I worked at a dealer from 98 to 02. They ran good but they burnt alot of oil. Go up a hill on the highway about 85 mph then at the peak, lock it out of overdrive and engine brake it hard as far as you can, then floor it and look in the mirror. If everything disappears in a cloud of smoke run away. I remember pulling heads off of them with 20k on them and you could see the entire top ring on the top and bottom of the bore they were so out of round. There was no boring and overbore pistons available then so we had to replace them. Most caddy owners never check the oil and with 7 quarts they would usually make it change to change so most never know they had problems. Until the warranty ran out.
2011 Ranger Sport 4x4 = DD. 1994 F150, windsor,4.10s,new metal.
1965 Mustang FB=Pride and joy.
1968 Torino Fb= Another project.
1966 Mustang coupe= Project or parts, cant decide.