Does anyone have any experience in the Jeep Cherokee with the 4.7?my cousin is thinking about buying a 05 with 100,000kms on it,he does alot of driving, his 01 blazer has about 350,000 kms trouble free,can he expect the 4.7v8 to be as reliable?He is also considering other ute's among them is a durango with the 5.7l Hemi,which i hear is a absolute timebomb of a engine,Any thoughts?