Data from Mine 1 shows that the average load factor of the shovel engine is 66.78%,
which corresponds to a fuel consumption rate of 35.36 gals/hr and fuel efficiency of
39.29 tons/gal (of diesel). The average truck fuel consumption is 3.68 gals/cycle. This
leads to a fuel efficiency of 37.14 tons/gal. Overall, the fuel efficiency of the truck-andshovel
overburden removal operation is 19.09 tons/gal.