For those who wonder what exactly happens to an engine that has over 250,000 miles on it, David Tracy over at Jalopnik has a great video overview of his 1992 Jeep Cherokee XJ’s engine. Three of the engine mount bolts that kept his engine mount to the car broke off and caused the motor to do a little dance in the engine bay. He pulled the engine out to get to the bolts, but ended up taking it apart just to see what condition it was in. Turns out Jeep makes great engine that lasts a long time. Head on over to read the article and check out the video.