At 1352 Engine 252 Tanker 253 Medic 257 and Medic 258 responded to the 34.5 mile-marker of I-81 north bound for a reported Motor Vehicle Collision w vehicle on fire. Upon arrival units found a single vehicle on its side w no fire visible. The patients exited the vehicle through the windshield prior to arrival. The vehicle was stabilized w Paratech Rescue Struts. The roadway was cleared of debris. Patients signed refusals and the call was cleared at 1506.