My Voyager van has 170,000 miles on it.
I rebuilt it because of a mistake made while it was under warranty.
I have now put 70,000 miles on the rebuild. I blew a headgasket
so it had to come down again. Please look at this pic - you
can still see the cross hatch marks left by the hone. When I
rebuilt it I ran it for 500 miles then put it on Mobil1.
Thats just one - but all 6 look that good. I had never had
a chance to look inside one of my engines since they were
on Mobil1. Now I have and I still think it is the thing to do.