Correction...one CUP of TCW 3 oil per one gallon of gasoline...actually Kiekhaefer Mercury specified 6 ounces oil per gallon of gasoline for normal use and 8 ounces of oil per gallon of gasoline for race motors. Figures out to
21 to 1 for 6 ounces per gallon and 16 to 1 for 8 ounces per gallon
Louis