Bobcat Company released the Tier 4-compliant 5600 and 5610 Toolcat utility work machines that incorporate a non-DPF (diesel particulate filter) engine solution. These machines also feature a traction control system designed to provide operators with better mobility when ground conditions are conducive to traction loss, or the machines’ wheels encounter obstructions, such as rocks or debris. The Tier 4 Bobcat non-DPF solution was achieved by designing an ultra-low particulate combustion (ULPC) engine. The ULPC is accomplished through a specially designed engine combustion chamber that significantly reduces the amounts of particulate matter created during combustion. Therefore, Tier 4 emissions compliance can be achieved without using a DPF.