I recommend to my customers to choose a motor oil that is highly
ranked to begin with and so it doesn’t need any additional help...
And to use that oil just as it pours right out of the bottle with no
aftermarket additives at all...
Blackstone Labs wisdom
"Usually, at least several of these additives will be synergistic. That
is, they react mutually, in groups of two or more, to create an effect
that none of them could attain individually. Changing or adding to
this formula can upset the balance and negate the protective effect
the formula was meant to achieve, even if you are only adding more of
something that was already included in the initial package."