Specifications include, but are not limited to:Liquid cooled, 4 cylinder diesel, direct injection _____ _____ _____________________ b. 50 hp net minimum at rated rpm _____ _____ _____________________ c. Oil pressure lubricated _____ _____ _____________________ d. Spin-on throw-away type oil filter _____ _____ _____________________ e. Air cleaner dual element, with restriction gauge _____ _____ _____________________ f. Cold weather starting aid _____ _____ _____________________ g. Muffler _____ _____ _____________________ h. Variable Throttle _____ _____ _____________________ i. 18 gallon fuel capacity minimum _____ _____ _____________________ 2. Drive a. Hydrostatic, two speed _____ _____ _____________________ b. Two pedal foot controlled _____ _____ _____________________ c. Oil cooler _____ _____ _____________________ d. Variable speed 0 to 14 mph forward _____ _____ _____________________ e. Variable speed 0 to 5 mph reverse