Originally Posted By: Rosetta
Ok, what about additive depletion just for decantation? Is sitin oil lossing detergents and dispersants attached to the particles at the bottom of container?
No, they are not necessarily attached. However, many here will advise to shake bottles and jugs of new oil just before useing them, due to solids, presumably additives, accumulating at the bottom of the jugs over time.
Your decantation will likely remove additives along with the contaminates, and since the oil is partially depleated already, thats not helping at all.