UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC  20549

________________

SCHEDULE 13G/A

Under the Securities Exchange Act of 1934

(Amendment No. 2)*

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[     ]        Rule 13d-1 (b)

[ X ]        Rule 13d-1(c)

[     ]        Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

(a) Includes 410,255 shares beneficially owned by Kanis S.A.  John A. Kanis is the sole stockholder of Kanis S.A. and controls the voting and investment decisions of Kanis S.A., accordingly, John A. Kanis may be deemed to beneficially own all shares of common stock beneficially owned by Kanis S.A.

(a) Includes warrants to acquire 143,707 shares of common stock.  Does not include warrants to acquire 60,000 shares of common stock that are not currently exercisable.  Does not include 250,000 shares of common stock issuable upon conversion of convertible note due in 2016. John A. Kanis is the sole stockholder of Kanis S.A. and controls the voting and investment decisions of Kanis S.A., accordingly, John A. Kanis may be deemed to share beneficial ownership of all shares of common stock beneficially owned by Kanis S.A.

Item 1(a).        Name of Issuer:

            Clean Diesel Technologies, Inc. 

Item 1(b).        Address of Issuer's Principal Executive Offices:

            4567 Telephone Road, Suite 100, Ventura, CA 93003.

Item 2(a).        Name of Person Filing:

            John A. Kanis
            Kanis S.A.

Item 2(b).        Address of Principal Business Office or, if none, Residence:

            For John A. Kanis: Rue de la Vallee 41, B-1000, Brussels, Belgium

            For Kanis S.A.: 233-237 Old Marylebone Road, London NW1 5QT, England.

Item 2(c).        Citizenship:

            John A. Kanis is a British Citizen.
            Kanis S.A. is a British Virgin Islands Corporation

Item 2(d).        Title of Class of Securities:

            Common Stock, par value $0.01 per share    

Item 2(e).        CUSIP Number:

            18449C 401   

Item 3.              Filing Pursuant to Rule 13d-1(b), or 13d-2(b) or (c):

            Not Applicable

Item 4.            Ownership:

            For John A. Kanis:

            (a)        Amount beneficially owned:  413,722 ^(a) shares

(b)       Percent of class:  5.6% 

            (c)        Number of shares as to which such person has:

                        (i)         Sole power to vote or to direct the vote   3,467 

(ii)        Shared power to vote or to direct the vote  410,255 ^(a)
(iii)       Sole power to dispose or to direct the disposition of  3,467
(iv)       Shared power to dispose or to direct the disposition of 410,255 ^(a)

_____
(a) Includes 410,255 shares beneficially owned by Kanis S.A.  John A. Kanis is the sole stockholder of Kanis S.A. and controls the voting and investment decisions of Kanis S.A., accordingly, John A. Kanis may be deemed to beneficially own all shares of common stock beneficially owned by Kanis S.A.

            For Kanis S.A.:

            (a)        Amount beneficially owned:  410,255 ^(a) shares

(b)       Percent of class:  5.5% 

            (c)        Number of shares as to which such person has:

                        (i)         Sole power to vote or to direct the vote   0 

(ii)        Shared power to vote or to direct the vote  410,255 ^(a)
(iii)       Sole power to dispose or to direct the disposition of  0
(iv)       Shared power to dispose or to direct the disposition of  410,255  ^(a)

_____
(a) Includes warrants to acquire 143,707 shares of common stock.  Does not include warrants to acquire 60,000 shares of common stock that are not currently exercisable.  Does not include 250,000 shares of common stock  issuable upon conversion of convertible note due in 2016. John A. Kanis is the sole stockholder of Kanis S.A. and controls the voting and investment decisions of Kanis S.A., accordingly, John A. Kanis may be deemed to share beneficial ownership of all shares of common stock beneficially owned by Kanis S.A.

Item 5.            Ownership of Five Percent or Less of a Class.

            If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be beneficial owner of more than five percent of the class of securities, check the following [  ].

Item 6.            Ownership of More than Five Percent on Behalf of Another Person.

                        Not Applicable

Item 7.            Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

                        Not Applicable

Item 8.            Identification and Classification of Members of the Group.

                        Not Applicable

Item 9.            Notice of Dissolution of Group.

                        Not Applicable

Item 10.          Certification.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, the undersigned hereby certifies that the information set forth in this statement is true, complete and correct.

January 15, 2013                                                                        John A. Kanis

                                                                                                    /s/ John A. Kanis                                 

                                                                                                    Kanis S.A.

                                                                                                    By  /s/ John A. Kanis                         

                                                                                                    Name:  John A. Kanis

                                                                                                    Title: Sole Stockholder