ET means Extra Tread, ML stands for Mining and Logging, MPT means Multi-Purpose Truck and POR means Professional Off Road; 4/ &quot;
&quot; ET &quot; signifie &quot; Extra Tread &quot; , &quot; ML &quot; , &quot; Mining and Logging &quot; , &quot; MPT &quot; , &quot; Multi-Purpose Truck &quot; et &quot; POR &quot; , &quot; Professional Off Road &quot; ; 4/ &gt; &gt; .