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Detroit Diesel Corporation and Turbodyne Apply for EPA Certification

13 August 1997

Detroit Diesel Corporation and Turbodyne Apply for EPA Certification

    DETROIT, Aug. 13 -- Detroit Diesel Corporation (DDC)
announced today that DDC and a subsidiary of Turbodyne Technologies Inc.
("Turbodyne") submitted an application on July 16, 1997, to the United States
Environmental Protection Agency for certification under the Urban Bus
Retrofit/Rebuild Program at the .10 gram particulate emission level.  The
application includes all mechanical unit injection 6V92 engines manufactured
between 1979 and 1989.
    DDC and Turbodyne have responded to the challenge of providing a cost-
effective means of complying with the EPA rebuild regulations, with minimal
impact on the fundamental engine and its performance.  The DDC/Turbodyne kit
includes parts traditionally replaced at time of overhaul, together with a
Turbopac(R) electric supercharger and a catalytic converter.  Manufactured by
Turbodyne, the Turbopac supercharger supplies positive air intake pressure at
acceleration to optimize the fuel/air ratio.  The Turbopac mounts between the
air inlet side of the turbo and the air cleaner.  Test data for a rebuilt DDC
6V92 using the DDC/Turbodyne kit shows a reduction of particulate emissions
to .09 grams per brake-horsepower-hour.
    DDC and Turbodyne intend to offer the package on complete reliabilt(R)
factory remanufactured engines, reliabilt long blocks and rebuild kits that
the customer can install at time of overhaul.  The .10 gram particulate
rebuild kits can be purchased through authorized Detroit Diesel distributors
once certification is granted.
    Turbodyne is an integrated manufacturing company specializing in the
design, manufacture and marketing of high technology performance improvement
and anti-pollution devices for automotive, marine and industrial applications.
Turbodyne's light metal division is a manufacturer of machined permanent mold
and sand cast aluminum products for the automotive industry.
    Detroit Diesel Corporation is engaged in the design, manufacture, sale and
service of heavy-duty diesel and alternative fuel engines, automotive diesel
engines, and engine-related products, maintains QS-9000 certification for its
manufacturing and parts distribution operations, and provides financing
through Detroit Diesel Capital Corporation.  The Company offers a complete
line of diesel engines from ten to 10,000 horsepower for the on-highway truck;
construction, mining and industrial; automotive; coach and bus; marine; power
generation; and military markets.  Detroit Diesel services these markets
directly and through a worldwide network of more than 2,500 authorized
distributors and dealers.
    Detroit Diesel's major shareholder is a wholly-owned subsidiary of Penske
Corporation, a closely-held, diversified transportation services company which
conducts its business through a number of wholly- or partially-owned
companies, including Penske Truck Leasing Company, Diesel Technology Company,
AG Kuhnle, Kopp and Kausch, Penske Automotive Group, Inc., Penske Auto
Centers, Inc., Penske Motorsports, Inc., and Penske Capital Partners.  The
Penske group of businesses has annual revenues exceeding $6 billion and
employs more than 25,000 around the world.
    Turbodyne's integrated manufacturing capabilities also include precision
machining, electronic circuit boards, brushless motors, high efficiency
centrifugal fan modules and custom alloy wheels for the automotive
aftermarket.  Its offices and plants are located in Carpinteria, Calif.; La
Mirada, Calif.; Encinitas, Calif.; Ensenada, Mexico; North Hampton, England;
Vancouver, British Columbia, Canada; and Monchengladbach, Germany.
    Detroit Diesel Corporation's World Wide Web address is
 http://www.detroitdiesel.com.
     Turbodyne System's World Wide Web address is http://www.turbodyne.com.

SOURCE  Detroit Diesel Corporation