This 2001 Luhrs 34′ Sportfish is Diesel Powered and in Amazing Condition!! Meticulous Owner!! This low hour freshwater only Luhrs Sportfish has never been fished and has been used exclusively as a family cruiser on the Great Lakes. With very fuel-efficient twin Cummins Diesel Engines, you have plenty of power and a lifetime of fun to have with her. At a 22 kt cruise, she only burns 21 1/2 gals/hr (approx 11 gals/engine).