2001 Dodge Grand Caravan fuel system problems

A frontal offset crash test was performed, when the vehicle was rotated 90 degrees onto its side during the routine post-crash investigation of the underbody a stoddard fluid leak was observed near the fuel tank, the leak continued for 36 min until the vehicle was returned to its normal position, inspection of the tank showed that the leak originated from the top right side of the fuel tank where the sender unit makes a seal with the tank housing. Nlm

Ruptured fuel line spraying gasoline onto muffler. The fuel lines are plastic and are attached to the fuel filter and are replaced together as a unit. The plastic line had a quarter inch rupture. This filter had less than 30k miles and was about a year old. Why does chrysler use plastic fuel line? I do not know the cause - a weak inferior plastic or a sharp stone perhaps. Either way, it does not matter. I have never seen a hard plastic used for fuel delivery.