Whayne's Service Department is now offering the Mirenco’s Diesel Evaluation Procedure or MDEP.

MDEP uses a probe to analyze exhaust gases to check for five emissions: carbon dioxide, oxides of nitrogen, carbon monoxide, oxygen, and hydrocarbons. These are the same emissions the Environmental Protection Agency is always looking at.

When these gases are analyzed it can be determined if all the fuel going into the engine is burned or coming out the exhaust stacks. The results are fed into a large computer database and compared to the results from the same engine model in the same type of machine. From there the fuel air mixture is adjusted to get the leanest adjustment for highest combustion level. The lower the emissions, the more efficient the combustion.

“This service will give us another tool and evaluation procedure to effectively analyze exhaust emissions before and after maintenance is completed,” explained Jim Durrett, Manager, Product Support Sales. “MDEP is not just for Caterpillar machines but competitive machines as well. As fuel costs increase and with environmental concerns, getting the most out of every gallon of diesel fuel has become crucial.” For example if you have a fleet of ten machines and they are all off “just a little” and their combined amount of unburned fuel is 18,000 gallons a year, that comes to over $36,000 dollars a year at $2.00 a gallon!

Once a machine is tested and adjusted, it can be equipped with a C-Max (for digital fuel injectors) unit or D-Max (for analog fuel injectors) unit that automatically controls the fuel injector system or the throttle pedal to help maintain optimum efficiency. The three main causes for an engine not to burn clean are air/fuel imbalance, faulty fuel injectors or improper injector timing.