The fuel consumption of an Isuzu dump truck equipped with a 12PE engine typically ranges from 10 to 12 miles per gallon (mpg), depending on factors like load, driving conditions, and maintenance. In metric terms, this translates to approximately 23 to 28 liters per 100 kilometers. Actual consumption can vary based on usage patterns and operational efficiency. For precise figures, consulting the manufacturer's specifications or user manuals is advisable.