Hybrid Fuel Systems Adds New EPA Certification for Ford 4.6 Liter Engines

TAMPA, Fla.--(BUSINESS WIRE)--July 13, 2005--Hybrid Fuel Systems, Inc. (OTCBB:HYFS), a manufacturer and distributor of diesel and gasoline conversion systems, announces the addition of a new CNG dedicated, EPA Certification for 4.6 Liter Ford engines, installed in Crown Victoria, Crown Victoria Police, Lincoln Town Car, and Mercury Grand Marquis vehicle platforms.

The Fuel 2(TM) Light technology consists of a conversion system which takes advantage of CNG fuel at a cost differential of $.70 - $1.00(per/gal.eqv.) less, compared to gasoline. The electronic Port Sequential Fuel Injected System mimics the OEM fuel strategy and provides feedback over 244 times per second. Simultaneously while one injector is firing, it is also calculating the fuel mixture and volume for the next injector. If necessary, electronic adjustments are made in the air/fuel ratio. Fuel 2 Light provides fuel to cylinders in the same firing order as GM, Ford, or any OEM. Additionally, this fuel injection system has been developed to maintain precise control of the alternative fuel of choice, (LPG and/or CNG) for optimal performance and reliability.

Located in Atlanta, Georgia, Tampa, Florida and Oklahoma City, Oklahoma, Hybrid is a small volume manufacturer of EPA Certified bi-fuel and dedicated natural gas and propane turnkey conversion systems. The systems are installed in light- and medium- and heavy-duty vehicles in private fleets and governmental agencies. The Company continues to develop and certify various transportation platforms to meet EPA requirements. Hybrid has a full service alternative fuels center with slow/fast fill stations as well as compressor installation and maintenance capabilities.

About Hybrid Fuel Systems - Formed in 1996, Hybrid Fuel Systems holds a worldwide license to commercialize a patent system for the conversion of diesel engines to non-petroleum based fuels such as natural gas. Hybrid has a family of EPA Certified light, medium systems that are bi-fuel, dual fuel and dedicated conversion technologies for gasoline and diesel platforms.

For more information, contact CEO Mark Clancy (813) 624-5515 or visit the company's website at http://www.hybridfuelsystems.com. Investors may contact Frank Hawkins or Julie Marshall, Hawk Associates, at (305) 451-1888, e-mail: info@hawkassociates.com.

An online investor relations kit containing Hybrid Fuel Systems press releases, SEC filings, current Level II price quotes, interactive Java stock charts and other useful information for investors can be found at http://www.hawkassociates.com and http://www.hawkmicrocaps.com.

Investors are cautioned that certain statements contained in this document are "Forward-Looking Statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements which are predictive in nature, which depend upon or refer to future events or conditions, which include words such as "believes," "anticipates," "intends," "plans," "expects" and similar expressions. In addition, any statements concerning future financial performance (including future revenues, earnings or growth rates), ongoing business strategies or prospects, and possible future Hybrid actions, which may be provided by management, are also forward-looking statements as defined by the act. These statements are not guarantees of future performance.