Engines purchased after Sept. 30, 2002, will include some of the
same improvements when engines fully equipped with Caterpillar's
Advanced Combustion Emission Reduction Technology (ACERT) are
introduced starting early in 2003.
truck owners are concerned about maintenance costs for these engines
as well as engines from other manufacturers equipped with cooled
exhaust gas recirculation (EGR).
says maintenance schedules for its engines purchased after Sept.
30, will not change. There is no dilution in oil change intervals,
and engines are compatible with CH-4 and CI-4 lube oils, the company
said, adding: "Truck owners don't have to use new, more expensive
oils required by engines equipped with cooled EGR."
says its engines will utilize the Caterpillar Diesel Oxidation
Catalyst to optimize emission levels. This catalyst is incorporated
into each truck OEM's chassis and requires no maintenance.
on Caterpillar research and EPA data, reliability, durability
and maintenance costs will be substantially better than engines
with cooled EGR," said Steve Brown, marketing manager, Caterpillar
On-Highway Division. "In short, this will be the best engine
value available to customers during this period."
to the EPA, cooled EGR engines could cost customers $15,000 in
incremental owing and operating costs.
indicates that the intense heat load generated in the cooled EGR
engine, plus the unavoidable combination of sulfur in the fuel mixing
with hydrogen from the combustion cycle and becoming sulfuric acid
in the engine, will significantly limit extended oil drain intervals
and ultimately shorten engine life," Brown said.