This is a specialized ZDDP replacement additive we use in autobox Minis, but can be used in all engines. This is a poly ester based additive that doesn't contain the traditional moly and metals that can harm wet clutches, but it does contain an additive package that protects even better than the traditional ZDDP addtives. It can also be used as a break in additive.
 
Most modern oils, and wet clutch oils, don't contain near enough antiwear additives for A series engines, so this is used with every oil service we do where we cannot use regular high zinc oil.