http://www.gizmag.com European tests have shown that a boat tail – a tapering protrusion mounted on the rear of a truck – leads to fuel savings of 7.5 percent. The fuel savings, which also means a cut in emissions, were realized by the boat tail dramatically reducing the drag caused by the lower-pressure effect that occurs in the wake of a vehicle.en gizmag.com http://www.gizmag.com/truck-boat-tail/13283/#comment-15355 http://www.gizmag.com/truck-boat-tail/13283/#comment-15355 Mon, 15 Feb 2010 15:35:39 -0600 http://www.gizmag.com/truck-boat-tail/13283/#comment-10105 http://www.gizmag.com/truck-boat-tail/13283/#comment-10105 Fri, 06 Nov 2009 18:43:41 -0600