Rear Main Seal
 

Using Bar's Rear main seal stop leak stuff..... does It work, will it cuase any more problems?

It 'stops up' the leak. So what else will it 'stop up' ?

Enough said !!

well said i use radiator stop leak to stop the leak on my water pump on my pontiac. It stop that leak and then some, It pluged the holes that run inside the radiator an caused my car to overheat, not paying attention to my guages it blew my head gasket.

^^^^^ And heater cores.