CONCLUSION:

Both the owner and maintenance manager at OSD Transport have reported a dramatic improvement in their fleet maintenance expenses since beginning the Clean Air Fleet Program in 2016.  They were spending around $5000 per month on emission related parts and labor, not including the downtime and related loss of revenue. The drivers also realized the benefits from reduced breakdowns and related delays on their routes, allowing them to make their deliveries on time with greater success.  They especially appreciate not dealing with check engine lights or driving on the shoulder of the freeway as the engine is de-rated due to DPF regenerations or other emission related problems.  

Since beginning the program they have doubled their oil drain intervals effectively cutting their oil change costs in half and netting $30,000 in oil savings annually with the CAF Oil Purifier systems.  With the CAF Premium Diesel Fuel Additive requiring less DPF regenerations, as well as increased lubricity and more complete fuel burn, gave the fleet an increase of 2 to 3 tenths of a mile per gallon for the year.  According to OSD Transport, the Clean Air Fleet Program was clean and efficient to implement and has already paid for itself multiple times over.