REGI U.S., Inc. / Reg Technologies Inc. Announce RadMax(R) Engine to Use 20% Less...

REGI U.S., Inc. / Reg Technologies Inc. Announce RadMax(R) Engine to Use 20% Less Fuel Than Existing Gasoline Engine

VANCOUVER, British Columbia--(Business Wire)--
REGI U.S., Inc. (OTCBB: RGUS)(Frankfurt: RGJ) and Reg Technologies
Inc. (TSX Venture: RRE)(OTCBB: REGRF) are pleased to announce that
based on a recent independent engineering assessment, the RadMax(R)
diesel engine will use 20% less fuel than a gasoline engine, and 50%
less fuel than a turboprop jet engine.

Robert Grisar, Vice President of Engineering, states, "The cost of
gasoline has become one of the most important issues to North America
and having a fuel efficient engine in automobiles and trucks will help
reduce fuel consumption, and the demand for oil from offshore,
exporting nations.

The engineering assessment, performed by an independent company to
evaluate the RadMax(R) technology, states "The RadMax(R) Diesel Engine
Specific Fuel Consumption (SFC) will be less than 0.4 lb/hp/hr."

This is a useful parameter for engine comparisons. The SFC is the
fuel flow rate per unit power (P) output, expressed as:

SFC = mf / P

To calculate the mass flow (mf), you need to know the mass of
fuel. As an example, for gasoline, 1 liter = 740 g (and 1 US gal =
6.17 lb).

Typical average values of SFC for spark ignition, gasoline
reciprocating piston engines are 305 g/kW/h = 227 g/hp/h = 0.5
lb/hp/hr.

For a turboprop engine, the typical value is 0.8 lb/hp/hr.

From these calculations, the RadMax(R) diesel engine uses 20% less
fuel than a gasoline (petrol) engine (0.4 vs. 0.5), and half of a
turboprop jet engine (0.4 vs 0.8).

ABOUT REGI U.S., INC. AND REG TECHNOLOGIES INC.

Reg Technologies Inc. and REGI U.S., Inc. are developing for
commercialization an improved axial vane type rotary engine known as
the Rand Cam(TM)/RadMax(R) rotary technology used in the revolutionary
design of lightweight and high efficiency engines, compressors and
pumps. The RadMax(R) engine has only two unique moving parts, the
vanes (up to 12) and the rotor, compared to the 40 moving parts in a
simple four-cylinder piston engine. This innovative design makes it
possible to produce up to 24 continuous power impulses per one
rotation that is vibration-free and extremely quiet. The RadMax(R)
engine also has multi-fuel capabilities allowing it to operate on
fuels including gasoline, natural gas, hydrogen, propane and diesel.
REGI U.S., Inc. and its parent company, Reg Technologies Inc., are
currently designing and testing prototype RadMax(R) diesel engines,
compressors and pumps intended for aviation, automotive, industrial
processes and military applications. For more information, please
visit www.regtech.com .

ON BEHALF OF THE BOARD OF DIRECTORS

-0-
*T
REGI U.S., Inc. Reg Technologies Inc.

"John Robertson" "John Robertson"

John Robertson John Robertson
President President
*T

READER ADVISORY

Statements in this press release regarding the business of Reg
Technologies Inc. and REGI U.S, Inc. (together the "Companies'") which
are not historical facts are "forward-looking statements" that involve
risks and uncertainties, including management's assessment of future
plans and operations, and capital expenditures and the timing thereof,
certain of which are beyond the Companies' control. There can be no
assurance that such statements will prove accurate, and actual results
and developments are likely to differ, in some case materially, from
those expressed or implied by the forward-looking statements contained
in this press release. Readers of this press release are cautioned not
to place undue reliance on any such forward-looking statements.

Forward-looking statements contained in this press release are
based on a number of assumptions that may prove to be incorrect,
including, but not limited to: the impact of competitive products and
pricing, the Companies' dependence on third parties and
licensing/service supply agreements, and the ability of competitors to
license the same technologies as the Companies or develop or license
other functionally equivalent technologies; financing requirements;
changes in laws, rules and regulations applicable to the Companies and
changes in how they are interpreted and enforced, delays resulting
from or inability to obtain required regulatory approvals and ability
to access sufficient capital from internal and external sources, the
impact of general economic conditions in Canada, and the United
States, industry conditions, increased competition, the lack of
availability of qualified personnel or management, fluctuations in
foreign exchange, stock market volatility and market valuations of
companies with respect to announced transactions. The Companies'
actual results, performance or achievements could differ materially
from those expressed in, or implied by, these forward-looking
statements, including those described in Reg Technologies' financial
statements, management discussion and analysis and material change
reports filed with the Canadian Securities Administrators and
available at www.sedar.com, and its Form 20-F filed with the United
States Securities and Exchange Commission at www.sec.gov, and REGI's
Form 10-KSB annual report filed with the United States Securities and
Exchange Commission at www.sec.gov. Accordingly, no assurances can be
given that any of the events anticipated by the forward-looking
statements will transpire or occur, or if any of them do so, what
benefits, including the amount of proceeds, that the Companies will
derive therefrom.

Readers are cautioned that the foregoing list of factors is not
exhaustive. All subsequent forward-looking statements, whether written
or oral, attributable to the Companies or persons acting on its behalf
are expressly qualified in their entirety by these cautionary
statements. Furthermore, the forward-looking statements contained in
this news release are made as at the date of this news release and the
Companies do not undertake any obligation to update publicly or to
revise any of the included forward-looking statements, whether as a
result of new information, future events or otherwise, except as may
be required by applicable securities laws.

The TSX Venture Exchange has neither approved nor disapproved of
the information contained herein.

REGI U.S., Inc. and Reg Technologies Inc.
John Robertson, 1-800-665-4616

Copyright Business Wire 2008