Here at Richard I. Green, Inc.  we have made a concious effort to provide the best service while preserving our environment.  The average age of trucks is 2.75 years and the average age of our trailers is 3.7 years.  We have installed auxillary power units on our trucks to limit idling time and allow our drivers to stay comfortable.  Also, we have switched our fleet over to super single tires which has resulted in an average fuel savings of 4%.  In addtion to this we have started installing side air skirts on our trailers to provide the most efficient combination we can.