EXHIBIT 23.1.2 Consent of Independent Certified Public Accountants International Fuel Technology, Inc. St. Louis, Missouri We hereby consent to the use in the Prospectus constituting a part of this Registration Statement on Form S-1 of our report dated April 7, 2000, relating to the financial statements of International Fuel Technology, Inc. We also consent to the reference to us under the caption "Experts" in the Prospectus. /s/ BDO Seidman, LLP St. Louis, Missouri June 27, 2000