Employment Agreement dated September 23, 2003 between Tim Rogers and the Company (incorporated by reference to Exhibit10(x) to Annual Report on Form 10-K filed on March 30, 2007) and letter dated May 3, 2004

Clean Diesel Technologies

Exhibit 10(n)

Clean Diesel Technologies, Inc.

300 Atlantic Street, Suite 702

Stamford, CT  06901

Tel:   ###-###-####

Fax:   ###-###-####

Please reply to:  UK Office

Tel: +44 1208 851213

Mr. Tim Rogers Esq.

98 Sutherland Avenue,

Biggin Hill

Kent

TN16 3HH

May 3, 2004

Dear Mr. Rogers,

Following a full review of the International business, I write to approve the following changes with respect to your employment with this company.

You will from immediate effect open up a UK representative office in London to service the needs of Clean Diesel Technologies’ International operations from Europe and Asia.

Furthermore in accordance with the agreed interim business plan, we will move to create a subsidiary in the UK where you will be appointed Managing Director additionally to you being V-P International.  We ask you to continue with the planning process, with the final Business Plan for being ready for adoption by the end of the year.

You will continue to report to the Chief Executive Officer.

Your salary remains at $225,000 but in recognition of the recent currency rate changes your salary will now be payable in GBP fixed at £133,000 per annum.

To reflect this added responsibility your employment as set out in your original basis of 6 (six) months salary notice either way.

All other terms and conditions of employment as set out in your original offer letter of 23rd September 2003 remain.

On behalf of the Board of Directors we thank you for your contribution and look forward to a successful 2004.

	Yours Sincerely,
	/s/  Jeremy Peter-Hoblyn
	Chief Executive Officer

Accepted:  /s/ Tim Rogers                                    

                          Tim Rogers