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Detroit Diesel Corporation Introduces New Fuel Economy Feature - PasSmart(TM)

17 March 2000

Detroit Diesel Corporation Introduces New Fuel Economy Feature - PasSmart(TM)

    DETROIT, March 17 Detroit Diesel Corporation
(DDC) will introduce a new feature for Series 60 powered trucks,
named PasSmart(TM) (patent pending), during the Mid American Trucking Show.
    PasSmart is available as standard equipment on all recent Series 60
engines.  The feature allows two maximum vehicle speeds to be programmed into
the Series 60 engine.
    The lower of the two vehicle speeds is reachable at any time, as desired
by the driver.  The higher of the two vehicle speeds is available on a limited
basis and is designed primarily for use when passing is required.  The amount
of time the higher speed is available, as well as the speed itself, is easily
programmed by the owner of the vehicle.
    "With fuel prices at today's levels, PasSmart gives fleets the best of
both worlds.  They can select one speed that will provide good fuel economy
and a second speed that drivers can use when passing is required on interstate
highways.  The vehicle owner can select up to a 20 mph difference in the two
speeds and can make the higher speed available for any time period from 1 to
255 minutes.  The vehicle can be operated continuously or intermittently at
the higher speed until the time period is exhausted.  The time period is
automatically reset at an owner selected interval by the built-in clock in
every recent Series 60 ECM."
    "For example, a fleet might select 63 mph as the speed desired for good
fuel economy, and might also want to allow drivers 68 mph for brief periods of
use on interstate highways when allowed by the posted speed limit," according
to Tom Diefenbaker, Director, Electronic Products Business Development at DDC.
PasSmart now permits them to do both.  It's a great way to save fuel and keep
drivers happy at the same time.  PasSmart is available only on the Series 60
engine.
    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.  The company offers a complete line of
diesel engines from 22 to 10,000 horsepower for the on-highway, off-road and
automotive markets.  Detroit Diesel services these markets directly and
through a worldwide network of more than 2,800 authorized distributor and
dealer locations.  DDC is a QS-9000 certified company.
    Detroit Diesel's major shareholder is Penske Corporation, a closely-held
diversified transportation services company whose operations include Penske
Truck Leasing Company, Diesel Technology Company, Penske Automotive Group,
Inc., Penske Auto Centers, Inc., and Penske Capital Partners, L.L.C.  Penske
Corporation and its subsidiaries manage business with annual revenues
exceeding $10 billion and employ more than 33,000 people around the world.
    Detroit Diesel's World Wide Web address is http://www.detroitdiesel.com .