OX2 Engine Reaches New Performance Thresholds

OX2 Engine Reaches New Performance Thresholds
Advanced Engine Technologies Inc. Engineers Reach New Performance Levels in
Development of the OX2 Engine 


LOS ANGELES, April 22  /PRNewswire-FirstCall/ -- Advanced Engine Technologies
Inc.   (BULLETIN BOARD: AENG)  announced today that testing and developmental
progress on the OX2 engine continues as scheduled.  As presented at the
company's annual shareholder meeting in Los Angeles, California in November
2003, the current OX2 engine continues to out perform each of its previous test
engines in overall horsepower and torque.

The latest of AET's engines is its design level #2, OX2 engine #4 (OX2#4),
where AET's engineers report a maximum horsepower of 35.5 hp at 1065 RPMs while
also achieving maximum torque of 193 ft. lbs. at 900 RPMs.  These baseline
performance results were achieved without the retro-fitting of the OX2's newly
designed port plate, which provides modifications to the port shape and size. 
This new port design is expected to improve the performance of OX2#4 based upon
the test results achieved during its testing on OX2 engine #2, where intake and
exhaust air flow velocity dramatically improved performance overall.

Also unveiled at the company's shareholder meeting was AET engineer's concept
and design of an OX2 Generator prototype.  This design utilizes a separate
generator head driven by an OX2 engine.  The Company has begun beta testing and
will report on progress in the company's next development update.

The OX2 is a 4-stroke, 1.1-liter internal combustion engine that is 17 inches
in diameter with a length of 13 inches and a total weight of 179 pounds in
normally aspirated form.  The compact engine weighs 75 percent less than and is
half the size of traditional internal combustion engines.  In addition, it
offers the flexibility of being able to run on a variety of fossil fuels
including gasoline, diesel, natural gas, liquid propane or methane.  In
addition, with far fewer moving parts than traditional engine designs, the OX2
engine could offer the further advantages of significantly enhanced operation
and maintenance costs and a longer useful life.

With its expected higher power-to-weight ratio, multi-fuel capacity and
anticipated low emissions and fuel efficiency, the OX2 has a practical and much
needed application in the commercial and industrial generator markets.
Additional future applications may include marine, light-duty farm and
construction equipment, light aircraft, and the hybrid electric vehicle market.
 However, the near term focus remains electrical generator applications.

Investor inquiries can be directed to the company at [phone].  To update
the investment community and all interested parties about the progress of the
OX2 engine, Advanced Engine Technologies has established a hotline at
310/323-2895.  Additional information pertaining to the OX2 engine can be
accessed through the company's Web site at http://www.ox2engine.com/.

Safe Harbor Statement under the Private Securities Litigation Reform Act of
1995

This release may contain forward-looking statements involving risks and
uncertainties that may cause actual future events or results to differ
materially and adversely from those described in the forward-looking
statements.  Important factors that may cause such a difference for AET
include, but are not limited to, whether our engine products are made viable,
whether a market for our products develops, our ability to retain key
management, our ability to hire and retain the technical personnel necessary to
build our products, the availability of funding for future operating
requirements, our ability to effectively predict or react to rapid technology
changes that could render our products obsolete, product development delays,
dependence on suppliers, our potential exposure to product liability and other
tort claims if our products fail, our ability to protect our intellectual
property, intellectual property disputes, and other factors discussed in AET
filings from time to time with the Securities and Exchange Commission.  AET
cautions that the foregoing list of important factors is not exclusive.  AET
disclaims any obligation to revise or update any forward-looking statement that
may be made from time to time by or on its behalf. 

DATASOURCE: Advanced Engine Technologies Inc.



CONTACT:  Jake Jundef, , or Soon Nguyen,

, both of JMPR, Inc., [phone], for

Advanced Engine Technologies Inc.



Web site:  http://www.ox2engine.com/ 

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