Corp. (DDC) has submitted applications to the Environmental Protection
Agency for emissions certification of its Series 60 diesel engines.
applications will cover 20 of the currently available Series 60
engine ratings. All will be fully compliant to the October 2002
emission requirements, the company said. Additional ratings will
be submitted for certification in the following months.
By Oct. 1,
DDC said it will have accumulated approximately eight million
test miles on its fleet of test vehicles equipped with October
2002 prototype engines. Also by Oct. 1, 27 different fleets will
have engines in operation, in addition to the factory-owned test
course, we are well aware of the questions some truckers have
about the Series 50 and 60 engines equipped with exhaust gas recirculation
(EGR)," said John Morelli, vice president of the Series 60
2002 Engine Program. "For those who may not be aware of it,
EGR has been used on the Series 50 since 2000. We have over 2,500
units in operation and I want to reassure the trucking industry
that these Series 60 and 50 engines are excellent products.
there has been a great deal of discussion about increased maintenance
intervals, along with questions about reliability and life to
overhaul. But, now that we have all these test miles under our
belt, we are confident that the new engines will continue to meet
our customers' expectations. The warranty on these engines remains
exactly the same - not even one word in the warranty has changed.
There is no difference in the recommended oil change intervals
because the soot concerns have not materialized. There is no change
in the required maintenance schedule and there are no additional
parts subjected to maintenance requirements ..."
the life of the piston ring is actually the key to long engine
life. He said the company has confirmed ring face wear is 78 percent
lower on the EGR engines when compared to current engines.
he said the company reduced the weight of the Series 60 by an
additional 25 pounds, so it now weighs several hundred pounds
less than the other big-bore engines.
On fuel economy
Morelli said, "We are currently within a couple percentage
points of our target. And, we will continue to fine tune the engine
and improve the combustion process."