^^ I stay far away from any additives......If you research it a bit you'll see that most of them have went through several lawsuits, due to sever engine damage, but to each their own. Personally I choose a good quality full synthetic oil, and stick with it. No need for anything else.

Check this old thread that I started a few years ago....


https://www.cmoc.ca/mustang-drivetra...ul-info-11991/