American Power Group to Participate at 2014 ACT Expo/2014 NGV Global Conference

LYNNFIELD, MA--(Marketwired - May 5, 2014) - American Power Group Corporation (OTCQB: APGI) announced that its subsidiary, American Power Group, Inc. ("APG") will be an exhibitor at the 2014 Alternative Clean Transportation (ACT) Expo, North America's largest clean fleet show representing all weight classes and alternative fuels. ACT Expo 2014 will gather more than 3,500 participants at the Long Beach Convention Center in Long Beach, California May 5-8. The ACT Expo 2014 is being held concurrently with the 2014 NGV Global Conference and is endorsed by the American Trucking Associations ("ATA"). Lyle Jensen, APG's Chief Executive Officer, will speak at the NGV Global Breakout Session on Tuesday, May 6, 2014 on the attributes of dual fuel technology for heavy duty trucks. APG will be displaying a 2014 Columbia Day Cab APG Dual Fuel Glider™ with a rebuilt Series 60 12.7L engine. The APG Dual Fuel Glider™ was recently named a 2014 Top 20 Product by Heavy Duty Trucking Magazine.

Lyle Jensen stated, "As the heavy-duty trucking industry looks for every penny of fuel cost savings, the 2014 ACT Expo provides us a tremendous opportunity and platform to educate prospective fleets on the economic and environmental benefits of using APG's dual fuel solutions as an effective alternative to 100% diesel without any loss of power or torque. The North American shale gas boom has generated retail natural gas fuel prices that are 30 to 50 percent lower than the equivalent cost of diesel. Switching to lower-cost, domestically produced natural gas will lower America's dependence on imported foreign oil and provide fleet operators a better hedge against future fuel price fluctuations." 

Mr. Jensen concluded, "APG has emerged as the dual fuel market leader with the most EPA engine model approvals by a factor of 30X, an extensive and capable installation network, and flexible financing programs. These attributes will allow fleets of all sizes to realize immediate fuel savings by converting their existing fleets to APG's dual fuel system or purchasing a new APG Dual Fuel Glider™. Since January, our WheelTime Dealer/Installer Network members have been adding 3-4 new early-adopter dual fuel customers per month and several have begun to order or request quotes for follow-on production quantities of 10- 50 trucks. This acceleration in dual fuel adoption is expected to lead to a long and steady growth opportunity as fleets find a growing number of accessible on-route CNG and LNG filling stations to make natural fuel fueling as hassle free as diesel fuel is today." 

About Gladstein, Neandross & Associates (GNA)
GNA is the leading North American consulting firm specializing in market development for low-emission and alternative fuel vehicle technologies, infrastructure and fuels for both on and off-road applications. GNA provides strategic market analysis and planning, technical assistance, and public affairs and policy support to clients in the private, public and non-profit sectors. For 20 years, GNA has pioneered the nation's largest and most innovative alternative fuel vehicle projects. In addition to its technical consulting practice, GNA hosts two of North America's leading alternative fuel and advance vehicle technology conferences -- the Alternative Clean Transportation (ACT) Expo and the High Horsepower (HHP) Summit. See additional information at www.gladstein.org. 

About American Power Group Corporation
American Power Group's alternative energy subsidiary, American Power Group, Inc., provides a cost-effective patented Turbocharged Natural Gas™ conversion technology for vehicular, stationary and off-road mobile diesel engines. American Power Group's dual fuel technology is a unique non-invasive energy enhancement system that converts existing diesel engines into more efficient and environmentally friendly engines that have the flexibility to run on: (1) diesel fuel and liquefied natural gas; (2) diesel fuel and compressed natural gas; (3) diesel fuel and pipeline or well-head gas; and (4) diesel fuel and bio-methane, with the flexibility to return to 100% diesel fuel operation at any time. The proprietary technology seamlessly displaces up to 75% of the normal diesel fuel consumption with the average displacement ranging from 40% to 65%. The energized fuel balance is maintained with a proprietary read-only electronic controller system ensuring the engines operate at original equipment manufacturers' specified temperatures and pressures. Installation on a wide variety of engine models and end-market applications require no engine modifications unlike the more expensive invasive fuel-injected systems in the market. See additional information at: www.americanpowergroupinc.com.

Caution Regarding Forward-Looking Statements and Opinions
With the exception of the historical information contained in this release, the matters described herein contain forward-looking statements and opinions, including, but not limited to, statements relating to new markets, development and introduction of new products, and financial and operating projections. These forward-looking statements and opinions are neither promises nor guarantees, but involve risk and uncertainties that may individually or mutually impact the matters herein, and cause actual results, events and performance to differ materially from such forward-looking statements and opinions. These risk factors include, but are not limited to, the fact that our dual fuel conversion business has lost money in the last five consecutive fiscal years, the risk that we may require additional financing to grow our business, the fact that we rely on third parties to manufacture, distribute and install our products, we may encounter difficulties or delays in developing or introducing new products and keeping them on the market, we may encounter lack of product demand and market acceptance for current and future products, we may encounter adverse events economic conditions, we operate in a competitive market and may experience pricing and other competitive pressures, we are dependent on governmental regulations with respect to emissions, including whether EPA approval will be obtained for future products and additional applications, the risk that we may not be able to protect our intellectual property rights, factors affecting the Company's future income and resulting ability to utilize its NOLs, the fact that our stock is thinly traded and our stock price may be volatile, the fact that we have preferred stock outstanding with substantial preferences over our common stock, the fact that the conversion of the preferred stock and the exercise of stock options and warrants will cause dilution to our shareholders, the fact that we incur substantial costs to operate as a public reporting company and other factors that are detailed from time to time in the Company's SEC reports, including the report on Form 10-K for the year ended September 30, 2013 and the Company's quarterly reports on Form 10-Q. Readers are cautioned not to place undue reliance on these forward-looking statements and opinions, which speak only as of the date hereof. The Company undertakes no obligation to release publicly the result of any revisions to these forward-looking statements and opinions that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.