CDT Clean Diesel

Clean Diesel Technologies, Inc. ("CDTI") (Nasdaq:CDTI), a cleantech emissions reduction company, announced today that it has secured two new commercial agreements to supply its emission control technology. The first, a contract worth over $320,000, will result in Clean Diesel supplying 14 high value Purifier e4® DPF systems into the Californian Off-Road Diesel Retrofit Showcase program. The second, a new commercial opportunity developed by Clean Diesel and its business partner, GMS Lubricants B.V. (GMS), opens up an exciting new market for Platinum Plus® in Northern Europe.

CARB Off-Road Diesel Retrofit Showcase Program Following the success of previous California Air Resource Board (CARB) Off-Road Diesel Retrofit Showcase program installations completed over the past two years, CDTI will be supplying an additional 14 Purifier e4 ® DPF systems. The Showcase program provides grants and vehicles to diesel emission control ("DEC") retrofit companies to develop and verify DEC solutions for the majority of off-road vehicles used by California municipalities. This multi-vehicle award will allow CDTI to install its proven Purifier e4® DPF systems on various types of off-road vehicles such as large and medium size scrapers, loaders and backhoes.

Utilizing its unique Platinum Plus® FBC technology together with its advanced controller technology, CDTI can produce a robust and compact system that has proven popular with fleet owners and maintenance personnel.

Joe Crute, CDTI's Engineering and Technology Manager, stated, "Retrofit of off-road vehicles creates a unique set of engineering challenges. Problems, such as harsh operating environment, difficult drive cycles, limited installation space, maintainability and operator 'line of site' restrictions render 'off-the-shelf' or multi-module 'active' solutions unusable for many applications without significant vehicle modifications or compromise of operator visibility."

"The FBC approach used in the Purifier e4® Systems is a filter assembly with more compact dimensions than many 'active' or 'CRT' type systems. Its regeneration temperature is also lower than conventional 'passive' systems. This allows us to install the system in low temperature applications, most times under the hood, providing clear visibility to the driver and affording much needed protection to the unit."

Clean diesel opens up new markets for Platinum Plus® in Northern Europe Clean Diesel Technologies, Inc. also announced it has entered into an agreement to supply GMS Lubricants B.V. (GMS) with its patented Platinum Plus® products for the Northern European market. GMS is one of the largest suppliers of specialty additives and lubricants to the automotive aftermarket. Through its extensive distribution channel throughout the region, GMS is ideally placed as a solutions provider to a growing opportunity in the market.

Gilbert Groot, owner and managing director of GMS, says, "...in cooperation with Clean Diesel, GMS has developed a range of fuel additive products in our JLM brand specifically targeted at the diesel passenger cars fitted with Diesel Particulate Filters (DPF's). Since their widespread introduction on passenger cars in 2005, many DPF systems are known to struggle to operate correctly during prolonged city driving."

"Based on Platinum Plus® technology,  the JLM Diesel Particulate Filter Cleaner additive, when added to the fuel, conditions and cleans DPF's to ensure reliable operation at all times."

With over 5 million cars currently fitted with DPF's, Clean Diesel expects that GMS will be first into what will become a large aftermarket opportunity providing a solution to a growing problem in Europe. Clean Diesel's patent protected, high performance fuel additive technology will ensure that GMS can fully capitalize on this unique business opportunity.

Clean Diesel Technologies, Inc. Clean Diesel Technologies (Nasdaq:CDTI) is a cleantech company providing sustainable solutions to reduce emissions, increase energy efficiency and lower the carbon intensity of on- and off-road engine applications. Clean Diesel's patented technologies and products allow manufacturers and operators to comply with increasingly strict regulatory emissions and air quality standards, while also improving fuel economy and power.

CDTI's solutions significantly reduce emissions formed by the combustion of fossil fuels and biofuels (without increasing secondary emissions such as nitrogen dioxide, NO2), including particulate matter (PM), nitrogen oxides (NOx), carbon monoxide (CO) and hydrocarbons (HC). As a result, they are effective for: OEMs, Tier 1 suppliers and retrofit providers; businesses entering the emissions control market seeking solutions and expertise; operators requiring compliant emissions solutions; fuel, biofuels and additive suppliers seeking low emissions and energy efficient products; and regulators creating public policy. Clean Diesel's solutions, therefore, are ideal for such markets as: on-road vehicles, construction, mining, agriculture, port/freight handling, locomotive, marine, and power generation.

Clean Diesel develops and manages intellectual property from original concept to full-scale commercial deployment. Building on its more than 200 granted and pending patents, its offerings include ARIS® selective catalytic reduction (SCR); the patented combination of SCR and exhaust gas recirculation (EGR); hydrocarbon injection for emissions control applications; Platinum Plus® Fuel-Borne Catalyst (FBC); the Purifier™ family of particulate filter systems; and its wire mesh filter particulate filter technologies. CDTI was founded in 1995 and is headquartered in Bridgeport, Connecticut. A wholly-owned subsidiary, Clean Diesel International, LLC is based in London, England. For more information, please visit www.cdti.com.

The Clean Diesel Technologies, Inc. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=5742

Safe Harbor Certain statements in this news release constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve known or unknown risks, including those detailed in the company's filings with the U.S. Securities and Exchange Commission, uncertainties and other factors which may cause the actual results, performance or achievements of the company, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.

CONTACT:  Clean Diesel Technologies, Inc.
          John Wynne, Vice President, Treasurer and Interim Chief 
           Financial Officer
          (203) 416-5290
          jwynne@cdti.com