There is hardly any spice, especially Chili, in any base gravy recipe I've seen on this site or anywhere else and that is by design and to deal with this exact issue. Any excess oil present from what I've seen is skimmed off, or if left in the base it is emulsified. This should render the warmed pot of base gravy homogeneous and therefore it should make little to no difference in the dish. This is the exact purpose of a one size fits all base gravy. Freezing and thawing may cause some oil separation. I would re-blend or give it a good stir.
If you notice any stratification of your own base then you've answered your own question.