Lucas Response To Zinc Additive

Does not Zinc included oil blends have about 1200 PPM per quart? So 5 quarts / liters have a total of about 6000 ppm in total during each oil change??

No. If you do the math, say one quart = 1 million parts, so one quart contains 1200ppm. Now multiply 5 quarts, that's 5 million "parts", and each quart contains 1200 parts, to times 5 =6000 parts/ but divided into 5 million, that still equals 1200ppm.

1=1200/1000000 = .0012 ratio Zinc to Oil
x5
5=6000/5000000 = .0012 ratio Zinc to Oil


FF