Omnitek Engineering announced it has received approval from the Environmental Protection Agency for its diesel-to-natural gas conversion technology. The approval concerns Omnitek’s technology for the line of heavy-duty Navistar DT466E and DT530E engines under specific and rigorous criteria related to the agency's Outside Useful Life definition.

The Navistar DT466E and DT530E engines were produced in 130 different configurations from 1996 through 2003.

“Approval of our technology by the EPA represents a significant milestone for the company and we anticipate tremendous domestic demand to convert diesel truck and bus engines to operate on liquefied natural gas (LNG), compressed natural gas (CNG) or renewable biogas,” said Werner Funk, president & CEO.

Funk said the company has been installing its technology outside the U.S. since 2001, with more than 5,000 conversions currently in operation.

“During the 20-year life span of diesel engines, routine overhauls are required and service budgets established in advance. By converting these diesel engines to operate on natural gas during a routine engine overhaul, truck operators can realize a significant return on investment, with much lower fuel costs and cleaner combustion,” Funk said.

Funk added that the company expects to obtain EPA approval for other diesel engine models as well.

To meet expected demand, Omnitek also announced it has signed a lease for a 25,000 sq. ft. facility in San Marcos, CA.

“In addition to conversion activities related to these two Navistar engines and the different configurations, which represents an estimated addressable market of 1.5 million potential conversions, the new facility is designed to support additional engine development programs - including sales support, training and manufacturing,” said Funk.