as a NOx reduction technology."

About Clean Diesel Technologies, Inc.

Clean Diesel Technologies, Inc. and its UK representative office, Clean Diesel International LLC, is a developer of chemical and technological solutions to reduce harmful engine emissions. Clean Diesel Technologies has patented products that reduce emissions from combustion engines while simultaneously improving fuel economy and power. Products include Platinum Plus(R) fuel borne catalysts, the Platinum Plus Purifier System and the ARIS(R) 2000 urea injection systems for selective catalytic reduction of NOx. Platinum Plus and ARIS are registered trademarks of Clean Diesel Technologies, Inc. For more information, visit CDT at www.cdti.com or contact the Company directly.