UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 27, 2010

CLEAN DIESEL TECHNOLOGIES, INC.

(Exact name of registrant as specified in its charter)

Delaware	001-33710	06-1393453
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

Suite 1100, 10 Middle Street, Bridgeport, CT	06604
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number including area code: (203) 416-5290

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

ý   Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o   Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o   Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events.

On September 27, 2010 the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits

Exhibit	Description
99.1	Press Release dated September 27, 2010

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SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Diesel Technologies, Inc.
By:	/s/ John B. Wynne, Jr.
	John B. Wynne, Jr.
	Its:	Interim Chief Financial Officer, Vice President and Treasurer

Dated: September 27, 2010

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Index to Exhibits

Exhibit	Description
99.1	Press Release dated September 27, 2010

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