Transit offers a great extension to our policy holders called Side Tank Cover. This covers the side tank (Self powered) diesel spill clean-up costs. In the event of an accident, on many occasions the diesel side tank is ruptured, spilling its diesel into the environment. These types of spillages can range from 10 litres to 1000 litres, often covering a large road surface. This can create an environmental problem for the surrounding environments, which may result in large clean-up and disposal costs.