0000950123-11-062826 424B1 2 20110629 20110629 CLEAN DIESEL TECHNOLOGIES INC 0000949428 3564 061393453 DE 1231 424B1 33 333-174680 11939280 4567 TELEPHONE ROAD SUITE 206 VENTURA CA 93003 805 639 9458 4567 TELEPHONE ROAD SUITE 206 VENTURA CA 93003 424B1 1 v59644b1e424b1.htm 424B1 GRAPHIC 2 v59644b1v5964401.gif GRAPHIC