" 15 Hp Evin. Two hose, pump u
" 15 Hp Evin. Two hose, pump up tank, # 0n caling is 203717 F, don't see ser # any where. also what oil to use, says to use 30 W outboard motor oil or 30 W car oil; 1 pt. to 1 gal. of gas, any rec on gas mix??? any help thankful "