Cruising down the Interstate, you glance at the tachometer and gasp as you see the needle hovering at under 1,200 rpm. Yet the engine isn’t vibrating or straining, and the rig continues to move steadily forward.
Cruising down the Interstate, you glance at the tachometer and gasp as you see the needle hovering at under 1,200 rpm. Yet the engine isn’t vibrating or straining, and the rig continues to move steadily forward.