Abstract: Methods and systems are disclosed for detecting imminent engine failure. The methods and systems involve receiving, in real-time, on-board machine parameters associated with a piece of heavy equipment, the on-board machine parameters comprising fuel consumption and fluid temperature; receiving time correlated external machine parameters associated with the piece of heavy equipment, the external machine parameters comprising outside ambient temperature, engine oil sample analysis, and operator observations; recording failure event information associated with actual engine failures; and calculating an estimated failure time for the engine based on the on-board machine parameters, the external machine parameters, and the failure event information.