paccar mx13 engine,, used 745k on engine. 455 hp. Had 60lb oil pressure @ .1500 rpm going down road, In last 15 months has had new turbo & actuator, oil cooler & module, fan clutch, fuel filter module & lift pump with hoses, had new clutch 20k ago so flywheel was just turned. Oil changed every 15k never needed to add any between changes. Replaced it with a cummins eng, not out of a wrecked truck