MDEP Highlights

April 10, 2009 

This week's MDEP Highlight demonstrates that significant fuel savings are possible even with engines that have low DPM to begin with.  The Fleet Analysis above shows a location with two dozers.  Each dozer was adjusted to take it from a relatively low DPM to an extremely low DPM.  In the case of equipment number 05103 the original DPM was recorded at 15.6%.  The human eye can just begin to see black smoke at 10% to 15% DPM.  This dozer was producing almost no visible smoke before any work was completed.  After working on this engine the DPM was lowered to 3.1% DPM producing a fuel savings of 1,422 gallons.  As you can see from this example significant fuel savings is possible with even those engines that do not appear to have any fuel loss as seen from the black smoke exiting the tailpipe.

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