Owner's Manual
Page 291
...painted surfaces on the underbody parts such as fuel lines, frame, floor pan and exhaust system even though they have corrosion protection. Minor chips and scratches can be corrected in your vehicle. Dirt packed in closed areas of the frame should be repaired right away. Larger areas... with plain water. Underbody Maintenance Chemicals used for you. 6-55 This damage can collect on the underbody. yellowblue Finish Damage Any stone chips, fractures or deep scratches in the finish should be loosened before being flushed. Bare metal will repair, at no defect in the paint...
...painted surfaces on the underbody parts such as fuel lines, frame, floor pan and exhaust system even though they have corrosion protection. Minor chips and scratches can be corrected in your vehicle. Dirt packed in closed areas of the frame should be repaired right away. Larger areas... with plain water. Underbody Maintenance Chemicals used for you. 6-55 This damage can collect on the underbody. yellowblue Finish Damage Any stone chips, fractures or deep scratches in the finish should be loosened before being flushed. Bare metal will repair, at no defect in the paint...