answersLogoWhite

0

The formula is ((gallons of gas x 128) / mix ratio) or ((4 x 128) / 40). The true answer is 12.8 ounces for you, but if you were to put 13 ounces of oil in because measuring tenths of an ounce is hard to do, it would be okay.

User Avatar

Wiki User

11y ago

What else can I help you with?