[cnavarro]

The only way to be sure of what you are doing would be to know the concentration of the additive, the exact level in the oil you are starting with, and a target amount based off the amount of detegency in the oil. Then only after running this modified oil back to back with the unmodified oil with used oil analysis could you determine whether or not the additive is improving things. This is something not even the manufacturer of this oil additive have done (or at least when they started selling it - because I asked). They are just under the assumption that more is better.