1993 Johnson Evinrude "ET" 60 thru 70 Service Manual, P/N 508284, Page 23Get this manual
High Performance Any recreational engine, when used for high performance, requires 50:1 fueloil mixture in the fuel tank along with the systemIf the system is not used, 25: fueloil mixture is required in the fuel tankSevere Service The fueloil ratio remains the same when equipped recreational engine is used in commercial, rental, or extended severe serviceNo special consideration is necessaryFuelOil Mixing Instructions To be used if engine's desiredautomatic oiling system is not
'" Gasoline is extremely flammable and highly explosive under certain conditionsAlways stop engine and do not smoke or allow open flames or spark near the boat when refueling or changing fuel tanksAlways mix in well ventilated area
rv Portable tankadd required lubricantReplaceliters) gasoline Pour approximately gallon (4 into tank and filler cap securelyThoroughly mix by shaking tankAdd balance of gasoline