[Charon]

It was put in to help hipo motors. It's levels peaked in the 80's.it's not necessary in v6. I don't advise it's use. And I rebuilt more engines last month that you will probably do in your life. I run Castro syntec 5- 50 I use about 400 gallons per year. It's bought in bulk. And delivered to my tank. And after break in it's All that is run in my or my customers rigs.