SCHEDULE 14A
                                 (RULE 14a-101)
                     INFORMATION REQUIRED IN PROXY STATEMENT
                            SCHEDULE 14A INFORMATION
           PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES
                   EXCHANGE ACT OF 1934 (AMENDMENT NO.  N/A )

Filed by the registrant [X]
Filed by a party other than the registrant [ ]
Check the appropriate box:                          [ ] Confidential, for Use of
   [X] Preliminary proxy statement                      the Commission Only (as
   [ ] Definitive proxy statement                       permitted by Rule
   [ ] Definitive additional materials                  14a-6(e)(2)
   [ ] Soliciting material pursuant to Rule 14a-11(c) or Rule 14a-12

                        Clean Diesel Technologies, Inc.
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                (Name of Registrant as Specified in its Charter)

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          (Name of Person(s) Filing Proxy Statement, if Other Than Registrant)

Payment of filing fee (Check the appropriate box):
     [X]  No fee required
     [ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and
          0-11.

     (1)  Title of each class of securities to which transaction applies:
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     (2)  Aggregate number of securities to which transactions applies:

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     (3)  Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the
          filing fee is calculated and state how it was determined):

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     (4)  Proposed maximum aggregate value of transaction:

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     [ ]  Fee paid previously with preliminary materials.

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     [ ]  Check  box if any part of the fee is offset as provided by Exchange
          Act Rule 0-11(a)(2) and identify the filing for which the offsetting
          fee was paid previously. Identify the previous filing by registration
          statement number, or the form or schedule and the date of its filing.

     (1)  Amount previously paid:

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     (4)  Date Filed:

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                         Clean Diesel Technologies, Inc.
                               300 Atlantic Street
                                Stamford CT 06901


March  25,  2003


Dear  Shareholder:

Enclosed  are  materials  relating  to the Company's request for stockholders to
approve  increasing  Clean  Diesel  Technologies  authorized  common  stock from
15,000,000  to  30,000,000  shares.  The  Company currently has only 1.1 million
shares  of  authorized  common  stock  available  for  issue.

The  Directors  of  the  Company have determined that additional common stock is
needed  for  sales  to  investors  to  provide  funds  for  Clean  Diesel's
commercialization  activities  and  general operating purposes.  The Company may
also  consider strategic acquisitions that would assist the commercialization of
the  Companies'  technologies.

The enclosed documents are in the form of a consent solicitation and we ask that
you sign and date the consent form and return in it to the Transfer Agent in the
enclosed  envelope.  You may also fax your consent form to the Company Secretary
at  203-323-0461.  Please  be  sure to date your consent form so that it will be
effective.

If you would like additional information contact one of the following:

-    Jeremy Peter-Hoblyn
     (UK) 44-1208-851213

-    Derek Gray
     (London) 44-20-7487-4444

-    David Whitwell
     (US) 203-327-7050



Sincerely,


Jeremy D. Peter-Hoblyn
Chairman and CEO



                        CLEAN DIESEL TECHNOLOGIES, INC.
                         300 Atlantic Street, Suite 702
                            Stamford, CT 06901 U.S.A.
                              Tel: (203) 327-7050
                              Fax: (203) 323-0461

                 ----------------------------------------------

                 Notice of Solicitation of Stockholder Consents

                 ----------------------------------------------

To the Stockholders of Clean Diesel Technologies, Inc.:

The  enclosed  form  of  consent  (the  "Consent")  is solicited by the Board of
Directors  of  Clean  Diesel  Technologies,  Inc.,  a  Delaware corporation (the
"Company")  to  obtain  stockholder  consent  in  writing  without  a meeting to
increase  the  authorized  capital  of the Company.  The Board seeks stockholder
approval  of  an  amendment  of  the Company's certificate of incorporation (the
"Amendment")  to  increase  the authorized number of shares of common stock, par
value  $0.05,  (the  "Common")  from  15,000,000  to  30,000,000.

The  attached  Consent  Solicitation Statement describes the proposed Amendment.
As  authorized  by  Delaware  law, this solicitation of Consents is in lieu of a
meeting.  Accordingly,  there  will  be  no  meeting  of  stockholders  held  in
connection with this solicitation.  Under Delaware law the holders of at least a
majority  of  the  outstanding  Common are permitted to approve the Amendment by
written consent in lieu of a meeting provided that prompt notice of the approval
is  given  to  the  other  stockholders  of the Company.  Such action results in
approval  of  the  Amendment without the approval of the stockholders who do not
consent.

THE  BOARD  OF  DIRECTORS HAS UNANIMOUSLY APPROVED THE AMENDMENT AND UNANIMOUSLY
RECOMMENDS  THAT  YOU CONSENT TO THE INCREASE IN THE AUTHORIZED NUMBER OF SHARES
OF  COMMON.

The  record date for this solicitation is March 24, 2003. Holders of the Company
Common  at  the close of business on that date are being mailed the accompanying
Consent  Solicitation  Statement  and  Consent  and asked to sign the Consent to
approve  of the Amendment. Each stockholder is urged to complete, sign, date and
mail  the  Consent  as  promptly  as  possible  in  the  enclosed self-addressed
postage-paid  envelope.

The  date  of  this notice is March 25, 2003 and it was mailed on or about April
__,  2003.

By order of the Board of Directors

Charles  W.  Grinnell
Secretary

PLEASE  COMPLETE,  SIGN  AND  DATE  YOUR  CONSENT  AND RETURN IT IN THE ENCLOSED
POSTAGE-PAID  ENVELOPE.  PLEASE DATE YOUR CONSENT TO ENSURE IT WILL BE EFFECTIVE
AND  COUNTED.  ANY  CONSENT GIVEN MAY BE REVOKED IN WRITING AT ANY TIME PRIOR TO
THE  RECEIPT BY THE COMPANY OF UNREVOKED CONSENTS FROM THE HOLDERS OF A MAJORITY
OF  THE  COMPANY'S  OUTSTANDING  COMMON.

YOU  MAY  FAX  YOUR  SIGNED  AND  DATED  CONSENT TO THE ATTENTION OF THE COMPANY
SECRETARY  AT  THE  FAX  NUMBER  IN  THE  ABOVE  CAPTION.



                         CLEAN DIESEL TECHNOLOGIES, INC.
                         300 Atlantic Street, Suite 702
                           Stamford, CT  06901 U.S.A.
                              Tel:  (203) 327-7050
                              Fax:  (203) 323-0461

                         -------------------------------

                         Consent Solicitation Statement

                         -------------------------------

                                     GENERAL


This  Consent Solicitation Statement and the accompanying Notice of Solicitation
of  Stockholder Consents and form of Consent are being mailed in connection with
the solicitation of written Consents without a meeting by the Board of Directors
of  Clean  Diesel  Technologies,  Inc.,  a Delaware corporation (the "Company").
These  materials  pertain to the proposed amendment of the Company's certificate
of  incorporation  (the  "Amendment")  to increase the authorized capital of the
Company  by  increasing  the  authorized number of common shares, par $0.05 (the
"Common"),  from  15,000,000 to 30,000,000.  Consents are to be submitted to the
Company's  Transfer  Agent in the enclosed envelope (or may also be faxed to the
Company  Secretary  at  the  number  indicated  above)  as promptly as possible.

                SOLICITATION, VOTING AND REVOCABILITY OF CONSENTS

The Common shares are the only outstanding securities of the Company.  The Board
has fixed the record date for this solicitation as March 24, 2003.  According to
the  records of the Company's transfer agent, as of the close of business on the
record date the Company had 11,976,904 shares of common outstanding and eligible
to  vote.  Each  share  of  Common  is  entitled  to  one vote on the Amendment.

The  Amendment  requires  the  affirmative vote of a majority of the outstanding
Common.  Brokers  may  return  a  Consent for shares held in "street" or nominee
name  in favor of the Amendment absent contrary instructions from the beneficial
owner  of  such  shares.  Abstentions  (including  failures  to  return  written
Consents)  and  broker  nonvotes  have  the  same  effect  as  negative  votes.

Delaware  law  requires  that  each  Consent  have  a  dated  signature  of each
stockholder who signs the Consent.  An undated Consent cannot be used.  Also, no
Consent  shall  be  effective  unless Consents from holders of a majority of the
outstanding  Common  are  received  within the 60 day period following the first
dated  consent received with respect to this proposal (the "Consent Solicitation
Period").

Solicitation will be made primarily through the use of the mail.  Members of the
Board  and  Executive Officers of the Company may solicit stockholders' consents
directly  by  telephone  or  facsimile.  The  Company shall bear the cost of any
consent  solicitation.

The Company has asked brokers, and other custodians, nominees and fiduciaries to
forward  these  Consent  solicitation  materials to the beneficial owners of the
Common held of record by such persons and will reimburse such persons for out of
pocket  expenses  incurred  in  forwarding  such  materials.



Any  stockholder  executing  a  Consent  has  the power to revoke it at any time
before  the  earlier  of  (i)  the  date on which at least the minimum number of
shares  have consented in order to approve the Amendment, or (ii) the end of the
Consent  Solicitation  Period,  by  delivering written notice of such revocation
dated  after  the  date  of  the Consent being revoked to the Company's Transfer
Agent  or  faxed  to  the  Company  Secretary  at  the  number  given  above.

A  stockholders  list  as  of the record date is available for inspection at the
office  of the Company set out above and will be available until the termination
of  the  Consent  Solicitation  Period.

If  the  holders  of  a majority of the outstanding Common as of the record date
approve  of the Amendment, the Company intends to promptly amend the certificate
of  incorporation  in  conformity  with the text below and file a certificate of
amendment  with  the  Secretary  of  State  of Delaware.  The Company shall also
promptly  notify  the stockholders who have not consented to the action taken as
required  by  Delaware  law.

The  Board  of Directors has, moreover, reserved the power and authority, in its
discretion, to not file the certificate of amendment notwithstanding stockholder
approval,  if  it  shall  determine that refraining from filing and amending the
certificate is ultimately in the best interests of the stockholders, although no
state  of  facts  now exists which would suggest that the Directors may consider
not  filing  and  amending  the  certificate.

                                  THE AMENDMENT

Requirement for Increase in Authorized Common

The Company has now authorized capital under its certificate of incorporation of
15,000,000  shares  of  Common  and  100,000  shares  of  preferred  stock  the
("Preferred").  No  preferred stock is outstanding.  There are 11,976,904 shares
of  Common issued and outstanding and 1,920,888 reserved for outstanding options
and  warrants,  leaving  only  1,102,208  shares  for  future  issue.

The  directors  have  determined  that  additional Common is needed for sales to
investors  to  provide funds for the Company's commercialization and development
activities  and  general  corporate  purposes,  and  possibly  for  other  uses,
including  for  potential  merger and acquisition activity and for provision for
use  as  compensation  or  incentives  for  directors,  officers  and employees.

The  Company's  working  capital  position  is such that the Company is actively
seeking  additional sources of working capital.  Although the Company now has no
commitments  for  the  issuance  of securities, except pursuant to the Company's
equity  incentive  plan  and  outstanding  warrants,  the Company expects in the
future  to  conduct  discussions  with  third  parties with respect to potential
investments.  If  any  sales  of  securities  are  effected,  the  terms of such
securities,  including  dividend  or  interest  rates, conversion prices, voting
rights,  redemption  prices,  maturity  dates,  and  similar  matters  will  be
determined by the Board of Directors.  Among other things, the Company may issue
and sell unregistered Common in private transactions.  Such transactions may not
be  available  on  terms  favorable  to  the  Company,  or  at  all.

Form  of  Amendment  of  Certificate



The  Board  of  Directors of the Company resolved on March 13, 2003 to adopt the
following  resolution  amending the certificate of incorporation of the Company,
subject  to  the  approval  of  a majority of the outstanding Common and further
resolved  that  the  amendment  is  advisable  and  should be recommended to the
stockholders  for  their  approval.

     Resolved,  that  Article  4  of  the  certificate  of  incorporation of the
     corporation  be,  and it hereby is, amended by revoking in its entirety the
     first  paragraph  of  said Article 4 and the following being substituted in
     its  place,  as  follows:




"4.  The  corporation  shall  have authority to issue the total Number of Thirty
     Million  One Hundred Thousand (30,100,000) Shares of the par value of $0.05
     per  share, amounting in the aggregate to One Million Five Hundred Thousand
     Dollars ($1,505,000), and of such shares, Thirty Million (30,000,000) shall
     be  designated  as common stock and One Hundred Thousand (100,000) shall be
     designated  as  preferred  stock."

Dilution

The  effect  of  the issuance of additional Common, directly or upon exercise of
warrants or options, if subsequently issued, has potentially dilutive effects on
stockholders.  The issuance of Common or Preferred (or even the potential issue)
may have a depressive effect on the market price of the Company's securities and
may  dilute  the  voting  power  of  the  outstanding Common.  Also the issue of
additional  shares  of  Common  or Preferred, or options or warrants to purchase
such shares, would have a dilutive effect on stockholders' equity in the Company
and  reduce  stockholders'  rights  to  the  net  assets  of  the  Company  upon
dissolution.

Anti-Takeover  Effect

Although  the  Amendment  is  not motivated by anti-takeover concerns and is not
considered  by  the  Board  to  be an anti-takeover measure, the availability of
additional  authorized  Common  could  be  utilized  as  such.  In  addition  to
financing purposes, the Company could also issue shares of Common or a series of
Preferred  that may, depending on the amount of such Common or the terms of such
series  of  Preferred,  make  more  difficult or discourage an attempt to obtain
control  of  the  Company  by  means of a merger, tender offer, proxy content or
other  means.  The  Board of Directors, might when it is determined to be in the
best  interest  of  the  stockholders, create voting, including class voting, or
other  impediments  to  obtaining  control  of  the  Company.

Preemptive  and  Dissenting  Rights

Under  Delaware law, holders of the outstanding Common have no preemptive rights
to purchase or to subscribe to the additional shares authorized by the Amendment
and  have  no  dissenting  or  appraisal  rights  with  respect  to the proposed
Amendment.

THE  FOREGOING  PROPOSAL  REQUIRES  THE  AFFIRMATIVE  VOTE  OF A MAJORITY OF THE
OUTSTANDING  COMMON  FOR APPROVAL.  THE BOARD RECOMMENDS THAT YOU VOTE "FOR" THE
PROPOSAL  ON  YOUR  CONSENT.



            PRINCIPAL STOCKHOLDERS AND STOCK OWNERSHIP OF MANAGEMENT

The following table sets forth information regarding the beneficial ownership of
Common  as  of  March  24,  2003  by (i) each person known to the Company to own
beneficially  more  than  three  percent  of  the  outstanding Common; (ii) each
director  of  the  Company;  the Executive Officers of the Company; and (iv) all
directors  and  officers  as  a  group.



Name and Address (1)                No. of Shares (2)(3)  Percentage (4)
----------------------------------  --------------------  --------------
                                                    
Beneficial Owners

Fuel-Tech N.V. (2)(5)                          1,849,972           15.4%
Waltham Forest Friendly Society                1,062,598            8.9%
Positive Securities Limited                    1,100,554            9.2%
Cadogen Settled Estates
   Shareholding Company Limited                1,059,453            8.8%
Ruffer Investment Management Ltd.                700,000            5.8%
J.A. Kanis (2)                                   414,400            3.5%

Management Owners

John A. de Havilland (2)                         155,296            1.3%
Derek R. Gray (2)                                405,835            3.4%
Charles W. Grinnell (2)                          131,788            1.1%
Jeremy D. Peter-Hoblyn (2)                       371,619            3.1%
James M. Valentine (2)                           334,356            2.8%
David W. Whitwell (2)                            165,695            1.4%

All Directors and Officers as
   A Group (2)


---------------
(1)The  address  of  Fuel-Tech  N.V.  is  Castorweg  22-24, Curacao, Netherlands
Antilles.  The  address  of  the  other  beneficial owners is c/o S G Associates
Limited,  45  Queen  Anne  Street,  London  W1G  9JF  U.K.  The  address  of the
management owners is c/o Clean Diesel Technologies, Inc. Suite 702, 300 Atlantic
Street,  Stamford,  CT  06901  USA.  The directors of the Company are Messrs. de
Havilland,  Gray,  Grinnell,  Peter-Hoblyn  and  Valentine.  The officers of the
Company  are  Mr.  Peter-Hoblyn,  Chairman  and  Chief  Executive  Officer;  Mr.
Valentine,  President and Chief Operating Officer; Mr. Whitwell, Vice President,
Treasurer and Chief Financial Officer, and Mr. Grinnell, Vice President, General
Counsel  and  Secretary.

(2)  In  addition  to  shares issued and outstanding, includes shares subject to
options  or  warrants  exercisable  within  60  days  for Fuel-Tech N.V., 25,000
shares;  Mr.  J.A.  Kanis,  10,000 shares; Mr. de Havilland, 133,817 shares; Mr.
Gray,  146,008  shares; Mr. Peter-Hoblyn, 321,366 shares; Mr. Valentine, 314,166
shares;  Mr. Whitwell, 153,333 shares; Mr. Grinnell, 116,584 shares; and for all
directors  and  officers  as  a  group,  1,185,274 shares. The amount for Mr. de
Havilland  and  for  directors  and  officers as a group does not include 23,009
shares  owned  by  his  adult  children  as  to  which  he  disclaims beneficial
ownership.



(3)  To  the  knowledge  of  the  Company  the  owners  of  all shares hold sole
beneficial  ownership  and  investment  power  over  the  shares  reported.

(4)  The  percentages  are  percentages  of  outstanding  stock  and  have  been
calculated  by  including warrants and options exercisable within 60 days within
the  amount of outstanding shares for directors and officers individually and as
a  group.  In  addition  3%  rather  than 5% is presented in accordance with the
requirements  of  U.K.  practice,  the  Company  being listed on the Alternative
Investment  Market  of  the  London  Stock  Exchange.

(5)  The  shares  indicated for Fuel-Tech N.V. include shares held by its wholly
owned  subsidiary, Platinum Plus, Inc. Mr. de Havilland is a director of Cadogan
Settled  Estates Shareholding Company Limited and disclaims beneficial ownership
of  shares  held  by  that  Company.

MARCH 25, 2003


-----------------------------
CHARLES W. GRINNELL
SECRETARY



CONSENT                                                                  CONSENT


                           Solicited by the Directors

                         CLEAN DIESEL TECHNOLOGIES, INC.

                     Consent to Increase Authorized Capital


Please  return your consent form promptly to the Company's Transfer Agent in the
envelope  provided. Or, you may fax the form of consent to the Company Secretary
at  the  number  set  out  in  the  accompanying  Notice  of  Solicitation.

           THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THIS PROPOSAL

     Proposal  to  amend  the  certificate  of  incorporation  of the Company to
     increase  the  amount  of  authorized  common  shares  from  15,000,000  to
     30,000,000.


     Vote FOR                    Vote AGAINST                        ABSTAIN
       [ ]                           [ ]                               [ ]

                          (Please sign and date below)


                                                     Dated:               , 2003
                                                            -------------


                                              ----------------------------------
                                              (Signature of Stockholder)


                                              ----------------------------------
                                              (Signature of Stockholder)


If  signing  as  attorney,  executor, administrator, trustee or guardian, please
give  full  title  as  such, and, if signing for a corporation, give your title.
When  shares  are  in  the  names  of  more  than  one person, each should sign.


        PLEASE INSERT DATE ABOVE SO THAT THIS CONSENT MAY BE EFFECTIVE.