CREATE TABLE table_name_68 (builder VARCHAR(255), order_year VARCHAR(255), fuel_propulsion VARCHAR(255), model VARCHAR(255))
Which builder has a Fuel Propulsion of diesel, a Model of d40lf, and an Order Year of 2005?
    
SQL: SELECT builder FROM table_name_68 WHERE fuel_propulsion = "diesel" AND model = "d40lf" AND order_year = "2005"