In Reply to: sounds plausible,but.... posted by ram on October 27, 2000 at 17:53:20:
If it weren't for the mechanic's observation, you would be driving your car with no worries.
Even if the stop leak did not work, you would still have the mechanic do the repair. I see it as low risk and you could get lucky. The mechanic won't like it becasue he does not get to do the repair just yet. Perhaps if you get lucky then you get more run time on the engine until it is time for a rebuild at a much later date. This is just my two cents and I know it sounds odd to do this to a BMW.
I just dumped the stop leak into my radiator (no flushing) and I feel like I got lucky. I did add more stop leak when I flushed and changed coolant for maintenance reasons later on. Jim