The mack truck

Most of the aggregates hauled into my ready mix plant on the 2 Freeway in Glendale were hauled by owner operators. One day a shiny Bull Dog Mack brings me a load similar to this first time I had seen it at the plant. Another of my drivers was giving me his ticket and says "That truck is the fastest truck in the LA Basin. Pass anything but a gas station." "Gas?" I says. "Yup, 672 inches of it."