What is oil mixture for 2002 Mercury 115 HP outboard motor?

The oil injection system installed on the 2002 model, varies the amount of oil supplied to the engine, according to RPM range. Simply fill the oil tank, located on the engine, no mixing with fuel required. If the oil injection system has been disabled, mix the fuel at 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.