I have a 92 American Eagle with a 8.3 engine with 77,000 miles which has just started to leak from the rear of the oil pan , I'm ready for an oil change and have seen an additive that suppose...
I would advise against an additive. First find the cause of the leak. Loose pan gasket bolts? Bad gasket? Rear main seal? With only 77,000 miles I would not be using stop leak of any kind.