YUP, My 90 Mustang hit 300.000 on the odometer yesterday still running strong !
Me. It had struggled to pass inspections the prior two years so in preparation I ran some Seafoam through it. Usually I change the oil the next day but I ended up driving it a couple more days. I left a dealership after bragging on it, reved it out in first gear on the feeder road and BOOM!!! Broke the crank at the front of the block; a connecting rod through the pan and a wobbly balancer is the result. This was about 2 years ago. If I had changed the oil, I would probably be at about 340k by now. Oh well, I have a 160k short block to replace it and a 306 block and pistons now to eventually build up for it.So, what killed yours at 306k miles? Just curious....
Not really the seafoam itself, but I bet the seafoam helped some gunk work loose in the motor, it traveled to the oil pan and ended up clogging the oil pump intake. By me revving it up with reduced oil pressure, the crank did not like it!So leaving the Sea Foam in and revving it up killed it?
CONGRATS to you Sir ! That is a major milestone. You should contact Ford and let them know....