The libations of lambs may be mixed with the libations of other lambs. These contain three logs (one-and-a-half cup) of oil per issaron of flour. One can even mix the libations of private individual's lamb with the libations of a communal lamb, and even those of today with those of tomorrow - as long as they did not get sanctified in a vessel.
If one made the libations of bulls and accidentally mixed with the libations of lambs, they are valid, even though of different oil consistency - because they do not mix further. But if one mixed them before the ingredients were combined, the result is invalid.
Art: Eugène Verboeckhoven - A Bull And Sheep In A Landscape