1998 Johnson Evinrude EC 50 thru 70 HP 3-Cylinder Service Manual, Page 23Get this manual
High Performance Any engine, when used for high performance, requires 50: fueloil mixture in the fuel tank along with the systemIfthe system is not used, 25:1 fuel oil mixture is required in the fuel tankSevere Service When equipped engine is used in commercial, rental, or extended severe service, no additional oiling is necessaryFuelOil Mixing Instructions DR3848
INote To be used if engine's
desired
automatic 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 areaC02335
ITJ Portable TankAbove and below 32 (00 e)' add one gallon
(4 litres) of fuelPour in required amount of oilAdd remaining fuelInstall filler cap and tip tank gently to distribute oil